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

Control Module HVAC: Service and Repair

Heater And A/C Programmer And Vacuum Harness:




Heater And A/C Programmer And Actuators:






Remove or Disconnect

1. Negative battery cable.
2. Right sound insulator.
3. Instrument panel compartment.
4. Vacuum and electrical connectors from programmer.
5. Programmer from vehicle.

Install or Connect

1. Programmer to vehicle.
2. Vacuum and electrical connectors to programmer.
3. Right sound insulator.
4. Instrument panel compartment.
5. Negative battery cable.