( TL19E00G10500016661FAAT00 )

Climate Control-Audio Communication Line Circuit Troubleshooting

1. Disconnect climate control unit connector A (28P) and the audio/navigation switch panel 24P connector (with navigation) or center display unit 12P connector (without navigation).

1. Check for continuity between the following terminals of climate control unit connector A (28P) and the audio/navigation switch panel 24P connector or center display unit 12P connector.

   With navigation
   28P: | 24P:
   No. 19 | No. 7
   No. 20 | No. 19
   28P: | 12P:
   No. 19 | No. 7
   No. 20 | No. 8

Is there continuity?

YES | - | Go to Step 3 .
NO | - | Repair open in the wire between climate control unit connector A (28P) and the audio/navigation switch panel 24P connector or center display unit 12P connector.■