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Fasten Safety Belt Indicator/Chime Inoperative

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fasten Safety Belt Indicator/Chime Inoperative

Step Action Yes No
Schematic Reference: Seat Belt Schematics 
Connector End View Reference: Seat Belt Connector End Views 
1 Did you review the Diagnostic Starting Point - Seat Belts? Go to Step 2  Go to Diagnostic Starting Point - Seat Belts 
2 Did you perform the Diagnostic System Check - Instrument Cluster ? Go to Step 3  Go to DIAGNOSTIC SYSTEM CHECK - INSTRUMENT CLUSTER
3
  1. Turn ON the ignition, with the engine OFF.
  2. Observe the seat belt indicator illumination during bulb check.
Does the seat belt indicator illuminate during bulb check?		 Go to Symptoms - Seat Belts  Go to Step 4 
4
  1. Install a scan tool.
  2. Unfasten the LF seat belt.
  3. With a scan tool, observe the seat belt buckled parameter in the instrument panel cluster (IPC) data list.
Does the scan tool indicate that the seat belt is unbuckled?		 Go to Step 5  Go to Step 6 
5 Replace the IPC. Refer to INSTRUMENT PANEL CLUSTER (IPC) REPLACEMENT .
Did you complete the replacement?		 Go to Step 11  -
6
  1. Disconnect the LF seat belt switch connector.
  2. With a scan tool, observe the seat belt buckled parameter in the instrument panel cluster (IPC) data list.
Does the seat belt parameter change state?		 Go to Step 7  Go to Step 8 
7 Replace the LF seat belt switch. Refer to Seat Belt Buckle Replacement - Front .
Did you complete the replacement?		 Go to Step 11  -
8 Test the signal circuit of the seat belt switch for an open or high resistance. Refer to CIRCUIT TESTING and WIRING REPAIRS .
Did you find and correct the condition?		 Go to Step 11  Go to Step 9 
9 Test the ground circuit of the seat belt switch for an open or high resistance. Refer to CIRCUIT TESTING and WIRING REPAIRS .
Did you find and correct the condition?		 Go to Step 11  Go to Step 10 
10 Replace the body control module (BCM). Refer to BODY CONTROL MODULE REPLACEMENT .
Did you complete the replacement?		 Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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