PARK LAMP RELAY CIRCUIT HIGH

For a complete wiring diagram Refer to Section 8W


  • When Monitored:

    With the ignition on.

  • Set Condition:

    BCM detects battery on the Park Lamp Relay when it is attempting to turn on the Park Lamps for more than 5 seconds.


Possible Causes
  
MISSING RELAY
  
OPEN FUSE
  
PARK LAMP RELAY
  
BODY CONTROL MODULE
  
FUSED PARK LAMP RELAY OUTPUT CIRCUIT OPEN
  



Diagnostic Test

1.INTERMITTENT CONDITION






Does the scan tool read: PARK LAMP RELAY CKT HIGH?

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.MISSING RELAY




Is the Park Lamp Relay present?

Yes
  • Go To3


No
  • Replace the missing Park Lamp Relay.
  • Perform BODY VERIFICATION TEST - VER 1.

3.OPEN FUSE




Are any of the fuses open?

Yes
  • Replace the open fuse.
  • Perform BODY VERIFICATION TEST - VER 1.


No
  • Go To4

4.PARK LAMP RELAY





Do the Park Lamps operate normally?

Yes
  • Replace the Park Lamp Relay.
  • Perform BODY VERIFICATION TEST - VER 1.


No
  • Go To5

5.BODY CONTROL MODULE





Is the voltage above 10 volts?

Yes
  • Replace the Body Control Module.
  • Perform BODY VERIFICATION TEST - VER 1.


No
  • Repair the Fused Park Lamp Relay Output circuit for an open condition.
  • Perform BODY VERIFICATION TEST - VER 1.