Diagnostic Aids
WARNING: This page is about a different variant/trim than selected.
DTC P0641
The 5V Reference 1 circuit provides 5V to the sensors listed below:
- A/C refrigerant pressure sensor
- Exhaust camshaft position sensor
- Intake camshaft position sensor
- Fuel pressure sensor - LEA engine
- Fuel rail pressure sensor
- Fuel tank pressure sensor
- Multifunction intake air sensor - LEA engine
DTC P0651
The 5V Reference 2 circuit provides 5V to the sensors listed below:
- Brake pedal position sensor - LEA engine
- Crankshaft position sensor
- Secondary air injection check valves, if equipped
DTC P0697
The 5V Reference 3 circuit provides 5V to the sensors listed below:
- Manifold absolute pressure sensor
- Accelerator pedal position Sensor 2
DTC P06A3
The 5V Reference 4 circuit provides 5V to the sensors listed below:
- Throttle position sensor
- Accelerator pedal position Sensor 1
Disconnecting one component at a time from the affected 5V reference circuit while observing the scan tool 5V Reference Circuit Status parameter may help locate the fault. The scan tool parameter will change from Malfunction to OK when the source of the fault is disconnected. If all 5V reference components have been disconnected and a fault is still indicated, the fault may exist in the wiring harness.