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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 27 (Engine Control System & Fuel System - 4.6L - Introduction (2 Of 2)) >> Description and Operation >> Throttle Actuator Control (TAC) System Description >> Accelerator Pedal Position (APP) Sensor

Accelerator Pedal Position (APP) Sensor

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

The accelerator pedal contains 2 individual sensors within the assembly. The accelerator pedal position (APP) sensors 1 and 2 are potentiometer type sensors, each with the following 3 circuits:

The APP sensors are used to determine the pedal angle. The engine controls module (ECM) provides each APP sensor with a 5-volt reference circuit and a low reference circuit. The APP sensors provide the ECM with signal voltage proportional to the pedal movement. The APP sensor 1 signal voltage at rest position is near low reference and increases as the pedal is actuated. The APP sensor 2 signal voltage at rest position is near low reference and increases as the pedal is actuated.

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