B3722

Schematic:

CIRCUIT DESCRIPTION
When operation of the rear wiper is selected, battery voltage from the rear wiper switch is applied to the rear wiper input of the Body Control Module (BCM) circuit 94. The BCM responds by switching circuit 7445 to ground. This action energizes the rear wiper relay, providing power to the rear wiper motor.

Control of the wiper during continuous LO or HI speed switch settings is direct wired from the wiper switch to the wiper motor and is not under the control of the BCM.

DTC PARAMETERS
^ Ignition is in RUN or ACC position
^ Circuit 7445 is shorted-to-ground or open

DIAGNOSTIC AIDS
^ Check for poor connection at the BCM. Inspect harness connectors for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal-to-wire connection (terminal crimped over wire insulation and not conductors).
^ Inspect wiring harness for damage. Check for broken or chaffed insulation.
^ If fault is suspected to be intermittent, wiggling harness wiring may help in locating fault.

TEST DESCRIPTION

Diagnostic Chart: