( TL19E00G24100013131FAAT00 )

Audio Communication Line Circuit Troubleshooting

1. Disconnect climate control unit connector A (28P) and the center display unit 12P connector.

1. Check for continuity between the following terminals of heater control unit connector A (28P) and the center display unit 12P connector.

   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 heater control unit connector A (28P) and the center display unit 12P connector.■