For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Seat Belt Schematics
1 | Did you review the Seat Belt System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Seat Belts
2 |

1. Close the drivers door.
2. Do not fasten the drivers seat belt.
3. Turn ON the ignition.
4. The seat belt warning alarm chimes approximately two times per second for approximately six seconds.
5. The seat belt indicator is illuminated.
6. The seat belt indicator goes out when the seat belt is fastened.

Does the seat belt warning system operate properly?

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

Go to Step 3

3 |

1. Disconnect the seat belt switch connector.
2. Test the operation of the seat belt switch. The switch should be open when the seat belt is buckled and closed when the seat belt is not buckled.

Does the seat belt switch operate properly?

Go to Step 4

Go to Step 5

4 | Test the seat belt indicator circuit for a short to ground. 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
5 | Inspect for a poor connection at the harness connector of the seat belt switch. 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
6 | Inspect the instrument cluster printed circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems and Printed Instrument Cluster Circuit Replacement in Instrument Panel, Gages, and Console. Did you find and correct the condition? | Go to Step 10 | Go to Step 7
7 | Inspect for a poor connection at the harness connector of the multifunction alarm. 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
8 | Replace the seat belt switch. Refer to Seat Belt Retractor Replacement - Left Front . Did you complete the replacement? | Go to Step 10 | --
9 | Replace the multifunction alarm. Refer to Multifunction Alarm Module Replacement in Instrument Panel, Gages and Console. Did you complete the replacement? | Go to Step 10 | --
10 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3