Buzzer Module
- If the buzzer/chime unit does not operate properly, check fuses No. 3 and 9 in fuse block. Replace fuses as necessary. See Fig 1 and Fig 2 . If the fuses are okay, go to next step.
- Check for battery voltage at fuse No. 3 in fuse block. If battery voltage is present, go to next step. If battery voltage is not present, repair feed circuit from power distribution center to fuse No. 3 as necessary.
- Turn ignition switch on. Check for battery voltage at fuse No. 9 in fuse block. If battery voltage is present, go to next step. If battery voltage is not present, repair feed circuit from ignition switch to fuse No. 9 as necessary.
- Turn ignition switch off. Replace buzzer module with a known-good unit and test operation. If buzzer operation is not okay, remove buzzer module and go to next step.
- Check voltage between ground and buzzer module connector terminal No. 7. See Fig 3 . If battery voltage is present, go to next step. If battery voltage is not present, repair circuit as necessary.
- Turn ignition switch to on. Measure voltage between ground and buzzer module connector terminal No. 1. See Fig 3 . Meter should read battery voltage. If battery voltage is present, go to next step. If battery voltage is not present, repair circuit as necessary.
- Turn ignition switch off. Check for continuity between buzzer module connector terminal No. 3 and ground. Continuity should exist. If continuity exists, go to diagnosis for the switch that is related to buzzer malfunction. If continuity does not exist, repair open in ground circuit.