Clock: Testing and Inspection

Symptom Troubleshooting

Clock is abnormal

1. Remove the audio-HVAC display module.
2. Remove the clock.
3. Check the connections at the clock 10P connector and audio-HVAC display panel connector C (10P).

Are the connectors and terminals connected properly?

YES - Go to step 4.

NO - Repair the connection and recheck.

4. Check for continuity between the clock 10P connector and the audio-HVAC display panel connector C (10P) terminals for each wire listed in the chart.






Is there continuity?

YES - Go to step 5.

NO - Repair the open in the wire between the audio-HVAC display panel and the clock.

5. Check for continuity between each clock 10P connector terminal and body ground.






Is there continuity?

YES - Repair the short to ground in the wire between the audio-HVAC display panel and the clock.

NO - Go to step 6.

6. Substitute a known-good clock and recheck.

Is the clock normal?

YES - Replace the original clock.

NO - Substitute a known-good audio-HVAC display panel and retest. If the problem is gone, replace the original audio-HVAC display panel.