Audio System Symptom Troubleshooting - Audio system information does not display on the audio-HVAC subdisplay unit. The HVAC controls may also be affected
Audio system information does not display on the audio-HVAC subdisplay unit The HVAC controls may also be affected
  1. Check the connections at the audio-HVAC subdisplay unit 10P connector and the audio unit connector D (10P).
Are the connectors and terminals connected properly?
YES -
Go to Step 2 .
NO -
Repair the connection and recheck.■
  1. Check for continuity between the audio-HVAC subdisplay unit 10P connector and the audio unit connector (10P) terminals for each wire listed in the chart.
    Audio-HVAC subdisplay unit connector (10P) terminal
    Audio unit connector D (10P) terminal
    Wire Color
    2
    D2
    PNK
    4
    D4
    YEL
    5
    D5
    PUR
    6
    D6
    ORN
    7
    D7
    BLU
    8
    D8
    GRY
    9
    D9
    PNK
    10
    D10
    LT GRN
    1
    D1
    BRN
    3
    (body ground)
    BLK

Is there continuity?
YES -
Go to Step 3 .
NO -
Repair an open in the wire between the display panel control unit and the audio-HVAC subdisplay unit.■
  1. Check for continuity between each audio-HVAC subdisplay unit 10P connector terminal and body ground.
    Audio-HVAC subdisplay unit connector (10P) terminal
    Wire color
    2
    PNK
    4
    YEL
    5
    PUR
    6
    ORN
    7
    BLU
    9
    PNK
    10
    LT GRN

Is there continuity?
YES -
Repair the short to ground in the wire between the audio unit and the audio-HVAC subdisplay unit.■
NO -
Go to Step 4 .
  1. Substitute a known-good audio-HVAC subdisplay unit and recheck.
Does the subdisplay work properly?
YES -
Replace the original audio-HVAC subdisplay unit.■
NO -
Substitute a known-good audio unit and retest. If the problem is gone, replace the original audio unit.■