OBD-II code · Powertrain (generic, extended)
P2AD2 Throttle/Pedal Position Sensor/Switch B/G Voltage Correlation
The voltage signals of throttle/pedal position channels B and G do not correlate within the calibrated tolerance. One sensor element drifted or harness shows offset between channels.
Is it safe to drive with P2AD2?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor channel B or G drifted
- PossibleHarness offset between channels
Symptoms
- Check engine light on
- Reduced throttle response, possible limp mode
- Hesitation or surging
- Idle too high or too low
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Likely to fail
- Parts involved
- Tps Channel B, Tps Channel G, Ecm
Related codes
- P210EThrottle/Pedal Position Sensor/Switch C/F Voltage Correlation
- P212FThrottle/Pedal Position Sensor/Switch F/G Voltage Correlation
- P2139Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation
- P2140Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation
- P2AD1Throttle/Pedal Position Sensor/Switch C/G Voltage Correlation
- P2AD3Throttle/Pedal Position Sensor/Switch A/G Voltage Correlation
- P2ACFReductant Temperature Sensor B Circuit High
- P2AD0Reductant Temperature Sensor B Circuit Intermittent/Erratic
- P2AD4Intermediate System Voltage Low
- P2AD5Intermediate System Voltage High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.