Wiper On/Off Relay Output Circuit High

Monitored & Set Condition

When Monitored: With ignition On.
Set Condition: The BCM detects a high level on the Wiper On/Off Relay output when it is attempting to turn the wipers on for more than 5 seconds.

Possible Causes:

Testing

Turn the ignition on. With the DRBIII(R), clear all BCM DTC's. Turn the Front Wipers on. With the DRBIII(R), read the DTC information. Does the DRBIII(R) read: WIPER ON/OFF RELAY CIRCUIT HIGH? If yes, go to next step. If no, the condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires. Perform BODY VERIFICATION TEST .
Turn the ignition off. Check the PDC to make certain the Wiper On/Off Relay is present. Is the Wiper On/Off Relay present? If yes, go to next step. If no, replace the missing Wiper On/Off Relay. Perform BODY VERIFICATION TEST .
Turn the ignition off. Check the Junction Block Circuit Breaker No. 3. Is the Circuit Breaker open? If yes, replace the open Circuit Breaker. Perform BODY VERIFICATION TEST . If no, go to next step.
Turn the ignition off. Install a known-good relay in place of the Wiper On/Off Relay. Turn the Wipers On. Do the Wipers operate normally? If yes, replace the Wiper On/Off Relay. Perform BODY VERIFICATION TEST . If no, go to next step.
Turn the ignition off. Remove the Wiper On/Off Relay. Measure the voltage of the Fused B+ circuit of the Wiper On/Off Relay. Is the voltage above 10 volts? If yes, replace the Body Control Module. Perform BODY VERIFICATION TEST . If no, repair the Front Wiper Park Switch Sense circuit for an open condition. Perform BODY VERIFICATION TEST .