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DTC P2135: Throttle
Position Sensor (main and sub) Range/Performance Problem
THROTTLE POSITION SENSOR (main and sub) RANGE/PERFORMANCE PROBLEM CIRCUIT
- Refer to DTC P0122 -
Throttle Position Sensor
(main) Circuit Low Input
.
- Refer to DTC P0222 -
Throttle Position Sensor (sub) Circuit Low
Input .
CIRCUIT OPERATION
- Refer to DTC P0122 -
Throttle Position Sensor
(main) Circuit Low Input .
- Refer to DTC P0222 -
Throttle Position Sensor (sub) Circuit Low
Input .
TECHNICAL DESCRIPTION
- ECM checks the throttle position sensor output signal
characteristics for abnormal conditions.
DESCRIPTIONS OF MONITOR METHODS
Detect malfunction if the relation between throttle position
sensor (main) and throttle position sensor (sub) is wrong.
MONITOR EXECUTION
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC stored in memory
for the item monitored below)
Sensor (The sensor below is determined to be normal)
DTC SET CONDITIONS <Range/Performance problem-relation between
main and sub>
Logic Flow Chart
Check Conditions
- The target output voltage of the throttle position sensor is 0.9 volt or less.
- Throttle position sensor (main) output voltage is between 0.2 and 4.8 volts.
- Throttle position sensor (sub) output voltage is between 0.2 and 4.8 volts.
- Battery positive voltage is higher than 8.3 volts.
Judgement Criterion
- Voltage obtained with the formula given below is 0.3 volt or higher for 0.3 second: [throttle
position sensor (main) voltage -
throttle position sensor (sub) voltage]
| note |
The throttle position sensor voltage used for the judgement is converted into the throttle position
sensor voltage for the internal processing by the ECM.
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Logic Flow Chart
Check Conditions
- Throttle position sensor (main) output voltage is between 0.2 and 4.8 volts.
- Throttle position sensor (sub) output voltage is between 0.2 and 4.8 volts.
Judgement Criterion
- For 0.3 second, the sum of the output voltage of the throttle position sensors (main)
and (sub) is 4.5 V or less, or 5.5 V or more.
OBD-II DRIVE CYCLE PATTERN
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
- Throttle position sensor failed.
- Harness damage in throttle position sensor circuit or connector damage.
- ECM failed.
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Required Special Tools:
- MB991958: Scan tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991910: Main Harness A
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STEP 1. Check harness connector B-10 at throttle position sensor
for damage.
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Q.
Is the harness connector in good condition?
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 Go to Step 2.
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 Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection .
Then go to Step 11.
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STEP 2. Check the continuity at throttle position sensor harness side
connector B-10.
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(1)Disconnect the connector B-10 and measure at the harness side.
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(2)Measure the continuity between terminal No. 3 and ground.
Q.
Does continuity exist?
Go to Step 6.
Go to Step 3.
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STEP 3. Check harness connector B-108 at ECM for damage.
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Q.
Q: Is the harness connector in good condition?
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Go to Step 4.
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Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection .
Then go to Step 11.
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STEP 4. Check for harness damage between throttle position sensor
connector B-10 (terminal No. 3) and ECM connector B-108 (terminal No. 13).
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Q.
Is the harness wire in good condition?
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Go to Step 5.
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Repair it. Then go to Step 11.
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STEP 5. Using scan tool MB991958, read the diagnostic trouble code
(DTC).
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| caution |
To prevent damage to scan tool MB991958, always turn the ignition switch to
the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991958.
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(1)Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to the "ON" position.
(3)Erase the DTC.
(4)Depress the accelerator pedal fully for a few seconds.
(5)Check the DTC.
(6)Turn the ignition switch to the "LOCK" (OFF) position.
Q.
Is DTC P2135 set?
Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP
42B, Diagnosis -
ID Code Registration Judgment Table <Vehicles with KOS> or
GROUP 42C, Diagnosis -
ID Codes Registration Judgment Table <Vehicles with WCM> .
Then go to Step 11.
It can be assumed that this malfunction is intermittent. Refer to GROUP 00, How
to Use Troubleshooting/Inspection Service Points -
How to Cope with Intermittent Malfunctions .
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STEP 6. Check harness connector B-108 at ECM for damage.
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Q.
Is the harness connector in good condition?
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Go to Step 7.
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Repair or replace it. Refer to GROUP 00E, Harness Connector Inspection .
Then go to Step 11.
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STEP 7. Check for harness damage between throttle position sensor
connector B-10 (terminal No. 5) and ECM connector B-108 (terminal No. 12).
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Q.
Is the harness wire in good condition?
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Go to Step 8.
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Repair it. Then go to Step 11.
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STEP 8. Check for harness damage between throttle position sensor
connector B-10 (terminal No. 4) and ECM connector B-108 (terminal No. 10).
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Q.
Is the harness wire in good condition?
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Go to Step 9.
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Repair it. Then go to Step 11.
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STEP 9. Check for harness damage between throttle position sensor
connector B-10 (terminal No. 6) and ECM connector B-108 (terminal No. 11).
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Q.
Is the harness wire in good condition?
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Go to Step 10.
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Repair it. Then go to Step 11.
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STEP 10. Replace the throttle body assembly.
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(1)Replace the throttle body assembly.
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(2)Turn the ignition switch to the "ON" position.
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(4)Depress the throttle fully for a few seconds.
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(6)Turn the ignition switch to the "LOCK" (OFF) position.
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Replace the ECM. When the ECM is replaced, register the ID code. Refer to GROUP
42B, Diagnosis -
ID Code Registration Judgment Table <Vehicles with KOS> or
GROUP 42C, Diagnosis -
ID Codes Registration Judgment Table <Vehicles with WCM> .
Then go to Step 11.
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The inspection is complete.
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STEP 11. Using scan tool MB991958, read the diagnostic trouble code
(DTC).
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| caution |
To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK"
(OFF) position before connecting or disconnecting scan tool MB991958.
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(1)Connect scan tool MB991958 to the data link connector.
(2)Turn the ignition switch to the "ON" position.
(3)Erase the DTC.
(4)Depress the throttle fully for a few seconds.
(5)Check the DTC.
(6)Turn the ignition switch to the "LOCK" (OFF) position.
Q.
Is DTC P2135 set?
Retry the troubleshooting.
The inspection is complete.
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