B1663-REAR FOG LAMP CONTROL CIRCUIT LOW

For a complete wiring diagram Refer to Section 8W.


  • When Monitored:

    With the Rear Fog Lamps activated.

  • Set Condition:

    The Totally Integrated Power Module (TIPM) Detects a LOW condition.


Possible Causes
  
(L239) REAR FOG LAMP CONTROL CIRCUIT SHORT TO GROUND
  
LEFT REAR FOG LAMP BULB
  
RIGHT REAR FOG LAMP BULB
  
TOTALLY INTEGRATED POWER MODULE
  



Diagnostic Test

1.INTERMITTENT CONDITION






Does the scan tool display active: B1663-REAR FOG LAMP CONTROL CIRCUIT LOW?

Yes
  • Go To 2


No
  • The condition that caused this symptom is currently not present. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
  • Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

2.LEFT REAR FOG LAMP BULB






Does the DTC reset?

Yes
  • Go To 3


No

3.RIGHT REAR FOG LAMP BULB






Does the DTC reset?

Yes
  • Go To 4


No

4.(L239) REAR FOG LAMP CONTROL CIRCUIT SHORT TO GROUND






Is the resistance above 10k ohms?

Yes


No