For 1990-2009 cars

### Diagnostic Aids

The chime module is located above the instrument panel (I/P) fuse block.

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Inspect fuse F4. Is fuse F4 open? | -- | Go to Step 2 | Go to Step 3
2 |

1. Inspect for a short circuit and repair, if necessary.
2. Replace the fuse.

Is the repair complete?

--

System OK

--

3 |

1. Turn the ignition ON.
2. Use a multimeter to check the voltage at fuse F4.

Does the voltmeter show the specified value?

11-14 V

Go to Step 5

Go to Step 4

4 | Repair the open power supply circuit for fuse F4. Is the repair complete? | -- | System OK | --
5 |

1. Disconnect the chime module connector.
2. Turn the ignition ON.
3. Measure the voltage at terminal 8 of the chime module connector.

Is the voltage equal to the specified value?

11-14 V

Go to Step 7

Go to Step 6

6 | Repair the open circuit between fuse F4 and the chime module. Is the repair complete? | -- | System OK | --
7 |

1. Make sure the seat belt is unfastened.
2. With the chime module connector disconnected, use an ohmmeter to measure continuity between terminal 1 of the chime module and ground.

Does the ohmmeter indicate the specified value?

0 ohms

Go to Step 13

Go to Step 8

8 |

1. Make sure the seat belt is unfastened.
2. Disconnect the seat belt connector under the driver seat.
3. Use an ohmmeter to measure between the 2 terminals at the switch side of the connector.

Does the ohmmeter indicate the specified value?

0 ohms

Go to Step 9

Go to Step 12

9 | While the seat belt connector is disconnected, measure the continuity between the terminal for the BK wire and ground. Does the ohmmeter indicate the specified value? | 0 ohms | Go to Step 10 | Go to Step 11
10 | Repair the open circuit between the seat belt connector and ground. Is the repair complete? | -- | System OK | --
11 | Repair the open circuit between terminal 1 of the chime module and the seat belt switch. Is the repair complete? | -- | System OK | --
12 | Replace the seat belt switch. Is the repair complete? | -- | System OK | --
13 | With the chime module disconnected, use an ohmmeter to measure continuity between terminal 5 of the chime module and ground. Does the ohmmeter indicate the specified value? | 0 ohms | Go to Step 15 | Go to Step 14
14 | Repair the open circuit between terminal 5 of the chime module and ground. Is the repair complete? | -- | System OK | --
15 | Inspect the seat belt warning lamp. Is the warning lamp OK? | -- | Go to Step 17 | Go to Step 16
16 | Replace the seat belt warning lamp. Is the repair complete? | -- | System OK | --
17 | Replace the chime module. Refer to Audio Alarm Module Replacement . Is the repair complete? | -- | System OK | --