General Information

Engine Control
P0643 Sensor Reference Voltage \'A\' Circuit High - General Information

Component Location





General Description

The PCM provides a 5volt reference voltage to the Acceleration Position Sensor1(APS2). The PCM monitors reference voltage deviation from the power supply circuit of the APS2.

DTC Description

PCM sets DTC P0643 if the PCM detects reference voltage higher than threshold value.

DTC Detecting Condition





Diagnostic Circuit Diagram