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 connect the drivers seat belt.
3. Turn the ignition switch to the ON position.
4. The seat belt warning alarm should chime approximately one chime per second for approximately 5 seconds.
5. The seat belt indicator flashes.
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 | Are both the seat belt indicator and the seat belt chime inoperative? | Go to Step 5 | Go to Step 4
4 | Is the seat belt indicator inoperative? | Go to Step 7 | Go to Step 9
5 |

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

Does the seat belt switch operate properly?

Go to Step 6

Go to Step 8

6 | Test the seat belt switch signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 9
7 | Test the seat belt indicator circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 12 | Go to Step 9
8 | 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 12 | Go to Step 10
9 | Inspect for a poor connection at the harness connector of the multifunction alarm module. 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 12 | Go to Step 11
10 | Replace the seat belt switch. Refer to Front Seat Belt Buckle Replacement . Did you complete the replacement? | Go to Step 12 | --
11 | Replace the multifunction alarm module. Refer to Multifunction Alarm Module Replacement . Did you complete the replacement? | Go to Step 12 | --
12 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3