DTC Advanced Diagnostics: P2135 (2.0L Engine) (2024 2025)
DTC P2135 : Throttle Position (TP) Sensor A/B Incorrect Voltage Correlation
General Description
The powertrain control module (PCM) monitors the throttle position (TP) sensor A circuit and the throttle position (TP) sensor B circuit. In order to provide electrical diagnostics the output voltage of both sensors are continuously monitored. If the absolute difference between the actual throttle angle calculated based on the voltages from TP sensor A and TP sensor B is a specified value for a specified time, the PCM detects a malfunction and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous |
| Sequence | None |
| Duration | 0.5 seconds or more |
| DTC Type | One drive cycle, MIL on |
Enable Conditions
| Condition | |
|---|---|
| State of the engine | Running |
Malfunction Threshold
The absolute difference between the actual throttle angle calculated based on the voltages from TP sensor A and TP sensor B is more than 5 % to 6.25 %* for at least 0.14 seconds.
*: Depending on the throttle opening angle
Possible Cause
The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- Throttle body failure (TP sensor A/B)
- PCM internal circuit failure
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, the freeze data, and the on-board snapshot are stored in the PCM memory.
Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, the freeze data, and the on-board snapshot can be cleared with the scan tool clear command.