Wiper On/Off Relay Output Circuit Low

Monitored & Set Condition

1. When Monitored: With ignition On.
2. Set Condition: The BCM detects a low (ground) signal on the Wiper On/Off Relay output even though it is not attempting to drive the output for more than 5 seconds.

Possible Causes:

• Intermittent Condition
• Wiper On/Off Relay Short To Ground
• Wiper On/Off Relay
• Body Control Module

Testing

1. Turn the ignition on. With the DRBIII(R), clear all BCM DTC's. Turn the Wipers on. With the DRBIII(R), read the DTC information. Does the DRBIII(R) read: WIPER ON/OFF RELAY OUTPUT CIRCUIT LOW? 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  .
2. Turn the ignition off. Disconnect the Wiper On/Off Relay. Measure the resistance between ground and the Wiper On/Off Relay Control circuit. Is the resistance below 5.0 ohms? If yes, repair the Wiper On/Off Relay Control circuit for a short to ground. Perform BODY VERIFICATION TEST  . If no, go to next step.
3. Turn the ignition off. Disconnect the Wiper On/Off Relay harness connector. Measure the voltage of the Wiper On/Off Relay harness connector coil side feed circuit to ground. Is the voltage above 10.0 volts? If yes, replace the Wiper On/Off Relay. Perform BODY VERIFICATION TEST  . If no, replace the Body Control Module. Perform BODY VERIFICATION TEST  .