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

X125 - ACCS PID on: Disconnect ACPSW and Check If PID Turns Off



- Key Off.

- Disconnect A/C Pressure Switch (ACPSW) (also known as the Refrigerant Containment/Fan Function Switch).

- Key On, Engine Off.

- Access ACCS PID.

- Is ACCS PID Off?

YES -- Key Off. VERIFY operation of A/C Demand Switch. If OK, SERVICE short to power in A/C Demand circuit to ACPSW. RECONNECT all components. RE-EVALUATE symptom.

NO -- Key Off. GO to X126. X126 - Check Power-to-A/C Clutch Circuit For Short to Power