P2135
DTC P2135: Throttle Position Sensor (main and sub) Range/Performance ProblemTHROTTLE POSITION SENSOR (MAIN AND SUB) RANGE/PERFORMANCE PROBLEM CIRCUIT
- Refer to, DTC P0122 - Throttle Position Sensor (main) Circuit.
- Refer to, DTC P0222 - Throttle Position Sensor (sub) Circuit.
CIRCUIT OPERATION
- Refer to, DTC P0122 - Throttle Position Sensor (main) Circuit.
- Refer to, DTC P0222 - Throttle Position Sensor (sub) Circuit.
TECHNICAL DESCRIPTION
- ECM
DESCRIPTIONS OF MONITOR METHODS
Detect malfunction if the relation between throttle position sensor (main) and throttle position sensor (sub) is wrong.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)
Other Monitor (There is no temporary DTC stored in memory for the item monitored)
- Not applicable
Sensor (The sensor below is determined to be normal)
- Mass airflow sensor
DTC SET CONDITIONS
Logic Flow Chart:
Logic Flow Chart
Check Conditions
- Ignition switch is "ON" position.
- Throttle position sensor (main) output voltage is between 0.35 and 2.5 volts.
- Throttle position sensor (sub) output voltage is between 2.25 and 4.8 volts.
Judgement Criteria
- Voltage obtained with the formula given below is 0.3 volt or higher for 0.5 second: throttle position sensor (main) output voltage - [throttle position sensor (sub) output voltage] - 2 volts
DTC SET CONDITIONS
Logic Flow Chart:
Logic Flow Chart
Check Conditions
- Ignition switch is "ON" position.
- Throttle position sensor (main) output voltage is between 2.5 and 4.8 volts.
- Throttle position sensor (sub) output voltage is higher than 2.25 volts.
Judgement Criteria
- Throttle position sensor (sub) output voltage is 4.2 volts or lower.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle -Procedure 6 - Other Monitor. OBD-II Drive Cycle Pattern Lists
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are:)
- Throttle position sensor failed.
- Shorted throttle position sensor circuit, or connector damage.
- ECM failed.
- PCM failed.
DIAGNOSIS
Required Special Tools:
- MB991958: Scan Tool (MUT-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: USB Cable
- MB991911: Main Harness B
STEP 1. Check harness connector B-03 at throttle position sensor and harness connector C-139 at ECM
Q: Is the harness connector in good condition?
YES: Go to Step 2.
NO: Repair or replace it. Refer to Harness Connector Inspection. Then go to Step 5.
STEP 2. Check for short circuit to ground between throttle position sensor connector B-03 (terminal No. 4) and ECM connector C-139
Q: Is the harness wire in good condition?
YES: Go to Step 3.
NO: Repair it. Then go to Step 5.
STEP 3. Check for short circuit to ground between throttle position sensor connector B-03 (terminal No. 6) and ECM connector C-139
Q: Is the harness wire in good condition?
YES: Go to Step 4.
NO: Repair it. Then go to Step 5.
STEP 4. Replace the throttle body assembly.
1. Replace the throttle body assembly.
2. Turn the ignition switch to the "ON" position.
3. After the DTC has been deleted, read the DTC again.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is DTC P2135 set?
YES: Replace the ECM or PCM. Then go to Step 5.
NO: The procedure is complete.
STEP 5. Using scan tool MB991958, read the diagnostic trouble code (DTC).
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.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. After the DTC has been deleted, read the DTC again.
4. Turn the ignition switch to the "LOCK"(OFF) position.
Q: Is DTC P2135 set?
YES: Retry the troubleshooting.
NO: The inspection is complete.