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

INT Operation

When the wiper switch is moved to the INT position, battery voltage is applied the wiper motor connector at terminals B and E through CKTs 143 and 95. Voltage is also applied at terminal D through CKT 91.

The length of delay time between sweeps is controlled by the variable pulse delay resistor. The delay time is adjustable from 1 to 22 seconds.