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

Test X

PINPOINT TEST X: THE TEMPERATURE CONTROL IS INOPERATIVE USING THE REAR AUXILIARY CLIMATE CONTROLS


Test X1-X2:






Normal Operation
Under normal operation, a signal voltage is received by front auxiliary temperature control from the rear auxiliary temperature control through circuit 1127 (YE).

Possible Causes
- An open, short to voltage, ground in circuit 1127 (YE).
- Front auxiliary climate control assembly.
- Rear auxiliary climate control assembly.