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

D3 - Check Mode Select Signal at Wiper Switch



^ Disconnect harness from the wiper switch.

^ Resistance between terminals for circuits 993 (BR/W) and 589 (O).

^ Is resistance between 10.5k ohms and 12.0k ohms?

YES -- Check for open wire between switch and wiper control module. Service as required.

NO -- Check for damaged switch. Service as required.