P1287 BUICK code possible causes
- Faulty accelerator pedal position (APP)
- Accelerator pedal position harness is open or shorted
- Poor electrical connection in the accelerator pedal position circuit
How is the P1287 BUICK code repaired?
Start by checking the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
What are the possible symptoms of P1287 BUICK code?
- Engine light on (or service engine soon warning light)
What does P1287 BUICK code mean?
Accelerator pedal position (APP) sensors are located in the throttle actuator control (TAC) module assembly. The TAC module assembly is mounted on the accelerator pedal bracket. There are 3 individual APP sensors in the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used to determine the accelerator pedal position. APP sensor signal voltages increase when the accelerator pedal is pressed.