DTC indicator J or DTC B1234: A Short in the Driver's Air Mix Control Motor Circuit

1. Clear the DTC.

1. Turn the ignition switch OFF, and then ON.

1. Operate the climate control system is several modes.

1. Check the DTCs.

Is DTC J or B1234 indicated?

YES | - | Go to Step 5 .
NO | - | Intermittent failure.■

1. Test the driver's air mix control motor.

Is the driver's air mix control motor OK?

YES | - | Go to Step 6 .
NO | - | Replace the driver's air mix control motor.■

1. Disconnect the driver's air mix control motor 7P connector.

1. Disconnect climate control unit connector A (22P).

1. Check for continuity between body ground and climate control unit connector A (22P) terminals No. 1, 8, 9, 15 and 20 individually.

Is there continuity?

YES | - | Repair any short to body ground in the wire(s) between the climate control unit and the driver's air mix control motor.■
NO | - | Go to Step 9 .