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

X3 - Check CCRM Ground Circuit

- Key Off.

- CCRM disconnected.

- Measure voltage between Pin 8 (B+) and Pin 15 (GND) at the CCRM vehicle harness connector.

- Is voltage greater than 10.5 volts?

YES -- REPLACE CCRM. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes

NO -- SERVICE open ground circuit to CCRM (Pin 15). RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes