Fault Code 6
1. Disconnect the low pressure cut out switch and retest system.- If code 6 does not reappear, check for a problem in the wiring between the low pressure cut out switch and the engine controller or a faulty engine controller.
- If code 6 does reappear, go to step 2.
2. Disconnect the 21-way connector from the Control Module. Check for a continuity between terminal #13 and ground.
- If there is continuity, repair the circuit and retest.
- If there is no continuity, replace the control module and retest.