Diagnostic Aids
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- When the BCM has been requested to activate the rear wiper relay, the BCM switches the rear wiper relay control circuit to ground. However, if the circuit is shorted to battery voltage, high current flow will result and the BCM output will go into a protective state. The BCM output will not allow itself to be activated for as much as 3 minutes.
- Inspect the harness connectors at the BCM for improper terminal mating, broken connector locks, and improperly formed or damaged terminals.
- Inspect wiring harness for damage. Inspect for broken or chaffed insulation.
- Review all fail information as this may assist in determining the conditions when the fault occurs.
- If the fault is suspected to be intermittent, wiggling the harness wiring may help in locating the fault.