What does code P1286 mean?

Q: What does code P1286 mean?

Accelerator Pedal Position (APP) Sensor 3 Performance. P1286 on GM vehicles means the engine control module (ECM) has detected an implausible or out-of-range signal from accelerator pedal position (APP) sensor 3, which is one of the redundant sensors inside the drive-by-wire pedal assembly. The ECM compares the three APP sensor signals against each other and against expected values, and it sets this code when sensor 3's voltage or calculated position does not agree with the other two sensors or falls outside the programmed limits.

DTC codes / GM codes / P1286

P1286 · GMAccelerator Pedal Position (APP) Sensor 3 Performance

P1286 on GM vehicles means the engine control module (ECM) has detected an implausible or out-of-range signal from accelerator pedal position (APP) sensor 3, which is one of the redundant sensors inside the drive-by-wire pedal assembly. The ECM compares the three APP sensor signals against each other and against expected values, and it sets this code when sensor 3's voltage or calculated position does not agree with the other two sensors or falls outside the programmed limits.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.