P2135 – Throttle/Pedal Position Sensor A/B Voltage Correlation
Description
The ECM detects inconsistent voltage signals between TPS/APP sensor A and B, which prevents accurate throttle control.
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View Recommended ScannersSymptoms
- Limp mode
- Poor acceleration
- Unstable idle
- No throttle response
Causes
- Faulty TPS/APP sensors
- Wiring faults
- Throttle body failure
- PCM/ECM signal error
Diagnosis
- Check TPS/APP sensor voltages
- Inspect wiring
- Test throttle body movement
- Scan for related ETC codes
Repair
- Replace TPS/APP sensors
- Replace throttle body
- Repair wiring
- Replace PCM/ECM if needed
