Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

X111 - Check Power-to-A/C Clutch and A/C Clutch Ground Circuits



- Key Off.

- CCRM disconnected.

- Disconnect A/C clutch.

- Disconnect Scan Tool from DLC.

- Measure resistance between Pin 23 of the CCRM vehicle harness connector and the power side of the A/C clutch vehicle harness connector.

- Measure resistance between Pin 16 of the CCRM vehicle harness connector and the ground side of the A/C clutch vehicle harness connector.

- Is each resistance less than 5.0 ohms?

YES -- REPLACE CCRM. RECONNECT all components. RE-EVALUATE symptom.

NO -- SERVICE open circuit. RECONNECT all components. RE-EVALUATE symptom.