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

E3 - Check Wiper Switch Functionality



^ Turn wiper switch to Off position.

^ Measure resistance between circuits 589 (O) and 993 (BR/W).

^ Is resistance between 45k ohms and 50k ohms?

YES -- Replace wiper control module.

NO -- Check for:

- Unseated wiper switch connector.

- open circuit (589 (O) or 993 (BR/W)).

- Damaged wiper switch.

Service as required.