WIPER HIGH/LOW RELAY OUTPUT CIRCUIT LOW





For a complete wiring diagram Refer to Section 8W


  • When Monitored:

    With ignition on.

  • Set Condition:

    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
  
WIPER HIGH/LOW RELAY SHORT TO GROUND
  
WIPER HIGH/LOW RELAY
  
BODY CONTROL MODULE
  



Diagnostic Test

1.INTERMITTENT CONDITION






Does the scan tool read: WIPER HIGH/LOW RELAY OUTPUT CIRCUIT LOW?

Yes
  • Go To2


No
  • The condition is not present at this time. Monitor scan tool parameters while wiggling the related wire harness. Refer to any Technical Service Bulletins that may apply. Visually inspect the related wiring harness and connector terminals.
  • Perform BODY VERIFICATION TEST - VER 1.

2.WIPER HIGH/LOW RELAY SHORT TO GROUND





Is the resistance below 5.0 ohms?

Yes
  • Repair the Wiper High/Low Relay Control circuit for a short to ground.
  • Perform BODY VERIFICATION TEST - VER 1.


No
  • Go To3

3.WIPER HIGH/LOW RELAY





Is the voltage above 10.0 volts?

Yes
  • Replace the Wiper High/Low Relay.
  • Perform BODY VERIFICATION TEST - VER 1.


No
  • Replace the Body Control Module.
  • Perform BODY VERIFICATION TEST - VER 1.