Diagnosis And Testing - Rear Wiper System

DIAGNOSIS AND TESTING - REAR WIPER SYSTEM

The rear window wiper system operates in several modes:

- Continuous wipe (Export and ATC equipped vehicles only)
- Intermittent wipe
- Wash
- Wipe after wash

The windshield wiper circuits are continuously monitored and controlled by the Body Control Module (BCM). If a problem occurs in the electronic components, wiring, switch (except integral motor park switch) and wiper motor a Diagnostic Trouble Code (DTC) will be stored in the BCM memory. The DTC(s) can be retrieved using a DRBIII(R) scan tool.