Rear Wiper Function Control Circuit Short to Ground
Table of contents
B370B SATURN Possible Causes
- Faulty Rear Window Wiper Motor
- Rear Window Wiper Motor harness is open or shorted
- Rear Window Wiper Motor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How do I fix code B370B SATURN?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Cost of diagnosing the B370B SATURN code
The cost of diagnosing the B370B SATURN code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B370B SATURN Description
The Body Control Module (BCM) controls the single speed rear wiper motor by its active high output to the external rear wiper motor relay. When the BCM activates its output and applies battery to the coil of the relay, the relay energizes, allowing battery voltage from the fuse to be applied through the switched contacts of the rear wiper motor relay to the control input of the rear wiper motor. The motor then operates continuously at low speed. The Diagnostic Trouble Code (DTC) sets if a short to ground or an open/high resistance is detected in the rear window wiper control circuit.