( TL19E00K733000Y1241FAAT00 )

DTC Troubleshooting: B1241 (N and A/C ON)

1. Check for continuity between the following terminals of heater control unit connector B (12P) and the power transistor 4P connector.

   12P: | 4P:
   No. 5 | No. 1
   No. 6 | No. 3

Is there continuity?

YES | - | Go to Step 20 .
NO | - | Repair open in the wire(s) between the heater control unit and the power transistor.■

1. Turn the ignition switch to ON (II).