Schematic Reference: Seat Belt Schematics

1

Did you review the Diagnostic Starting Point - Seat Belts?

Go to Step 2

Go to Diagnostic Starting Point - Seat Belts

1. Turn ON the ignition, with the engine OFF.
2. Observe the seat belt indicator during bulb check.

Does the seat belt indicator illuminate during bulb check?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Turn OFF the ignition.
2. Remove the multifunction alarm module. Refer to Multifunction Alarm Module Replacement in Instrument Panel, Gages and Console.
3. Connect a fused jumper between the seat belt indicator control circuit and the ignition 1 input circuit at the multifunction alarm module connector.
4. Turn ON the ignition, with the engine OFF.

Does the seat belt indicator illuminate?

Go to Step 7

Go to Step 4

1. Turn OFF the ignition.
2. Test the seat belt indicator control circuit for a short to ground, high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 5

Test the instrument cluster ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 6

1. Disconnect the instrument cluster harness connector. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.
2. Inspect the instrument cluster connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 8

Inspect the multifunction alarm module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 10

Go to Step 9

Repair or replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gages and Console.

Did you complete the replacement?

Go to Step 10

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Replace the multifunction alarm module. Refer to Multifunction Alarm Module Replacement in Instrument Panel, Gages and Console.

Did you complete the replacement?

Go to Step 10

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2