Audio-HVAC Subdisplay/Clock Does Not Display
Audio-HVAC subdisplay/clock does not display1. Check the connections at the audio HVAC subdisplay/clock 10P connector and the audio HVAC display panel connector C (10P).
Are the connectors and terminals connected properly?
YES - Go to step 2.
NO - Repair the connection and recheck.
2. Check for continuity between the audio HVAC subdisplay/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 3.
NO - Repair the open in the wire between the audio HVAC display panel and the audio HVAC subdisplay/clock.
3. Check for continuity between each audio HVAC subdisplay/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 audio HVAC subdisplay/clock.
NO - Go to step 4.
4. Substitute a known audio HVAC subdisplay/clock and recheck.
Does the subdisplay work properly?
YES - Replace the original audio HVAC subdisplay/clock.
NO - Substitute a known good audio HVAC display panel and retest. If the problem is gone, replace the original audio HVAC display panel.