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For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes REAR DEFOGGER J/B FUSE REAR WINDOW DEFOGGER RELAY IGNITION SWITCH OUTPUT OPEN DEFOGGER RELAY CONTROL CIRCUIT SHORTED TO GROUND DEFOGGER RELAY CONTROL CIRCUIT OPEN FRONT CONTROL MODULE Diagnostic Test 1. TEST FOR INTERMITTENT CONDITION With the scan tool, record and erase DTC’s Operate the Rear Defogger Switch several times. Cycle the ignition from on to off 3 times and leave on. With the scan tool, read DTC’s. Does the scan tool display the same DTC? Yes >> Go To 2 No >> The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic Perform BODY VERIFICATION TEST - VER 1. 2. JUNCTION BLOCK FUSE Turn the ignition on. Using a 12-volt test light connected to ground, check the Rear Window Does the test light illuminate and was the fuse OK? No >> Repair the Ignition Switch Output (Run) circuit for an open or replace the fuse if open and check for a shorted Defog- Perform BODY VERIFICATION TEST - VER 1. Yes >> Go To 3 HB HEATED GLASS - ELECTRICAL DIAGNOSTICS 8G - 3 B106B,B106D–REAR DEFROST CONTROL CIRCUIT LOW/OPEN – FCM — (CONTINUED) |