Circuit Description
The body control module (BCM) monitors the rear washer motor circuit 392.
When a rear windshield wash is requested for more than 2 minutes, circuit 392
at battery voltage, the BCM will turn OFF the rear wiper motor if the rear wiper is
NOT requested by the wiper switch.
Power for the rear washer motor is supplied through the front wiper fuse and
rear washer switch. Grounding for the rear washer motor is through the OFF position
of the front washer motor switch.
DTC Parameters
| • | The ignition is in RUN or ACC. |
| • | Rear washer circuit 392 at battery voltage for 2 minutes. |
Diagnostic Aids
| • | Inspect the wiring harness for damage. Check for broken or chaffed insulation. |
| • | If a fault is suspected to be intermittent, wiggling the harness wiring
may help in locating the fault. |
