13A-DIAGNOSTIC FUNCTION

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 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 power supply mode of the electric motor switch is ON, the indicator lamp should be illuminated. When the electric motor unit starts, the indicator lamp should be extinguished.

note	When the PHEV-ECU detects malfunctions related to the PHEV, 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)

DTC	ITEM
P0010	Engine oil control valve circuit
P0011	Variable valve timing system target error
P0016	Crankshaft/camshaft position sensor phase problem
P0031	Linear air-fuel ratio sensor heater control circuit low
P0032	Linear air-fuel ratio sensor heater control circuit high
P0037	Heated oxygen sensor (rear) heater control circuit low
P0038	Heated oxygen sensor (rear) heater control circuit high
P0053	Linear air-fuel ratio sensor heater resistance
P0068^*1	Mass airflow sensor plausibility
P0069	Abnormal correlation between manifold absolute pressure sensor and barometric pressure sensor
P00FE	Evaporative emission system fuel tank vapor line restricted/blocked
P0102^*1	Mass airflow circuit low input
P0103^*1	Mass airflow circuit high input
P0106^*1	Manifold absolute pressure circuit range/performance problem
P0107^*1	Manifold absolute pressure circuit low input
P0108^*1	Manifold absolute pressure circuit high input
P0111	Intake air temperature circuit range/performance problem
P0112^*1	Intake air temperature circuit low input
P0113^*1	Intake air temperature circuit high input
P0116	Engine coolant temperature circuit range/performance problem
P0117^*1	Engine coolant temperature circuit low input
P0118^*1	Engine coolant temperature circuit high input
P011B	Engine coolant temperature /Intake air temperature correlation
P0121^*1	Throttle position sensor (main) plausibility
P0122^*1	Throttle position sensor (main) circuit low input
P0123^*1	Throttle position sensor (main) circuit high input
P0125	Insufficient coolant temperature for closed loop fuel control
P0128	Coolant thermostat (coolant temperature below thermostat regulating temperature)
P0130	Linear air-fuel ratio sensor circuit
P0131	Linear air-fuel ratio sensor circuit low voltage
P0132	Linear air-fuel ratio sensor circuit high voltage
P0133	Linear air-fuel ratio sensor circuit slow response
P0134	Linear air-fuel ratio sensor circuit no activity detected
P0137	Heated oxygen sensor (rear) circuit low voltage
P0138	Heated oxygen sensor (rear) circuit high voltage
P0139	Heated oxygen sensor (rear) circuit slow response
P0140	Heated oxygen sensor (rear) circuit no activity detected
P014C	Linear air-fuel ratio sensor circuit slow response - rich to lean
P014D	Linear air-fuel ratio sensor circuit slow response - lean to rich
P015A	Linear air-fuel ratio sensor circuit delayed response - rich to lean
P015B	Linear air-fuel ratio sensor circuit delayed response - lean to rich
P0171	System too lean
P0172	System too rich
P0221^*1	Throttle position sensor (sub) plausibility
P0222^*1	Throttle position sensor (sub) circuit low input
P0223^*1	Throttle position sensor (sub) circuit high input
P0261^*1	Injector circuit low input - cylinder 1
P0262^*1	Injector circuit high input - cylinder 1
P0264^*1	Injector circuit low input - cylinder 2
P0265^*1	Injector circuit high input - cylinder 2
P0267^*1	Injector circuit low input - cylinder 3
P0268^*1	Injector circuit high input - cylinder 3
P0270^*1	Injector circuit low input - cylinder 4
P0271^*1	Injector circuit high input - cylinder 4
P0300^*2	Random/multiple cylinder misfire detected
P0301^*2	Cylinder 1 misfire detected
P0302^*2	Cylinder 2 misfire detected
P0303^*2	Cylinder 3 misfire detected
P0304^*2	Cylinder 4 misfire detected
P0327	Knock sensor circuit low
P0328	Knock sensor circuit high
P0335^*1	Crankshaft position sensor circuit
P0340^*1	Camshaft position sensor circuit
P0400	Exhaust gas recirculation system
P0421	Warm up catalyst efficiency below threshold
P043E	Reference orifice low flow
P043F	Reference orifice high flow
P0441	Evaporative emission control system incorrect purge flow
P0450	Evaporative emission system pressure sensor malfunction
P0451	Evaporative emission system pressure sensor range/performance
P0452	Evaporative emission system pressure sensor low input
P0453	Evaporative emission system pressure sensor high input
P0454	Evaporative emission system pressure sensor circuit intermittent
P0458	Evaporative emission control system purge control valve circuit low input
P0459	Evaporative emission control system purge control valve circuit high input
P0461	Fuel level sensor circuit range/performance
P0462	Fuel level sensor circuit low input
P0463	Fuel level sensor circuit high input
P0489	EGR valve (stepper motor) circuit malfunction (ground short)
P0490	EGR valve (stepper motor) circuit malfunction (battery short)
P04DF	Evaporative emission control system purge control valve stuck open
P04E0	Evaporative emission control system purge control valve stuck close
P04EC	Evaporative emission control system leak detected (gross leak from fuel tank)
P04ED	Evaporative emission control system leak detected (gross leak from evaporative emission canister)
P04EE	Evaporative emission control system leak detected (0.5mm leak from fuel tank)
P04EF	Evaporative emission control system leak detected (0.5mm leak from evaporative emission canister)
P0500^*1	Vehicle speed signal malfunction
P050B	Ignition timing retard insufficient
P0602^*1	Control module programming error
P0604^*1	Internal control module random access memory (RAM) error
P0606	Engine control module main processor malfunction
P060B^*1	Internal control module A/D processing performance problem
P061C^*1	Internal control module engine RPM performance problem
P062F^*1	Internal control module EEPROM error
P0630^*1	Vehicle Identification Number (VIN) malfunction
P0638^*1	Throttle actuator control motor circuit range/performance problem
P0642^*1	Throttle position sensor power supply
P0657^*1	Throttle actuator control motor relay circuit malfunction
P1238^*1	Mass airflow sensor plausibility (torque monitor)
P1401	Evaporative emission leak detection pump pulsation
P1445	Bypass valve circuit low input
P1446	Bypass valve circuit high input
P1450	Bypass valve stuck open
P1451	Bypass valve stuck closed
P1469	Abnormal correlation between canister pressure sensor and manifold absolute pressure sensor
P1603^*1	Battery backup line malfunction
P2096	Post catalyst fuel trim system too lean
P2097	Post catalyst fuel trim system too rich
P2100^*1	Throttle actuator control motor circuit (open)
P2101^*1	Throttle actuator control motor magneto malfunction
P2135^*1	Throttle position sensor (main and sub) range/performance problem
P219A	Air-fuel ratio imbalance
P2228^*1	Barometric pressure circuit low input
P2229^*1	Barometric pressure circuit high input
P2237	Linear air-fuel ratio sensor positive current control circuit/open
P2243	Linear air-fuel ratio sensor reference voltage circuit/open
P2251	Linear air-fuel ratio sensor negative current control circuit/open
P2252	Heated oxygen sensor offset circuit low voltage
P2253	Heated oxygen sensor offset circuit high voltage
P2419	Fuel tank solenoid valve control circuit low
P2420	Fuel tank solenoid valve control circuit high
P2450	Fuel tank solenoid valve stuck open
P2451	Fuel tank solenoid valve stuck close
P24B9	Canister pressure sensor noise
P24BA	Canister pressure sensor circuit low input
P24BB	Canister pressure sensor circuit high input
P24BE	Switching valve control circuit low
P24BF	Switching valve control circuit high
P24C0	Switching valve stuck close or evaporative emission leak detection pump stuck
P24C1	Switching valve stuck open
P24D5	Fuel tank pressure sensor stuck
P24D6	Fuel tank pressure sensor noise
P24D7	Fuel tank pressure sensor circuit low input
P24D8	Fuel tank pressure sensor circuit high input
P2610	PCM engine off timer performance
U0121^*1	ASC-ECU time-out
U0141^*1	ETACS-ECU time-out
U0293^*1	PHEV-ECU time-out
U0594^*1	Invalid data received from PHEV-ECU
U1180^*1	Combination meter time-out

note	If 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 (M.U.T.-IIISE) and the ECM is impossible. In this case, the diagnostic trouble code cannot be read.

note

After the ECM has detected a malfunction, the Malfunction Indicator Lamp (SERVICE ENGINE SOON or Check Engine Lamp) illuminates when the electric motor unit is next started 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.

note	The 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) is illuminated at the time.
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 electric motor unit start.

note

Even 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 electric motor unit start to the time of the next electric motor unit 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.-IIISE)

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)

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

1. Ensure that the power supply mode of the electric motor switch is OFF.

2. Start up the personal computer.

3. Connect special tool MB992747/MB992748 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.

note	When 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>

note	When special tool MB991824 is energized, special tool MB991824 indicator light will be illuminated in a green color.

7. Start the M.U.T.-IIISE system on the personal computer.

note	Disconnecting scan tool (M.U.T.-IIISE) is the reverse of the connecting sequence, making sure that the power supply mode of the electric motor switch is OFF.

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)

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

note	If the diagnostic trouble code (DTC) of the PHEV-ECU had been erased, the DTC of the engine control module (ECM) had also been erased at the same time.

1. Connect scan tool (M.U.T.-IIISE) to the data link connector.

2. Turn on the power supply mode of the electric motor switch.

3. Select "STV".

4. Select "MFI".

5. Select "Diagnostic Trouble Code".

6. If a DTC is set, it is shown.

7. 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)

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

1. Connect scan tool (M.U.T.-IIISE) to the data link connector.

2. Turn on the power supply mode of the electric motor switch.

3. Select "STV".

4. Select "MFI".

5. Select "Data List".

6. 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)

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

1. Connect scan tool (M.U.T.-IIISE) to the data link connector.

2. Turn on the power supply mode of the electric motor switch.

3. Select "STV".

4. Select "MFI".

5. Select "Actuator Test".

6. Choose an appropriate item and select the "OK" button.

HOW TO PERFORM EVAPORATIVE EMISSION SYSTEM COMPONENT 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)

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

1. Connect scan tool (M.U.T.-IIISE) to the data link connector.

2. Turn on the power supply mode of the electric motor switch.

3. Select "STV".

4. Select "MFI".

5. Select "Special Function".

6. Select "Test".

7. 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)

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

1. Connect scan tool (M.U.T.-IIISE) to the data link connector.

2. Turn on the power supply mode of the electric motor switch.

3. Select "CAN bus diagnosis" from the System select screen.

4. 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 sets 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 sets the diagnostic trouble code. On Scan Tool (M.U.T.-IIISE), it is possible to display the set 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

caution

To prevent damage to scan tool (M.U.T.-IIISE), always turn off the power supply mode of the electric motor switch before connecting or disconnecting scan tool (M.U.T.-IIISE).

1. Connect scan tool (M.U.T.-IIISE) to the data link connector.

2. Turn on the power supply mode of the electric motor switch.

3. Select "STV".

4. Select "MFI".

5. Select "Special Function" from MFI screen.

6. Select "Provisional DTCs" from Special Function screen.

PERMANENT DTC

The permanent DTC(PDTC) is set 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 sets the appropriate DTC as the permanent DTC in the EEPROM concurrently. The usual DTC is set 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 12V starter battery terminal or erasing with the scan tool (M.U.T.-IIISE). 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 set. If the DTC is set, perform the DTC troubleshooting, then repair the DTC.

2. Carry out the Step 2 to 9 of DRIVE CYCLE PATTERN 3. (Refer to OBD-II DRIVE CYCLE for the drive cycle pattern.)

However, when deleting the diagnostic trouble code (DTC) P0010, P0011, P0111, P0133, P0139, P0140, P0335, P0400, P0421, P043E, P043F, P0500, P1469, P219A, P2451, P24B9 or P24D6, carry out the Step 2 to 12 of DRIVE CYCLE PATTERN 4. (Refer to OBD-II DRIVE CYCLE for the drive cycle pattern.)

3. 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 set, repair the DTC. Try to erase the permanent DTC again (from Step 1 to 2). If the malfunction code is not set, the drive cycle pattern (Step 2) 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 ID	STANDARDIZED / MANUFACTURER DEFINED TEST ID	MONITORING ITEM	SIMPLE TECHNICAL DESCRIPTION	CONVERSION COEFFICIENT IN USING GENERAL SCAN TOOL
01	81	WR-HO2S 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
	94	WR-HO2S Monitor Bank 1 - Sensor 1 Lean to Rich Slow Response	ECM checks the rich/lean ratio of the linear air-fuel ratio sensor in order to monitor the response of the linear air-fuel ratio sensor.	× 0.00390625 Ratio
	95	WR-HO2S Monitor Bank 1 - Sensor 1 Rich to Lean Slow Response	ECM checks the lean/rich ratio of the linear air-fuel ratio sensor in order to monitor the response of the linear air-fuel ratio sensor.	× 0.00390625 Ratio
	96	WR-HO2S Monitor Bank 1 - Sensor 1 Lean to Rich Delay	ECM checks the lean to rich delay time of the linear air-fuel ratio sensor in order to monitor the response of the linear air-fuel ratio sensor.	× 1 msec
	97	WR-HO2S Monitor Bank 1 - Sensor 1 Rich to Lean Delay	ECM checks the rich to lean delay time of the linear air-fuel ratio sensor in order to monitor the response of the linear air-fuel ratio sensor.	× 1 msec
	9B	WR-HO2S Monitor Bank 1 - Sensor 1 Target Air-Fuel Adjustment Value for Lean to Rich Slow Response	ECM checks the target air-fuel adjustment value in order to monitor the response of the linear air-fuel ratio sensor.	× 0.003052%
	9C	WR-HO2S Monitor Bank 1 - Sensor 1 Target Air-Fuel Adjustment Value for Rich to Lean Slow Response	ECM checks the target air-fuel adjustment value in order to monitor the response of the linear air-fuel ratio sensor.	× 0.003052%
	9D	WR-HO2S Monitor Bank 1 - Sensor 1 Target Air-Fuel Adjustment Value for Lean to Rich Delay	ECM checks the target air-fuel adjustment value in order to monitor the response of the linear air-fuel ratio sensor.	× 0.003052%
	9E	WR-HO2S Monitor Bank 1 - Sensor 1 Target Air-Fuel Adjustment Value for Rich to Lean Delay	ECM checks the target air-fuel adjustment value in order to monitor the response of the linear air-fuel ratio sensor.	× 0.003052%
02	08	Oxygen 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.	× 0.122 mV
	82	Oxygen 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
	88	Oxygen 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.	× 1 msec
	98	Oxygen Sensor Monitor Bank 1 - Sensor 2 Rich To Lean Sensor Switch Air Quantity	ECM checks the rich to lean switching air quantity of the heated oxygen sensor (rear) in order to monitor the response of the heated oxygen sensor (rear).	× 0.01 g
21	83	Catalyst 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
31	84	EGR Monitor Difference of manifold pressure before and after EGR activation for Insufficient detected	ECM monitors the operation of EGR system by the pressure difference of intake manifold between before and after introduction of EGR using the manifold absolute pressure sensor.	× 0.0117 kPa
35	89	VVT Monitor Bank 1 (L4-IN) 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°
39	91	EVAP Monitor (Cap off) Pressure drop during de-pressurizing in fuel tank side	ECM opens the fuel tank solenoid valve. Using the evaporative emission leak detection pump, ECM decreases the pressure in the fuel tank and purge line. Using the canister pressure sensor, ECM measures the pressure. ECM may monitor leaks in the fuel tank and purge line, which depends on the conditions that can decrease the pressure or cannot do it. The conditions are determined from "Reference pressure × Predetermined coefficient", which is measured by the evaporative leak check module.	× 0.0117 kPa
	92	EVAP Monitor (Cap off) Pressure drop during de-pressurizing in canister side	ECM closes the bypass valve. Using the evaporative emission leak detection pump, ECM decreases the pressure in the evaporative emission canister. Using the canister pressure sensor, ECM measures the pressure. ECM may monitor leaks in the evaporative emission canister, which depends on the conditions that can decrease the pressure or cannot do it. The conditions are determined from "Reference pressure × Predetermined coefficient", which is measured by the evaporative leak check module.	× 0.0117 kPa
	A3	EVAP Monitor (Cap off) Pressure change rate during de-pressurizing in fuel tank side	ECM monitors the ratio of the pressure after depressurizing the canister and the purge line and the pressure after depressurizing only the canister.	× 0.01
3C	91	EVAP Monitor (0.020") Pressure drop during de-pressurizing in fuel tank side	ECM opens the fuel tank solenoid valve. Using the evaporative emission leak detection pump, ECM decreases the pressure in the fuel tank and purge line. Using the canister pressure sensor, ECM measures the pressure. ECM may monitor leaks in the fuel tank and purge line, which depends on the conditions that can decrease the pressure or cannot do it. The conditions are determined from reference pressure, which is measured by the evaporative leak check module.	× 0.0117 kPa
	92	EVAP Monitor (0.020") Pressure drop during de-pressurizing in canister side	ECM closes the bypass valve. Using the evaporative emission leak detection pump, ECM decreases the pressure in the evaporative emission canister. Using the canister pressure sensor, ECM measures the pressure. ECM may monitor leaks in the evaporative emission canister, which depends on the conditions that can decrease the pressure or cannot do it. The conditions are determined from "Reference pressure × Predetermined coefficient", which is measured by the evaporative leak check module.	× 0.0117 kPa
	A3	EVAP Monitor (0.020") Pressure change rate during de-pressurizing in fuel tank side	ECM monitors the ratio of the pressure after depressurizing the canister and the purge line and the pressure after depressurizing only the canister.	× 0.01
3D	93	Purge Flow Monitor Pressure drop during airtight condition	Using the canister pressure sensor, the ECM measures the pressure.	× 0.0117 kPa
41	86	WR-HO2S Heater Monitor Bank1 - Sensor1 Heater Monitoring Current	ECM checks the amperage of the linear air-fuel ratio sensor heater.	× 0.001 A
81	99	Fuel System Monitor Bank1 A/F Signal Noise Counts In Port Fuel Injection Mode	The ECM counts the air-fuel signal noise to check the air-fuel imbalance between the cylinders.	× 1 count
A2	0B	Mis-Fire Cylinder 1 Data EWMA Misfire Counts For Previous Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for previous driving cycles.	× 1 count
A2	0C	Mis-Fire Cylinder 1 Data Misfire Counts For Last/Current Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycles.	× 1 count
A3	0B	Mis-Fire Cylinder 2 Data EWMA Misfire Counts For Previous Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for previous driving cycles.	× 1 count
A3	0C	Mis-Fire Cylinder 2 Data Misfire Counts For Last/Current Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycles.	× 1 count
A4	0B	Mis-Fire Cylinder 3 Data EWMA Misfire Counts For Previous Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for previous driving cycles.	× 1 count
A4	0C	Mis-Fire Cylinder 3 Data Misfire Counts For Last/Current Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycles.	× 1 count
A5	0B	Mis-Fire Cylinder 4 Data EWMA Misfire Counts For Previous Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. EWMA (Exponential Weighted Moving Average) misfire counts for previous driving cycles.	× 1 count
A5	0C	Mis-Fire Cylinder 4 Data Misfire Counts For Last/Current Driving Cycles	ECM monitors angular acceleration of crankshaft and detect misfire. Misfire counts for last/current driving cycles.	× 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.

note	When 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.

note

When the monitored test results are erased by the 12V starter 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 12V starter battery, the diagnostic results are memorized even if the power supply mode of the electric motor switch is turned off. The diagnostic trouble codes will, however, be erased when the 12V starter battery terminal or the ECM connector is disconnected. In addition, the diagnostic trouble code can also be erased by turning on the power supply mode of the electric motor switch and sending the diagnostic trouble code erase signal from scan tool (M.U.T.-IIISE) to the ECM.

note

If the sensor connector is disconnected with the power supply mode of the electric motor 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 diagnostic items are all indicated sequentially from the smallest code number. The ECM records the engine operating condition when the diagnostic trouble code is set. 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:

note

If 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.

note	As for Diagnostic trouble code P1603, "Freeze-frame" data is not memorized.

Freeze Frame Data for M.U.T.-IIISE

ITEM NO.	M.U.T.-IIISE SCAN TOOL DISPLAY	DATA ITEM	UNIT or STATE
1	Odometer	Odometer	km or mile
2	Ignition cycle (Warm up cycle)	Ignition cycle (Warm up cycle)	-
4	Accumulated minute	Accumulated minute*	min

note	*: Accumulated time of current malfunction from time point when malfunction is detected.

Freeze Frame Data (OBD) for M.U.T.-IIISE

ITEM NO.	M.U.T.-IIISE SCAN TOOL DISPLAY	DATA ITEM	UNIT or STATE
AA	Airflow sensor	Mass airflow sensor	g/s
AB	TP sensor (main)	Throttle position sensor (main)	%
BA	Target EGR	Target EGR stepper motor	%
BB	Barometric pressure sensor	Barometric pressure sensor	kPa or in.Hg
BC	Relative TP sensor	Relative throttle position sensor	%
BD	TP sensor (sub)	Throttle position sensor (sub)	%
C0	Fuel system status (bank1)	Fuel control system status	Is not applicable for this engine, therefore this data is not used for the check.
C1*	Fuel system status (bank2)	Fuel control system status (bank2)	N/A
C2	Calculated load value	Calculated load value	%
C3	ECT sensor	Engine coolant temperature sensor	°C or °F
C4	Short term fuel trim (bank1)	Short term fuel trim	%
C6	Long term fuel trim (bank1)	Long term fuel trim	%
CC	MAP sensor	Manifold absolute pressure sensor	kPa or in.Hg
CD	Crankshaft position sensor	Crankshaft position sensor	r/min
CE	Vehicle speed	Vehicle speed	km/h or mph
CF	Spark advance	Spark advance	°CA
D0	Intake air temperature sensor 1	Intake air temperature sensor	°C or °F
D1	Time since engine running	Time since engine running	sec
D6	EVAP. emission purge SOL. duty	Evaporative emission purge solenoid duty	%
D7	Fuel level gauge	Fuel level gauge	%
D8	Power supply voltage	Power supply voltage	V
D9	Absolute load value	Absolute load value	%
DA	Target equivalence ratio	Target equivalence ratio	-
DB	Intake air temperature sensor 1	Intake air temperature sensor (ambient air temperature)	°C or °F
DC	Throttle actuator	Throttle actuator control motor	%
DD	Relative APP sensor	Relative accelerator pedal position sensor	%
122	Type of fuel	Type of fuel	Hybrid Gasoline (Hybrid vehicle using gasoline engine) Hybrid Battery (Hybrid vehicle using main drive lithium-ion battery) Hybrid MIX (Hybrid vehicle using main drive lithium-ion battery and combustion engine) Hybrid Reg. Mode (Hybrid vehicle in regeneration mode)
242	Fuel tank differential PRS. SNSR	Fuel tank differential pressure sensor	Pa
300	Fuel system status A:OL	Fuel control system status: Open loop	Yes/No
301	Fuel system status A:CL	Fuel control system status: Closed loop	Yes/No
302	Fuel system status A:OL-Drive	Fuel control system status: Open loop-drive condition	Yes/No
303	Fuel system status A:OL-Fault	Fuel control system status: Open loop-DTC set	Yes/No
304	Fuel system status A:CL-Fault	Fuel control system status: Closed loop-heated oxygen sensor (rear) failed	Yes/No
305*	Fuel system status A:OL B2	Fuel control system status: Open loop (bank2)	No
306*	Fuel system status A:OL-Drive B2	Fuel control system status: Open loop-drive condition (bank2)	No
307*	Fuel system status A:OL-Fault B2	Fuel control system status: Open loop-DTC set (bank2)	No
308*	Fuel system status B:OL	Fuel control system status B: Open loop	No
309*	Fuel system status B:CL	Fuel control system status B: Closed loop	No
310*	Fuel system status B:OL-Drive	Fuel control system status B: Open loop-drive condition	No
311*	Fuel system status B:OL-Fault	Fuel control system status B: Open loop-DTC set	No
312*	Fuel system status B:CL-Fault	Fuel control system status B: Closed loop-heated oxygen sensor (rear) failed	No
313*	Fuel system status B:OL B2	Fuel control system status B: Open loop (bank2)	No
314*	Fuel system status B:OL-Drive B2	Fuel control system status B: Open loop-drive condition (bank2)	No
315*	Fuel system status B:OL-Fault B2	Fuel control system status B: Open loop-DTC set (bank2)	No

note	*: Data items are displayed on scan tool (M.U.T.-IIISE) display, but this engine is not applicable and its data is displayed as "N/A" or "No".

Freeze Frame Data for General Scan Tool

COMMON EXAMPLE of GENERAL SCAN TOOL DISPLAY	PARAMETER IDENTIFICATION (PID)	DESCRIPTION	UNIT or STATE
DTCFRZF	02	DTC that caused required freeze frame data storage	Pxxxx, Uxxxx
FUELSYS A	03	See M.U.T.-IIISE Item No. 300 to No. 307
LOAD_PCT	04	See M.U.T.-IIISE Item No. C2
ECT	05	See M.U.T.-IIISE Item No. C3
SHRTFT 1	06	See M.U.T.-IIISE Item No. C4
LONGFT 1	07	See M.U.T.-IIISE Item No. C6
MAP	0B	See M.U.T.-IIISE Item No. CC
RPM	0C	See M.U.T.-IIISE Item No. CD
VSS	0D	See M.U.T.-IIISE Item No. CE
SPARKADV	0E	See M.U.T.-IIISE Item No. CF
IAT	0F	See M.U.T.-IIISE Item No. D0
MAF	10	See M.U.T.-IIISE Item No. AA
TP	11	See M.U.T.-IIISE Item No. AB
RUNTM	1F	See M.U.T.-IIISE Item No. D1
EGR_PCT	2C	See M.U.T.-IIISE Item No. BA
EVAP_PCT	2E	See M.U.T.-IIISE Item No. D6
FLI	2F	See M.U.T.-IIISE Item No. D7
EVAP_VP	32	See M.U.T.-IIISE Item No. 242
BARO	33	See M.U.T.-IIISE Item No. BB
VPWR	42	See M.U.T.-IIISE Item No. D8
LOAD_ABS	43	See M.U.T.-IIISE Item No. D9
EQ_RAT	44	See M.U.T.-IIISE Item No. DA
TP_R	45	See M.U.T.-IIISE Item No. BC
AAT	46	See M.U.T.-IIISE Item No. DB
TP_B	47	See M.U.T.-IIISE Item No. BD
TAC_PCT	4C	See M.U.T.-IIISE Item No. DC
FUEL_TYP	51	See M.U.T.-IIISE Item No. 122
APP_R	5A	See M.U.T.-IIISE 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 4 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].

caution

Two technicians should always be in the vehicle when carrying out a test.

note	Check that the diagnosis trouble code (DTC) is not set before driving the OBD-II drive cycle. Erase the DTC with scan tool (M.U.T.-IIISE) if it has been set.

DRIVE CYCLE PATTERN LIST

MONITOR ITEM	DIAGNOSTIC TROUBLE CODE (DTC)	PATTERN
Heated oxygen sensor (rear) heater monitor <Readiness test item>	P0037, P0038	1
Heated oxygen sensor (rear) heater monitor <Readiness test item>	P0037, P0038	1
Linear air-fuel ratio sensor heater monitor <Readiness test item>	P0031, P0032
Barometric pressure sensor/Manifold absolute pressure correlation	P0069
Bypass valve monitor	P1445, P1446
Camshaft position sensor monitor	P0340
Canister pressure sensor monitor	P24BA, P24BB
Controller area network (CAN) monitor	U0121, U0141, U0293, U0594, U1180
Crankshaft position sensor monitor	P061C
Engine coolant temperature sensor monitor	P0117, P0118
Evaporative emission purge solenoid monitor	P0458, P0459
Exhaust gas recirculation (EGR) system monitor	P0489, P0490
Fuel level sensor monitor	P0462, P0463
Fuel tank differential pressure sensor monitor	P0451, P0452, P0453
Fuel tank pressure sensor monitor	P24D7, P24D8
Fuel tank solenoid valve monitor	P2419, P2420
Heated oxygen sensor (rear) offset voltage monitor	P2252, P2253
Injector monitor	P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271
Intake air temperature sensor monitor	P0112, P0113
Keep alive memory monitor	P1603
Knock sensor monitor	P0327, P0328
Linear air-fuel ratio sensor monitor	P0130, P0131, P0132, P2237, P2243, P2251
Manifold absolute pressure (MAP) sensor monitor	P0106, P0107, P0108
Mass airflow sensor monitor	P0068, P0102, P0103
Mass airflow sensor/Throttle position sensor monitor	P1238
Switching valve monitor	P24BE, P24BF
Throttle actuator control motor monitor	P2100, P2101
Throttle actuator control motor relay monitor	P0657
Throttle position sensor (main and/or sub) monitor	P2135
Throttle position sensor (main) monitor	P0121, P0122, P0123
Throttle position sensor (sub) monitor	P0221, P0222, P0223
Throttle valve control monitor	P0638
Evaporative emission purge system monitor <Readiness test item>	P0441	2
Linear air-fuel ratio sensor heater monitor <Readiness test item>	P0053
Air-fuel ratio feedback control system monitor	P2096, P2097
Engine coolant temperature sensor monitor	P0116, P0125
Evaporative emission purge solenoid monitor	P04DF
Fuel system monitor	P0171, P0172
Heated oxygen sensor (rear) monitor	P0137, P0138
Ignition timing retard control (cold start strategy) monitor	P050B
Linear air-fuel ratio sensor monitor	P0134
Misfire monitor	P0300, P0301, P0302, P0303, P0304
Variable valve timing system (MIVEC) monitor	P0016
Evaporative emission purge system leakage monitor <Readiness test item>	P04EC, P04ED, P04EE, P04EF	3
Bypass valve monitor	P1450
Engine coolant temperature/Intake air temperature correlation	P011B
Evaporative emission purge solenoid monitor	P04E0
Evaporative leak check pump/Switching valve monitor	P24C0
Evaporative leak check pump monitor	P1401
Fuel tank solenoid valve monitor	P2450
Non-volatile random access memory (NVRAM) monitor	P0602, P0630
Switching valve monitor	P24C1
Thermostat monitor	P0128
Catalytic converter monitor <Readiness test item>	P0421	4
Exhaust gas recirculation (EGR) system monitor <Readiness test item>	P0400
Heated oxygen sensor (rear) monitor <Readiness test item>	P0139, P0140
Linear air-fuel ratio sensor monitor <Readiness test item>	P0133, P014C, P014D, P015A, P015B
Variable valve timing system (MIVEC) monitor <Readiness test item>	P0011
Air-fuel cylinder imbalance monitor	P219A
Bypass valve monitor	P1451
Canister pressure sensor monitor	P1469, P24B9
Crankshaft position sensor monitor	P0335
Evaporative leak check pump/Reference orifice monitor	P043E, P043F
Fuel tank differential pressure sensor monitor	P0450, P0454
Fuel tank pressure sensor monitor	P24D5, P24D6
Fuel tank solenoid valve monitor	P2451
Fuel tank vapor line monitor	P00FE
Intake air temperature sensor monitor	P0111
Variable valve timing system (MIVEC) monitor	P0010
Vehicle speed sensor monitor	P0500
Fuel level sensor monitor	P0461	5

PATTERN 1

Inspection condition

Charging status: 30-70 %

note	For the charging status, check the BMU data list item 1: Charge state(Control) of M.U.T.-IIISE.

Test procedure

note	If the Charging state exceeds 70% during the test, carry out the discharge operation.

Depress the brake pedal, and turn on (READY) the power supply mode of the electric motor switch.
Set the vehicle to CHARGE mode to start the engine.
Let the engine run for 10 seconds or more.
Turn off the power supply mode of the electric motor switch, and wait until MFI relay turns off. (about 30 seconds)
Repeat Steps 1 to 4 for 2 times.
Confirm that the diagnostic trouble code (DTC) is not set.

PATTERN 2

Inspection condition

Charging status: 30-70 %

note	For the charging status, check the BMU data list item 1: Charge state(Control) of M.U.T.-IIISE.

Test procedure

note	If the Charging state exceeds 70% during the test, carry out the discharge operation.

Depress the brake pedal, and turn on (READY) the power supply mode of the electric motor switch.
Set the vehicle to CHARGE mode to start the engine.
Let the engine run for 180 seconds or more.
Turn off the power supply mode of the electric motor switch, and wait until MFI relay turns off. (about 30 seconds)
Repeat Steps 1 to 4 for 2 times.
Confirm that the diagnostic trouble code (DTC) is not set.

PATTERN 3

Drive cycle pattern

Inspection condition

Charging status: 30-70%
note For the charging status, check the BMU data list item 1: Charge state(Control) of M.U.T.-IIISE.
Fuel amount: Less than 85 % <DTC P04EC, P04ED, P04EE, P04EF, P1450, P04E0, P24C0, P1401, P2450, P24C1>

Test procedure

note	If the Charging state exceeds 70% during the test, carry out the discharge operation.

Disconnect the negative 12V starter battery terminal, and then connect the negative 12V starter battery terminal.
Depress the brake pedal, and turn on (READY) the power supply mode of the electric motor switch.
Set the vehicle to CHARGE mode to start the engine.
Continue the vehicle stopped state for more than 3 minutes as it is.
Accelerate until the vehicle speed reaches 48.3 km/h (30 mph) spending 10 seconds.
Drive at a constant speed at 48.3 km/h (30 mph) for more than 6 minutes.
Stop the vehicle spending 10 seconds.
With the brake pedal depressed down, keep the vehicle stopped for 40 seconds or more.
Turn off the power supply mode of the electric motor switch, and wait until MFI relay turns off. (about 30 seconds)
Repeat Steps 2 to 9.
Confirm that the diagnostic trouble code (DTC) is not set.

PATTERN 4

Drive cycle pattern

Inspection condition

Charging status: 30-70%
note For the charging status, check the BMU data list item 1: Charge state(Control) of M.U.T.-IIISE.
Fuel amount: Less than 70 % <DTC P0450>
Fuel amount: Less than 85 % <DTC P1451, P1469, P24B9, P043E, P043F, P0451, P0454, P24D5, P24D6, P2451, P00FE>

Test procedure

note	If the Charging state exceeds 70% during the test, carry out the discharge operation.

Disconnect the negative 12V starter battery terminal, and then connect the negative 12V starter battery terminal.
Depress the brake pedal, and turn on (READY) the power supply mode of the electric motor switch.
Set the vehicle to CHARGE mode to start the engine.
Continue the vehicle stopped state for more than 3 minutes as it is.
Accelerate until the vehicle speed reaches 96.6 km/h (60 mph) spending 20 seconds.
Drive at a constant speed at 96.6 km/h (60 mph) for more than 4 minutes.
Fully release your foot from the accelerator pedal and slow down for 5 seconds. Then stop the vehicle spending 15 seconds.
After continuing the stopped state for more than 5 seconds, accelerate until the vehicle speed reaches 80.5 km/h (50 mph) spending 15 seconds.
Fully release your foot from the accelerator pedal and slow down for 5 seconds. Then stop the vehicle spending 10 seconds.
Repeat Step 8 to 9 for 2 times.
With the brake pedal depressed down, keep the vehicle stopped for 90 seconds or more.
Turn off the power supply mode of the electric motor switch, and wait until MFI relay turns off. (about 30 seconds)
Repeat Steps 2 to 12.
Confirm that the diagnostic trouble code (DTC) is not set.

PATTERN 5

Drive cycle pattern

Inspection conditions

Fuel amount: Less than 85 %
Charging status: 30-70 %
note For the charging status, check the BMU data list item 1: Charge state(Control) of M.U.T.-IIISE.

Test procedure

Disconnect the negative 12V starter battery terminal, and then connect the negative 12V starter battery terminal.
Depress the brake pedal, and turn on (READY) the power supply mode of the electric motor switch.
Set the vehicle to CONTINUOUS IDLING mode to start the engine.
Let the engine idle for 30 seconds.
Accelerate until the vehicle speed reaches 48.3 km/h (30 mph) spending 15 seconds.
Drive at a constant speed at 48.3 km/h (30 mph) for more than 6 minutes.
Stop the vehicle in a safe place.
Let the engine idle for 3 hours.
Turn the ignition switch to the "LOCK" (OFF) position.
Turn off the power supply mode of the electric motor switch, and wait until MFI relay turns off. (about 30 seconds)
Repeat Steps 2 to 10.
Confirm that the diagnostic trouble code (DTC) is not set.

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 set again by disconnecting the 12V starter battery or by erasing the codes with a scan tool (M.U.T.-IIISE). For this reason, all the Readiness Codes must be displayed "Complete" before I/M testing.

When the monitors run and complete, the scan tool (M.U.T.-IIISE) 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 generated as "Complete" on the first drive cycle. For DTCs requiring two drive cycles to detect a fault, the second drive cycle is required to generate 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 set.

Catalyst: P0421
EGR and/or VVT system: P0011, P0400
Evaporative system: P0441, P04EC, P04ED, P04EE, P04EF
Heated oxygen sensor (rear): P0139, P0140
Heated oxygen sensor (rear) heater: P0037, P0038
Linear air-fuel ratio sensor: P0133, P014C, P014D, P015A, P015B
Linear air-fuel ratio sensor heater: P0031, P0032, P0053

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.

note	After a repair is made for a DTC, the technician should drive the OBD-II Drive Cycle checking that the scan tool (M.U.T.-IIISE) displays all the Readiness Codes as "Complete".