Powertrain
generic / SAE
P2135
Throttle/Pedal Position Sensor "A"/"B" Voltage Correlation
The two redundant throttle position sensors on the throttle body disagree by more than allowed. Distinct from P2138 which monitors the pedal pair — P2135 monitors the throttle-body pair on drive-by-wire systems.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number1 / 35
Possible causes
- Throttle position sensor track worn high
- Corrosion on throttle body connector medium
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 120–600 €
- Estimated time: 0.5–2 h
- Component: throttle position sensor
- Component: throttle body
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012