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)

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X107 - Check WAC Circuit Continuity

- Key Off.

- CCRM disconnected.

- Breakout box installed, PCM disconnected.

- Measure resistance between Test Pin 69 (WAC) at the breakout box and Pin 22 at the CCRM vehicle harness connector.

- Is resistance less than 5.0 ohms?

YES -- GO to X108. X108 - Check Operation of WAC In CCRM

NO -- SERVICE open WAC circuit. REMOVE breakout box. RECONNECT all components. Rerun quick test. Diagnostic Subroutines (DSR) - Extracting Codes