P1275 ACURA, BUICK, CADILLAC, CHEVROLET, GMC, HONDA, ISUZU: ACCELERATOR PEDAL POSITION SENSOR 1 CIRCUIT
POST UPDATED IN June, 2023
P1275 ACURA, BUICK, CADILLAC, CHEVROLET, GMC, HONDA, ISUZU: ACCELERATOR PEDAL POSITION SENSOR 1 CIRCUIT
An APP sensor (accelerator pedal position sensor) is installed in the throttle electronics. This sensor monitors the position of the accelerator pedal and provides an electrical signal that opens the throttle body as the pedal is depressed.
The APP Sensor signals the engine how fast to drive while the pedal is depressed. It is located within the TAC (Throttle Control) Module assembly. If the pedal is depressed or released, an electrical signal is sent to the Engine Control Module (ECM). Then, it will communicate this to the fuel system.
Three individual Throttle Pedal Position Sensors are installed in the TAC Module and three signal circuits, reference circuits (5-volt reference), and low reference circuits are used to calculate the throttle position. If the APP 1 Sensor experiences erratic operation in its circuitry, Chevrolet, GMC, Honda, and other vehicles will set the DTC P1275 OBDII code.
The P1275 OBD2 fault code is stored for one or more of the following reasons:
To troubleshoot the P1275 OBDII diagnostic code, try this: