B2300 SE Regular Cab 2WD L4-2.3L VIN A (1997)
Front Washer and Wiper System
Washer/Wiper System - Operation (GEM AND CTM)
All signals from the windshield wiper switch are sent to the GEM/CTM. The GEM/CTM will send signals to the power distribution box, hi/low speed
relay or the wash control relay. These signals will then be sent to the windshield wiper motor or the washer pump motor.
Electronic Shift System - Operation (GEM ONLY)
The Dana 35 IFS has a vacuum-operated disconnect system for the 4WD operation which eliminates the need for hub locks at the wheel ends.
When 4WD mode is selected, the GEM energizes the electronic vacuum control valve that applies vacuum to the shift motor through a vacuum
canister. The vacuum that is applied to the shift motor moves the shift fork located inside the disconnect housing against a locking collar and slides it
between the inner shaft and a constant shaft locking them together, which engages the axle.
