DR4 - Check PWR GND to CMP Sensor

- Key Off.

- CMP sensor disconnected.

- Measure resistance between PWR GND circuit at the CMP vehicle harness connector and battery negative post.

- Is resistance less than 5.0 ohms?

YES -- Go to DR5. DR5 - Check Continuity to PCM

NO -- SERVICE open in PWR GND circuit. Complete PCM reset to clear DTCs. Clearing Diagnostic Trouble Codes

Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes