CHIME WARNING SYSTEM
| WARNING | To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment. |
The hard wired circuits between components related to the chime warning system may be diagnosed using conventional diagnostic tools and procedures. Refer to SYSTEM WIRING DIAGRAMS . . The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.
However, conventional diagnostic methods will not prove conclusive in the diagnosis of the chime warning system or the electronic controls or communication between modules and other devices that provide some features of the chime warning system. The most reliable, efficient, and accurate means to diagnose the chime warning system or the electronic controls and communication related to chime warning system operation requires the use of a diagnostic scan tool. Refer to SYSTEM WIRING DIAGRAMS .
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| NO SEAT BELT WARNING CHIME WITH SEAT BELT UNBUCKLED, BUT OTHER CHIME FEATURES OKAY | 1. Ineffective seat belt switch ground circuit. | 1. Test and repair the open driver seat belt switch ground circuit, if required. |
| 2. Ineffective seat belt switch sense circuit. | 2. Test and repair the open seat belt switch sense circuit, if required. | |
| 3. Ineffective seat belt switch. | 3. Test and replace the seat belt switch, if required. | |
| SEAT BELT WARNING CHIME WITH SEAT BELT BUCKLED | 1. Ineffective seat belt switch sense circuit. | 1. Test and repair the shorted seat belt switch sense circuit, if required. |
| 2. Ineffective seat belt switch. | 2. Test and replace the seat belt switch, if required. | |
| NO KEY-IN IGNITION WARNING CHIME, BUT OTHER CHIME FEATURES OKAY | 1. Ineffective driver door ajar switch sense circuit. | 1. Test and repair the open driver door ajar switch sense circuit, if required. |
| 2. Ineffective key-in ignition switch sense circuit. | 2. Test and repair the open key-in ignition switch sense circuit, if required. | |
| 3. Ineffective key-in ignition switch ground circuit. | 3. Test and repair the open key-in ignition switch ground circuit, if required. | |
| 4. Ineffective key-in ignition switch. | 4. Test and replace the key-in ignition switch (ignition switch), if required. | |
| NO EXTERIOR LAMPS-ON WARNING CHIME, BUT OTHER CHIME FEATURES OKAY | 1. Ineffective driver door ajar switch sense circuit. | 1. Test and repair the open driver door ajar switch sense circuit, if required. |
| 2. Ineffective headlamp switch signal circuit. | 2. Test and repair the open headlamp switch signal circuit, if required. | |
| NO CHIMES AND OTHER INSTRUMENT CLUSTER FEATURES ERRATIC OR DISABLED | 1. Ineffective instrument cluster ground circuit(s). | 1. Test and repair the open instrument cluster ground circuits(s), if required. |
| 2. Ineffective instrument cluster battery feed circuit(s). | 2. Test and repair the open instrument cluster battery feed circuit(s), if required. | |
| 3. Ineffective instrument cluster ignition feed circuit. | 3. Test and repair the open instrument cluster fused ignition switch output (run-start) circuit, if required. | |
| 4. Ineffective instrument cluster. | 4. Test and replace the instrument cluster, if required. | |
| NO CHIMES, BUT ALL OTHER INSTRUMENT CLUSTER FEATURES OKAY | 1. Ineffective instrument cluster. | 1. Test and replace the instrument cluster, if required. |