LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2013 >> Sonic RS, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls/Fuel - 1.8L (LUW, LWE) - DTC P0443 To DTC P2635 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2122, P2123, P2127, P2128, or P2138 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different variant/trim than selected.

The throttle actuator control (TAC) system uses two accelerator pedal position (APP) sensors to monitor the accelerator pedal position. The APP sensors 1 and 2 are located within the pedal assembly. Each sensor has a 5 V reference circuit, a low reference circuit, and a signal circuit.

Two processors are also used to monitor the TAC motor system data. Both processors are located within the ECM. Each signal circuit provides both processors with a signal voltage proportional to pedal movement. The processors share and monitor data to verify that the indicated APP sensor calculation is correct.

scientia non olet · About LEMON Manuals