P1271 CHEVROLET, GMC, HONDA, ISUZU, ACURA, BUICK, CADILLAC: ACCELERATOR PEDAL POSITION SENSOR 1-2 CORRELATION
POST UPDATED IN May, 2023
P1271 CHEVROLET, GMC, HONDA, ISUZU, ACURA, BUICK, CADILLAC: ACCELERATOR PEDAL POSITION SENSOR 1-2 CORRELATION
An Accelerator Pedal Position Sensor (APP) is a component that is part of the vehicle’s acceleration system. This sensor basically monitors the position of the accelerator pedal to send this information to the control module that requires it to control the throttle opening.
Three APP sensors are installed in the TAC (Throttle Actuator Control) assembly, and each has individual signal circuits, a voltage carrying circuit for low reference, and a 5V reference circuit. Every change the accelerator pedal undergoes i.e. is depressed or depressed, is reported to the ECM, which will use this data for fuel control.
The diagnostic code P1271 OBDII, for manufacturers such as Acura, Chevrolet, GMC, Isuzu, and others, indicates that a correlation problem has been found between the APP 1-2 Sensor.
The reasons for the DTC P1271 OBD2 are stored:
The steps to troubleshoot the P1271 OBDII fault code is: