P1270 GMC - Accelerator Pedal Position Sensor A/D Converter Error
- Faulty Accelerator Pedal Position (APP)
- Accelerator Pedal Position harness is open or shorted
- Accelerator Pedal Position circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1270 Gmc DescriptionThe Accelerator Pedal Position (APP) sensors are located within the Throttle Actuator Control (TAC) module assembly. The TAC module assembly is mounted to the accelerator pedal bracket. There are 3 individual APP sensors within the TAC module. Three separate signal circuits, low reference circuits, and 5-volt reference circuits are used in order to determine the accelerator pedal position. The APP sensor signal voltages increase when the accelerator pedal is depressed.
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