X108 - Check Operation of WAC In CCRM
- Key Off.
- Breakout box installed, PCM disconnected.
- Reconnect CCRM
- A/C clutch connected.
- Key On.
- A/C demand switch to A/C On.
- Connect a jumper wire between Test Pin 69 (WAC) and Test Pin 77 (PWR GND) at the breakout box.
- Disconnect and reconnect the jumper several times while listening to the A/C clutch.
- Does the A/C clutch engage and disengage as the jumper is disconnected and reconnected?
YES -- Key Off. REPLACE PCM. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes
NO -- Key Off. REPLACE CCRM. INSPECT Power-to-A/C Clutch circuit for short to ground. SERVICE as necessary. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes