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DIAGNOSTIC FUNCTION
 
 
 
 
MALFUNCTION INDICATOR LAMP (SERVICE ENGINE SOON OR CHECK ENGINE LAMP)
Among the on-board diagnostic items, Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates or blinks to notify the driver of an emission control malfunction.
However, when an irregular signal returns to normal and the engine control module judges that it has returned to normal, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) will switch off.
When the ignition switch is in the ON position, the indicator lamp should be illuminated. When the engine starts, the indicator lamp should be extinguished.
noteWhen the Transaxle Control Module (TCM) detects malfunctions related to the CVT, the Malfunction indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) is also illuminated.
 
 
 
Items Indicated by the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp)
DTCITEM
P0010Engine oil control valve circuit
P0011Variable valve timing system target error
P0016Crankshaft/camshaft position sensor phase problem
P0031Linear air-fuel ratio sensor heater control circuit low
P0032Linear air-fuel ratio sensor heater control circuit high
P0037Heated oxygen sensor (rear) heater control circuit low
P0038Heated oxygen sensor (rear) heater control circuit high
P0053Linear air-fuel ratio sensor heater resistance
P0068*1Mass airflow sensor plausibility
P0069Abnormal correlation between manifold absolute pressure sensor and barometric pressure sensor
P0102*1Mass airflow circuit low input
P0103*1Mass airflow circuit high input
P0106Manifold absolute pressure circuit range/performance problem
P0107Manifold absolute pressure circuit low input
P0108Manifold absolute pressure circuit high input
P0111*1Intake air temperature circuit range/performance problem
P0112*1Intake air temperature circuit low input
P0113*1Intake air temperature circuit high input
P0116*1Engine coolant temperature circuit range/performance problem
P0117*1Engine coolant temperature circuit low input
P0118*1Engine coolant temperature circuit high input
P0121*1Throttle position sensor (main) plausibility
P0122*1Throttle position sensor (main) circuit low input
P0123*1Throttle position sensor (main) circuit high input
P0125*1Insufficient coolant temperature for closed loop fuel control
P0128Coolant thermostat (coolant temperature below thermostat regulating temperature)
P0130Linear air-fuel ratio sensor circuit
P0131Linear air-fuel ratio sensor circuit low voltage
P0132Linear air-fuel ratio sensor circuit high voltage
P0133Linear air-fuel ratio sensor circuit slow response
P0134Linear air-fuel ratio sensor circuit no activity detected
P0137Heated oxygen sensor (rear) circuit low voltage
P0138Heated oxygen sensor (rear) circuit high voltage
P0139Heated oxygen sensor (rear) circuit slow response
P0140Heated oxygen sensor (rear) circuit no activity detected
P0171System too lean
P0172System too rich
P0181Fuel tank temperature sensor circuit range/performance
P0182Fuel tank temperature sensor circuit low input
P0183Fuel tank temperature sensor circuit high input
P0221*1Throttle position sensor (sub) plausibility
P0222*1Throttle position sensor (sub) circuit low input
P0223*1Throttle position sensor (sub) circuit high input
P0261Injector circuit low input - cylinder 1
P0262Injector circuit high input - cylinder 1
P0264Injector circuit low input - cylinder 2
P0265Injector circuit high input - cylinder 2
P0267Injector circuit low input - cylinder 3
P0268Injector circuit high input - cylinder 3
P0300*2Random/multiple cylinder misfire detected
P0301*2Cylinder 1 misfire detected
P0302*2Cylinder 2 misfire detected
P0303*2Cylinder 3 misfire detected
P0327Knock sensor circuit low
P0328Knock sensor circuit high
P0335*1Crankshaft position sensor circuit
P0340*1Camshaft position sensor circuit
P0421Warm up catalyst efficiency below threshold
P0441Evaporative emission control system incorrect purge flow
P0442Evaporative emission control system leak detected (small leak)
P0450Evaporative emission control system pressure sensor malfunction
P0451Evaporative emission control system pressure sensor range/performance
P0452Evaporative emission control system pressure sensor low input
P0453Evaporative emission control system pressure sensor high input
P0455Evaporative emission control system leak detected (gross leak)
P0456Evaporative emission control system leak detected (very small leak)
P0458Evaporative emission control system purge control valve circuit low input
P0459Evaporative emission control system purge control valve circuit high input
P0461Fuel level sensor circuit range/performance
P0462Fuel level sensor circuit low input
P0463Fuel level sensor circuit high input
P0498Evaporative emission control system canister vent solenoid circuit low input
P0499Evaporative emission control system canister vent solenoid circuit high input
P0500*1Vehicle speed sensor malfunction <M/T>
P0506Idle control system RPM lower than expected
P0507Idle control system RPM higher than expected
P0602*1Control module programming error
P0606*1Engine control module main processor malfunction
P060B*1Internal control module A/D processing performance problem
P060D*1Internal control module accelerator pedal position performance problem
P061A*1Internal control module torque performance problem
P061C*1Internal control module engine RPM performance problem
P062F*1Internal control module EEPROM error
P0630*1Vehicle Identification Number (VIN) malfunction
P0638*1Throttle actuator control motor circuit range/ performance
P0642*1Throttle position sensor power supply
P0657*1Throttle actuator control motor relay circuit malfunction
P1238*1Mass airflow sensor plausibility (torque monitor)
P1506Idle control system RPM lower than expected at low temperature
P1507Idle control system RPM higher than expected at low temperature
P1590*1TCM to ECM communication error in torque reduction request <CVT>
P1603*1Battery backup circuit malfunction
P2096Post catalyst fuel trim system too lean
P2097Post catalyst fuel trim system too rich
P2100*1Throttle actuator control motor circuit (open)
P2101*1Throttle actuator control motor magneto malfunction
P2122*1Accelerator pedal position sensor (main) circuit low input
P2123*1Accelerator pedal position sensor (main) circuit high input
P2127*1Accelerator pedal position sensor (sub) circuit low input
P2128*1Accelerator pedal position sensor (sub) circuit high input
P2135*1Throttle position sensor (main and sub) range/performance problem
P2138*1Accelerator pedal position sensor (main and sub) range/performance problem
P2228*1Barometric pressure circuit low input
P2229*1Barometric pressure circuit high input
P2237Linear air-fuel ratio sensor positive current control circuit/open
P2243Linear air-fuel ratio sensor reference voltage circuit/open
P2251Linear air-fuel ratio sensor negative current control circuit/open
P2252Heated oxygen sensor offset circuit low voltage
P2253Heated oxygen sensor offset circuit high voltage
U0101*1TCM time-out <CVT>
U0121ASC-ECU time-out <M/T>
U0155*1Combination meter time-out
noteIf the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates because of a malfunction of the engine control module (ECM), communication between the scan tool MB991958 (M.U.T.-III sub assembly) and the ECM is impossible. In this case, the diagnostic trouble code cannot be read.
noteAfter the ECM has detected a malfunction, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates when the engine is next turned on and the same malfunction is re-detected. However, for items marked with a "*1" in the DTC NO. column, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates only on the first detection of the malfunction.
noteThe codes marked with a "*2" in the diagnostic trouble code number column have the following two conditions for illuminating the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp).
  • In case that the misfire causing the damaged catalyst is detected, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) will flash until the condition is corrected. If the system detects the same malfunction after the next engine start, and then the condition is corrected, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) will illuminate.
  • In case that the misfire deteriorating the exhaust gas is detected, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) is illuminated when the same malfunction is redetected after the next engine start.
noteEven if the malfunction is not detected when the ECM monitors the malfunction three consecutive times* after the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates, turn off the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) when the engine starts next time.
  • *: In this case, "one time" in monitoring the malfunction means the period from the time of the current engine start to the time of the next engine start. "One time" in monitoring the misfire or the fuel system malfunction means the time when the operating conditions (such as the engine speed or the engine coolant temperature) becomes similar operating conditions of the first detected malfunction.
 
 
HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Ensure that the ignition switch is at the "LOCK" (OFF) position.
2. Start up the personal computer.
3. Connect special tool MB992747/M992748 or special tool MB991827 to special tool MB992744 or special tool MB991824 and the personal computer.
4. Connect special tool MB992745 or special tool MB991910 to special tool MB992744 or special tool MB991824.
5. Connect special tool MB992745 or special tool MB991910 to the data link connector.
noteWhen the special tool MB992745 is connected to the data link connector, the special tool MB992744 indicator light will be illuminated in a green color.
6. Turn the power switch of special tool MB991824 to the "ON" position. <When using the special tool MB991824>
noteWhen special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color.
7. Start the M.U.T.-III system on the personal computer.
noteDisconnecting scan tool (M.U.T.-III) is the reverse of the connecting sequence, making sure that the ignition switch is at the "LOCK" (OFF) position.
 
 
 
HOW TO READ AND ERASE DIAGNOSTIC TROUBLE CODES.
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III) to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select."
4. Choose "from 2006 MY" under "MODEL YEAR".
5. Check that "Vehicle Information" contents are correct.
6. Choose "MFI".
7. Select "Diagnostic Trouble Code"
8. If a DTC is stored, it is shown.
9. Choose "Erase DTCs" to erase the DTC.
 
 
 
HOW TO READ DATA LIST
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III) to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select."
4. Choose "from 2006 MY" under "MODEL YEAR".
5. Check that "Vehicle Information" contents are correct.
6. Choose "MFI".
7. Select "Data List."
8. Choose an appropriate item and select the "OK" button.
 
 
 
HOW TO PERFORM ACTUATOR TEST
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III) to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select."
4. Choose "from 2006 MY" under "MODEL YEAR".
5. Check that "Vehicle Information" contents are correct.
6. Choose "MFI".
7. Select "Actuator Test."
8. Choose an appropriate item and select the "OK" button.
 
 
 
HOW TO DIAGNOSE THE CAN BUS LINES
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III) to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "CAN bus diagnosis" from the start-up screen.
4. When the vehicle information is displayed, confirm that it matches the vehicle whose CAN bus lines will be diagnosed.
  • If they matches, go to Step 8.
  • If not, go to Step 5.
5. Select the "view vehicle information" button.
6. Enter the vehicle information and select the "OK" button.
7. When the vehicle information is displayed, confirm again that it matches the vehicle whose CAN bus lines will be diagnosed.
  • If they matches, go to Step 8.
  • If not, go to Step 5.
8. Select the "OK" button.
9. When the optional equipment screen is displayed, choose the one which the vehicle is fitted with, and then select the "OK" button.
 
 
 
HOW TO READ PROVISIONAL DIAGNOSTIC TROUBLE CODES
Required Special Tools:
  • MB992744: Vehicle communication interface-Lite (V.C.I.-Lite)
  • MB992745: V.C.I.-Lite main harness A
  • MB992747: V.C.I.-Lite USB cable short
  • MB992748: V.C.I.-Lite USB cable long
  • MB991958: Scan Tool (M.U.T.-III Sub Assembly)
    • MB991824: Vehicles Communication Interface (V.C.I.)
    • MB991827: M.U.T.-III USB Cable
    • MB991910: M.U.T.-III Main Harness A (Vehicles with CAN communication system)
If detecting the malfunction during the first drive cycle, the ECM temporarily stores the diagnostic trouble code as the provisional diagnostic trouble code. If detecting the same malfunction during the next drive cycle, the ECM determines that the malfunction exists. The ECM outputs the diagnostic trouble code. On Scan Tool MB991958, it is possible to display the stored provisional diagnostic trouble code which the ECM had detected during the first drive cycle. This makes it possible to confirm in one drive cycle whether the malfunction could happen again after the repair.
 
 
CONFIRMATION METHOD
cautionTo prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
1. Connect scan tool (M.U.T.-III) to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Select "System select."
4. Choose "from 2006 MY" under "MODEL YEAR".
5. Check that "Vehicle Information" contents are correct.
6. Choose "MFI".
7. Select "Special Function" from MFI Screen.
8. Select "Provisional DTCs" from Special Function Screen.
 
 
 
 
PERMANENT DTC
The permanent DTC(PDTC) is stored in the EEPROM of the engine control module (ECM) as the permanent status, which checks that the malfunction of the emission related components/ the system has not been repaired yet. When detecting the malfunction necessary to illuminate the malfunction indicator lamp (SERVICE ENGINE SOON or Check Engine Lamp), the ECM illuminates the MIL and stores the appropriate DTC as the permanent DTC in the EEPROM concurrently. The usual DTC is stored in the EEPROM aside from this. The ECM can store up to 6 PDTCs. The ECM, therefore, cannot store the 7th and subsequent PDTCs. If the temporary malfunction causes the malfunction indicator lamp to be illuminated and then the reinstatement during the subsequent driving causes it to be extinguished, the PDTC is erased. Also if the ECM checks that the DTC malfunction is fixed during the driving after the DTC repair is completed, the PDTC is erased. The permanent DTC, however, is not erased by disconnecting the battery terminal or erasing with the scan tool (M.U.T-III). The permanent DTC can be erased if all readiness statuses are erased or not completed at the time of reprogramming the ECM. If must be erased while the vehicle is repaired, the PDTC can be erased by the procedures shown below. If must be erased because of the failure to pass the Inspection and Maintenance (I/M) test, the permanent DTC can also be erased by the following procedure:
 
 
PROCEDURES FOR ERASING PERMANENT DTC
1. Check that the DTC is not stored. If the DTC is stored, perform the DTC troubleshooting, then repair the DTC.
noteThe order of Step 2 and 3 can be exchanged.
2. Drive the vehicle at least once under the conditions satisfying all the following requirements:
  • The total driving (engine running) time must be more than 10 consecutive minutes.
  • More than 30 seconds of idling must be included in the driving
  • More than 5 consecutive minutes of driving at more than 40 km/h (25 mph) must be included in the driving.
3. Drive the vehicle at least two times in the drive cycle pattern suitable for the permanent DTC. (Refer to OBD-II DRIVE CYCLE for the drive cycle pattern.) If the DTC does not have the drive cycle pattern, start and stop the engine. Wait 15 seconds or more to start again after the stop. Repeat at least 2 times.
4. Restart and stop the engine.
5. Check that the permanent DTC is erased. If the permanent DTC is not erased, check the DTC or the provisional DTC. If the malfunction code is stored, repair the DTC. Try to erase the permanent DTC again (from Step 1 to 5). If the malfunction code is not stored, the drive cycle pattern (Step 3) monitoring the malfunction can possibly be insufficient.
 
 
 
 
MODE 6 REFERENCE TABLE
The engine control module (ECM) monitors the condition of emission control system. By selecting MODE 6 using scan tool, Test Result and Limit Value (minimum) *1 or (maximum) *2 about the main items of emission control system which ECM monitors can be confirmed. The value at the last monitoring is output by ECM as a test result.
ON-BOARD DIAGNOSTIC MONITOR IDSTANDARDIZED / MANUFACTURER DEFIND TEST IDMONITORING ITEMSIMPLE TECHNICAL DESCRIPTIONCONVERSION COEFFICIENT IN USING GENERAL SCAN TOOL
0181A/F Sensor Monitor Bank 1 - Sensor 1
Rich/Lean Switching frequency
ECM monitors the deteriorated condition of the linear air-fuel ratio sensor by checking the rich/lean switching frequency of the linear air-fuel ratio sensor.× 1 count
0208Oxygen Sensor Monitor Bank 1 - Sensor 2
Maximum Sensor Voltage for Test Cycle
ECM checks the output voltage of the heated oxygen sensor (rear) in order to monitor whether the heated oxygen sensor (rear) outputs the rich signal.× 0.122mV
82Oxygen Sensor Monitor Bank 1 - Sensor 2
Output Voltage change
ECM checks the output voltage of the heated oxygen sensor (rear) in order to monitor whether the heated oxygen sensor (rear) output is stuck.× 0.122 mV
05Oxygen Sensor Monitor Bank 1 - Sensor 2
Rich To Lean Sensor Switch Time
ECM checks the rich to lean switching time of the heated oxygen sensor (rear) in order to monitor the response of the heated oxygen sensor (rear).× 1 msec
88Oxygen Sensor Monitor Bank 1 - Sensor 2
Output Voltage drop slope
ECM checks the output voltage drop slope of the heated oxygen sensor (rear) in order to monitor the response of the heated oxygen sensor (rear).× 1 msec
2183Catalyst Monitor Bank 1
Frequency ratio between Front- and Rear-Oxygen Sensors
ECM monitors the deterioration of catalyst by the output frequency ratio between linear air-fuel ratio sensor and heated oxygen sensor (rear).× 0.0039
3589VVT Monitor Bank 1
Cam Phase Angle Deviation (between target and actual position)
ECM monitors the deviation between the intake camshaft target phase angle and the intake camshaft actual phase angle.× 0.01°
3985EVAP Monitor (Cap off)
Pressure drop during de-pressurizing
ECM monitors the leak of fuel evaporation gas by checking whether the pressure can be reduced (the amount of pressure reduction) using the fuel tank differential pressure sensor after sealing the fuel tank and the fuel line.× 0.0117 kPa
3B85EVAP Monitor (0.040")
Pressure rise during airtight condition
After ECM vacuumizes the fuel tank and the fuel line and then the specified time is passed, ECM monitors the leak of fuel evaporation gas through the fuel tank differential pressure sensor to check the reduction of vacuum in the fuel tank.× 0.0117 kPa
3C85EVAP Monitor (0.020")
Pressure rise during airtight condition
After ECM vacuumizes the fuel tank and the fuel line and then the specified time is passed, ECM monitors the leak of fuel evaporation gas through the fuel tank differential pressure sensor to check the reduction of vacuum in the fuel tank.× 0.0117 kPa
4186A/F Sensor Heater Monitor Bank1 - Sensor1
Heater Monitoring Current
ECM checks the amperage of the linear air-fuel ratio sensor heater.× 0.001 A
A20BMis-Fire Cylinder 1 Data
EWMA Misfire Counts For Last 10 Driving Cycles
ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for last 10 driving cycles.× 1 count
0CMis-Fire Cylinder 1 Data
Misfire Counts For Last/Current Driving Cycle
ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycle.× 1 count
A30BMis-Fire Cylinder 2 Data
EWMA Misfire Counts For Last 10 Driving Cycles
ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for last 10 driving cycles.× 1 count
0CMis-Fire Cylinder 2 Data
Misfire Counts For Last/Current Driving Cycle
ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycle.× 1 count
A40BMis-Fire Cylinder 3 Data
EWMA Misfire Counts For Last 10 Driving Cycles
ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for last 10 driving cycles.× 1 count
0CMis-Fire Cylinder 3 Data
Misfire Counts For Last/Current Driving Cycle
ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycle.× 1 count
note*1: Minimum value: The test fails if test value is less than this value.
note*2: Maximum value: The test fails if test value is greater than this value.
noteWhen not finishing the monitor of the driving cycle for the request of On-Board Monitoring Test Request, the ECM outputs the stored latest monitor test result.
noteWhen the monitored test results are erased by the battery disconnection and so on, the ECM outputs the values in hexadecimal of "0000" or "FFFF", otherwise it outputs abnormal values and so on. In case of this, the ECU outputs are handled as invalid-values. When the first monitor (Readiness Status) is completed after this, the ECM outputs the valid-values.
note"Test Limit Type & Component ID byte" output from the ECM is given in hexadecimal of "00" or "80". "00" means the maximum value and "80" means the minimum value.
 
 
ON-BOARD DIAGNOSTICS
The engine control module (ECM) monitors the input/output signals (some signals all the time and others under specified conditions) of the ECM. When a malfunction continues for a specified time or longer after the irregular signal is initially monitored, the ECM judges that a malfunction has occurred. After the ECM first detects a malfunction, a diagnostic trouble code is recorded when the engine is restarted and the same malfunction is re-detected. However, for items marked with a "*1", a diagnostic trouble code is recorded on the first detection of the malfunction. The diagnostic results can be read out with a scan tool. Since memorization of the diagnostic trouble codes is backed up directly by the battery, the diagnostic results are memorized even if the ignition key is turned off. The diagnostic trouble codes will, however, be erased when the battery terminal or the ECM connector is disconnected. In addition, the diagnostic trouble code can also be erased by turning the ignition switch to ON and sending the diagnostic trouble code erase signal from scan tool MB991958 to the ECM.
note If the sensor connector is disconnected with the ignition switch turned on, the diagnostic trouble code is memorized. In this case, send the diagnostic trouble code erase signal to the ECM in order to erase the diagnostic memory. The ECM records the engine operating condition when the diagnostic trouble code is stored. This data is called "Freeze-frame" data. This data can be read by using the scan tool, and can then be used in simulation tests for troubleshooting. Data items are as follows:
noteIf the ECM detects multiple malfunctions, the ECM stores the "Freeze-frame" data for only the first item that was detected. However, if the ECM detects a misfire or a fuel system malfunction, the ECM stores the data by giving priority to the misfire or fuel system malfunction, regardless of the order in which the malfunction was detected.
noteAs for Diagnostic trouble code P1603, "Freeze-frame" data is not memorized.

Freeze Frame Data for M.U.T.-III
ITEM NO.M.U.T.-III SCAN TOOL DISPLAYDATA ITEMUNIT or STATE
1OdometerOdometerkm or mile
2Ignition cycle (Warm up cycle)Ignition cycle (Warm up cycle)-
4Accumulated minuteAccumulated minute*min
note*: Accumulated time of current malfunction from time point when malfunction is detected.
Freeze Frame Data (OBD) for M.U.T.-III
ITEM NO.M.U.T.-III SCAN TOOL DISPLAYDATA ITEMUNIT or STATE
AAAirflow sensorMass airflow sensorg/s
ABTP sensor (main)Throttle position sensor (main)%
BBBarometric pressure sensorBarometric pressure sensorkPa or in.Hg
BCRelative TP sensorRelative throttle position sensor%
BDTP sensor (sub)Throttle position sensor (sub)%
BEAPP sensor (main)Accelerator pedal position sensor (main)%
BFAPP sensor (sub)Accelerator pedal position sensor (sub)%
C0Fuel system status (bank1)Fuel control system status
  • Open loop
  • Closed loop
  • Open loop-drive condition
  • Open loop-DTC set
  • Closed loop-O2 (rear) failed
C1*Fuel system status (bank 2)Fuel control system status (bank 2)N/A
C2Calculated load valueCalculated load value%
C3ECT sensorEngine coolant temperature sensor°C or °F
C4Short term fuel trim (bank 1)Short-term fuel trim%
C5*Short term fuel trim (bank 3)Short-term fuel trim (bank 3)****
C6Long term fuel trim (bank 1)Long-term fuel trim%
C7*Long term fuel trim (bank 3)Long-term fuel trim (bank 3)****
CCMAP sensorManifold absolute pressure sensorkPa or in.Hg
CDCrankshaft position sensorCrankshaft position sensorr/min
CEVehicle speedVehicle speedkm/h or mph
CFSpark advanceSpark advance°CA
D0Intake air temperature sensor 1Intake air temperature sensor°C or °F
D1Time since engine runningTime since engine runningsec
D6EVAP. emission purge SOL. dutyEvaporative emission purge solenoid duty%
D7Fuel level gaugeFuel level gauge%
D8Power supply voltagePower supply voltageV
D9Absolute load valueAbsolute load value%
DATarget equivalence ratioTarget equivalence ratio-
DBIntake air temperature sensor 1Intake air temperature sensor (ambient air temperature)°C or °F
DCThrottle actuatorThrottle actuator control motor%
DDRelative APP sensorRelative accelerator pedal position sensor%
242Fuel tank differential PRS.SNSRFuel tank differential pressure sensorPa
note*: Data items are displayed on scan tool display, but the in-line 4 engine is not applicable and its data is displayed as "N/A" or "****".
Freeze Frame Data for General Scan Tool
COMMON EXAMPLE of GENERAL SCAN TOOL DISPLAYPRAMETER IDENTIFICATION (PID)DESCRIPTIONUNIT or STATE
DTCFRZF02DTC that caused required freeze frame data storagePxxxx, Uxxxx
FUELSYS 103See M.U.T.-III Item No. C0
LOAD_PCT04See M.U.T.-III Item No. C2
ECT05See M.U.T.-III Item No. C3
SHRTFT 106See M.U.T.-III Item No. C4
LONGFT 107See M.U.T.-III Item No. C6
MAP0BSee M.U.T.-III Item No. CC
RPM0CSee M.U.T.-III Item No. CD
VSS0DSee M.U.T.-III Item No. CE
SPARKADV0ESee M.U.T.-III Item No. CF
IAT0FSee M.U.T.-III Item No. D0
MAF10See M.U.T.-III Item No. AA
TP11See M.U.T.-III Item No. AB
RUNTM1FSee M.U.T.-III Item No. D1
EGR_PCT2CSee M.U.T.-III Item No. BA
EVAP_PCT2ESee M.U.T.-III Item No. D6
FLI2FSee M.U.T.-III Item No. D7
EVAP_VP32See M.U.T.-III Item No. 242
BARO33See M.U.T.-III Item No. BB
VPWR42See M.U.T.-III Item No. D8
LOAD_ABS43See M.U.T.-III Item No. D9
EQ_RAT44See M.U.T.-III Item No. DA
TP_R45See M.U.T.-III Item No. BC
AAT46See M.U.T.-III Item No. DB
TP_B47See M.U.T.-III Item No. BD
APP_D49See M.U.T.-III Item No. BE
APP_E4ASee M.U.T.-III Item No. BF
TAC_PCT4CSee M.U.T.-III Item No. DC
APP_R5ASee M.U.T.-III Item No. DD
 
 
OBD- II DRIVE CYCLE
All kinds of diagnostic trouble codes (DTCs) can be monitored by carrying out a short drive according to the following 22 drive cycle patterns. In other words, doing such a drive regenerates any kind of trouble which involves illuminating the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) and verifies the repair procedure has been eliminated [the trouble the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) is no longer illuminated].
cautionTwo technicians should always be in the vehicle when carrying out a test.
noteCheck that the diagnostic trouble code (DTC) is not output before driving the OBD-II drive cycle. Erase the DTC if it has been output.
noteDrive cycle patterns are not established for Vehicle speed sensor monitor (DTC P0500) and Fuel level sensor monitor (DTC P0461). Please reference the M.U.T. data list to judge whether these monitor items are normal.

DRIVE CYCLE PATTERN LIST
MONITOR ITEMDIAGNOSTIC TROUBLE CODE (DTC)PATTERN
Linear air-fuel ratio sensor monitor <Readiness test item>P01331
Heated oxygen sensor (rear) feedback control system monitor P2096, P2097
Linear air-fuel ratio sensor heater monitor <Readiness test item>P00312
Heated oxygen sensor heater monitor <Readiness test item>P0037
Linear air-fuel ratio sensor heater monitorP0032
Heated oxygen sensor heater monitorP0038
Catalytic converter monitor <Readiness test item>P04213
Evaporative emission system leak monitor (small leak and gross leak) <Readiness test item>P0442, P04554
Evaporative purge system monitorP0441
Fuel tank pressure sensor monitorP0450
Evaporative emission system leak monitor (very small leak) <Readiness test item>P04565
Manifold absolute pressure (MAP) sensor monitorP0106, P01076
Intake air temperature sensor monitorP01117
Engine coolant temperature sensor monitorP0116, P01258
Thermostat monitorP01289
Heated oxygen sensor (rear) monitor <Readiness test item>P013910
Air fuel ratio feedback monitor-11
Heated oxygen sensor (rear) monitor <Readiness test item>P014012
Fuel tank temperature sensor monitorP018113
Misfire monitorP0300, P0301, P0302, P030314
Fuel tank pressure sensor monitorP045115
Throttle position sensor plausibility monitorP0121, P022116
Mass airflow sensor plausibility monitorP0068, P1238
Torque monitorP061A
Idle speed control system monitorP0506, P050717
Idle speed control system monitorP1506, P150718
Variable valve timing system (MIVEC) monitorP0010, P0011, P001619
Fuel trim monitorP0171, P017220
Linear air-fuel ratio sensor heater monitor <Readiness test item>P005321
Heated oxygen sensor monitorP0137
Linear air-fuel ratio sensor monitorP0130, P0131, P0132, P0134, P2237, P2243, P2251
Mass airflow sensor monitorP0102, P010322
Manifold absolute pressure (MAP) sensor monitorP0108
Intake air temperature sensor monitorP0112, P0113
Engine coolant temperature sensor monitorP0117, P0118
Heated oxygen sensor monitorP0138, P2252, P2253
Fuel tank temperature sensor monitorP0182, P0183
Injector monitorP0261, P0262, P0264, P0265, P0267, P0268
Knock sensor monitorP0327, P0328
Crankshaft position sensor monitorP0335
Camshaft position sensor monitorP0340
Evaporative emission purge solenoid monitorP0458, P0459
Evaporative emission ventilation solenoid monitorP0498, P0499
Fuel tank pressure sensor monitorP0452, P0453
Fuel level sensor monitorP0462, P0463
Engine RPM plausibility monitorP061C
Barometric pressure sensor monitorP2228, P2229

 
 
PATTERN 1
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 76°C (169°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle for 4 minutes at the following conditions. (During the monitor)
    noteWhen the system is normal, the monitor is completed earlier.
    • Vehicle speed: More than 30 km/h (19 mph)
    • Engine speed: More than 2,000 r/min, less than 4,000 r/min <M/T>
    • Engine speed: More than 1,300 r/min, less than 3,000 r/min <CVT>
    • Engine load: More than 22 %, less than 65 %
    • Without rapid accelerator pedal movement
  3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 2
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 10 seconds. (During the monitor)
  3. Turn the ignition switch to the "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 3
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 0°C (32°F)
  • Intake air temperature: More than -10°C (14°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all accessories switched OFF.
  2. Drive the vehicle for 5 minutes at the following conditions. (During the monitor)
    • Engine speed: Less than 3,500 r/min
    • Airflow rate: More than 6 g/sec, less than 45 g/sec <M/T>
    • Airflow rate: More than 10 g/sec, less than 45 g/sec <CVT>
    • Accelerator pedal: Except full close
    • Without rapid accelerator pedal movement
  3. Release the accelerator pedal for 5 seconds.
  4. Drive the vehicle for 3 minutes at the following conditions. (During the monitor)
    • Engine speed: Less than 3,500 r/min
    • Airflow rate: More than 6 g/sec, less than 45 g/sec <M/T>
    • Airflow rate: More than 10 g/sec, less than 45 g/sec <CVT>
    • Accelerator pedal: Except full close
    • Without rapid accelerator pedal movement
      noteWhen the system is normal, the monitor is completed earlier.
  5. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  6. Start the engine and do Steps 1 to 5 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  7. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 4
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature at engine start: Less than 36°C (96°F)
  • Intake air temperature at engine start: Less than 36°C (96°F)
  • Fuel amount at engine start: More than 15 %, less than 40 %
  • Engine coolant temperature: More than 60°C (140°F)
  • Intake air temperature: More than 5°C (41°F), less than 45°C (113°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
  • Fuel temperature: Less than 36°C (97°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle for 16 minutes at the following conditions. (During the monitor)
    • Engine speed: More than 1,600 r/min, less than 4,000 r/min
    • Vehicle speed: More than 20 km/h (12 mph)
    • Airflow rate: More than 12 g/sec
    • The ratio between the manifold absolute pressure and the barometric pressure is 0.85 or less.
    • Without rapid accelerator pedal movement
      noteKeep running as long as possible with the power steering pressure switch in the OFF position.
      noteWhen the system is normal, the monitor is completed earlier.
  3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 5
Inspection conditions
  • Engine coolant temperature at engine start: Less than 36°C (96°F)
  • Intake air temperature at engine start: Less than 36°C (96°F)
  • Fuel amount at engine start: More than 40 %, less than 85 %
  • Engine coolant temperature: More than 20°C (68°F)
  • Intake air temperature: More than -10°C (14°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
  • Fuel temperature: Less than 33°C (91°F)
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 16 minutes. (During the monitor)
    noteWhen the system is normal, the monitor is completed earlier.
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 6
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature at engine start: More than 0°C (32°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 30 seconds. (During the monitor)
  3. Accelerate the vehicle for 2 seconds at the following conditions. (During the monitor)
    • Engine speed: More than 1,500 r/min
    • Engine load: More than 20 %
    • Throttle position sensor output voltage: More than 3.5 volts
  4. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  5. Start the engine and do Steps 1 to 4 again.
  6. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 7
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 76°C (169°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle at more than 50 km/h (31 mph) for 1 minute.
  3. Stop the vehicle in a safe place and let the engine idle for 30 seconds.
  4. Repeat Steps 2 and 3 again.
  5. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  6. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 8
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature at engine start: More than 0°C (32°F)
  • Intake air temperature: Less than 60°C (140°F)
  • Engine coolant temperature: More than 40°C (104°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle for 6 minutes at the following condition.
    • Vehicle speed: More than 50 km/h (31 mph)
    • Air flow rate: More than 12 g/sec
    • Except fuel cut
  3. Stop the vehicle in a safe place and let the engine idle for 30 seconds.
  4. Turn the ignition switch to "LOCK" (OFF) position.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 9
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature at engine start: More than -10°C (14°F), less than 60°C (140°F)
  • Intake air temperature: More than -10°C (14°F)
  • Dropping of intake air temperature since engine start: Less than 10°C (18°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle for 6 minutes at the following conditions. (During the monitor)
    • Vehicle speed: More than 50 km/h (31 mph)
    • Air flow rate: More than 10 g/sec
      noteThe system is normal if engine coolant temperature will rise more than 77°C (171°F) within 6 minutes.
  3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 10
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 76°C (169°F)
  • Intake air temperature: More than -10°C (14°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle at 50 km/h (31 mph) for 6 minutes.
  3. Release the accelerator pedal for 10 seconds then stop the vehicle in a safe place. (During the monitor)
  4. Turn the ignition switch to "LOCK" (OFF) position.
  5. Start the engine and do Steps 1 to 4 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  6. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 11
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 0°C (32°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 3 minutes.
  3. Drive the vehicle for 30 seconds at the following conditions. (During the monitor)
    • Engine speed: More than 1,200 r/min
    • Engine load: More than 30 %
    • Throttle position sensor output: Less than 3.0 volts
    • Except fuel cut
  4. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 12
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 76°C (169°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle at 50 km/h (31 mph) for 5 minutes.
  3. Release the accelerator pedal for 5 seconds then stop the vehicle in a safe place.
  4. Increase the speed of the vehicle to 50 km/h (31 mph) under the following conditions, and then drive the vehicle for 1 minute.
    • Engine speed: More than 1,500 r/min
    • Engine load: More than 40 %
  5. Release the accelerator pedal for 5 seconds then stop the vehicle in a safe place.
  6. Repeat Steps 4 and 5 for 2 times.
  7. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  8. Start the engine and do Steps 1 to 7 again.
    noteWhen the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be set as "Complete" on the first drive cycle. The second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle.
  9. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 13
Inspection conditions
  • Engine coolant temperature at engine start: More than -10°C (14°F), less than 36°C (97°F)
  • Difference between engine coolant temperature and intake air temperature at engine start: Less than 5°C (9°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle at more than 30 km/h (19 mph) until engine coolant temperature rises more than 60°C (140°F). (During the monitor)
  3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 14
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than -10°C (14°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle for 3 minutes at the following conditions. (During the monitor)
    • Engine speed: More than 500 r/min, less than 3,000 r/min
    • Engine load: More than 20 %
    • Without rapid accelerator pedal change
    • Except fuel cut
  3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 15
Drive cycle pattern
Inspection conditionCondition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Accelerate until the vehicle speed is more than 50 km/h (31 mph).
  3. Stop the vehicle in a safe place and let the engine idle for 20 seconds. (During the monitor)
  4. Repeat Steps 2 and 3 for 10 times.
  5. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  6. Start the engine and do Steps 1 to 5 again.
  7. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 16
Drive cycle pattern
Inspection conditions
  • Engine coolant temperature: More than 20°C (68°F)
  • Condition of CVT: Selector lever "D" range
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the vehicle at more than 50 km/h (31 mph) for 30 seconds. (During the monitor)
  3. Stop the vehicle in a safe place and turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 17
Inspection conditions
  • Engine coolant temperature: More than 41°C (106°F)
  • Intake air temperature: More than -10°C (14°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 1 minute. (During the monitor)
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 18
Inspection conditions
  • Engine coolant temperature: More than 7°C (45°F), less than 41°C (106°F)
  • Intake air temperature: More than -10°C (14°F)
  • Barometric pressure: More than 76 kPa (22.4 in.Hg)
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 1 minute. (During the monitor)
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 19
Inspection conditionEngine coolant temperature: More than 77°C (171°F), less than 87°C (189°F)
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Drive the engine at 1,200 - 1,500 r/min for 30 seconds. (During the monitor)
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 20
Inspection conditionEngine coolant temperature: More than 76°C (169°F)
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 15 minutes. (During the monitor)
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 21
Inspection conditions
  • Intake air temperature: More than -10°C (14°F)
  • Engine coolant temperature: More than 0°C (32°F)
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle for 6 minutes. (During the monitor)
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.

 
 
PATTERN 22
Inspection conditions
  • Engine coolant temperature: More than 0°C (32°F) <Manifold absolute pressure sensor monitor>
  • Fuel amount at engine start: Less than 80 % <Fuel tank pressure sensor monitor>
Test procedure
  1. Start the engine with all the accessories switched OFF.
  2. Let the engine idle at the engine speed less than 1,000 r/min for 15 seconds. (During the monitor)
  3. Turn the ignition switch to "LOCK" (OFF) position.
  4. Start the engine and do Steps 1 to 3 again.
  5. Confirm that the diagnostic trouble code (DTC) is not output.
 
 
SYSTEM READINESS TEST STATUS
 
 
PURPOSE
The Readiness function (also referred to as I/M Readiness or I/M Flags) indicates if a full diagnostic check has been "Completed" (is "Ready") for each non-continuous monitor. Enhanced I/M State Emission Programs will use the Readiness status (Codes) to see if the vehicle is ready for OBD-II testing. "Incomplete" (Not Ready) codes will be one of the triggers for I/M failure.
 
 
OVERVIEW
The ECM monitors the following main diagnosis items and records whether the evaluation was completed or is incomplete. The Readiness Codes are established for the I/M programs, thereby confirming that the vehicles have not been tampered with by erasing the diagnostic trouble code(s) (DTCs) before I/M testing. The Readiness Codes and DTCs can be stored again by disconnecting the battery or by erasing the codes with a scan tool MB991958 (M.U.T.-III sub assembly). For this reason, all the Readiness Codes must be displayed "Complete" before I/M testing.
When the monitors run and complete, the scan tool MB991958 (M.U.T.-III sub assembly) will display the Readiness Codes as "Complete" (General Scan Tools display as "Ready"). When the vehicle is operating normally and the OBD-II Drive Cycle is carried out, the Readiness Codes will be stored as "Complete" on the first drive cycle. For DTCs requiring two drive cycles to detect a fault, the second drive cycle is required to set the Readiness Codes as "Complete" if a fault is detected during the first drive cycle. If the fault is still there after the second drive cycle, a DTC will be stored.
  • Catalyst: P0421
  • Evaporative system: P0442, P0455, P0456
  • Linear air-fuel ratio sensor: P0133
  • Linear air-fuel ratio sensor heater: P0031, P0053
  • Heated oxygen sensor: P0139, P0140
  • Heated oxygen sensor heater: P0037
After all the Readiness Codes are displayed as "Complete", the technician is assured that any DTCs related to the monitor will be displayed if the system has a problem. That is why some State's I/M programs require the Readiness Code as "Complete" before they check for DTCs.
noteAfter a repair is made for a DTC, the technician should drive the OBD-II Drive Cycle checking that the scan tool MB991958 (M.U.T.-III Sub Assembly) displays all the Readiness Codes as "Complete".