B1235

DTC B1235 or DTC indicator K: A Problem in the Driver's Air Mix Control Linkage, Door, or Motor

1. Clear the DTC.
2. Turn the ignition switch OFF, and then ON.
3. Operate the climate control system in several modes.
4. Check the DTCs.

Is DTC B1235 or K indicated?

YES - Go to step 5.

NO - Intermittent failure.

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

Are the driver's air mix control motor and linkage OK?

YES - Substitute a known-good audio-HVAC display panel, and recheck. If the symptom/indication goes away, replace the original audio-HVAC display panel.

NO - Replace the driver's air mix control motor, or repair the driver's air mix control linkage or door.