General Information

Component Location





General Description

The ECM provides a 5volt reference voltage to the Acceleration Position Sensor 2 (APS 2), A/C pressure sensor and power steering sensor. The ECM monitors reference voltage deviation from the power supply circuit of the sensors

DTC Description

ECM sets DTC P0642 if the ECM detects reference voltage lower than threshold value

DTC Detecting Condition





Schematic Diagram