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

Rear Vent Control Motor Test

Rear Vent Control Motor Test

NOTE: Before testing, check for HVAC DTCs.

1. Disconnect the 5P connector from the rear vent control motor.

NOTICE:
Incorrectly applying power and ground to the rear vent control motor will damage it. Follow the instructions carefully.

2. Connect battery power to the No. 1 terminal of the rear vent control motor, and ground the No. 2 terminal; the rear vent control motor should run, and stop at Shut. If it doesn't, reverse the connections; the rear vent control motor should run, and stop at Rear Vent.






3. If the rear vent control motor did not run in step 2, remove it, then check the rear vent control linkage and door for smooth movement.
- If the linkage and door move smoothly, replace the rear vent control motor.
- If the linkage or door sticks or binds, repair them as needed.