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Home >> Dodge and Ram >> 2004 >> Caravan SXT >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Body Diagnostic Procedures - Introduction >> System Description And Functional Operation >> Front Control Module >> Relay Controls >> Front Wiper On Relay
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Front Wiper On Relay

The front wiper switch is a direct input to the BCM. The BCM sends a PCI Bus message to the FCM informing it to turn on the front wiper on relay. The front wiper on relay is then powered through low side control of the FCM. This circuit is electronically controlled and continuously monitored for malfunctions.

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