DTC Troubleshooting: M

DTC indicator M:  A Problem in the Mode Control Linkage, Doors, or Motor

1.Clear the DTC by turning the ignition switch OFF, and then ON (II).

2.Operate the climate control system in several modes.

3.Check for DTCs using the self-diagnostic.

Is DTC L indicated?


YES - Go to 4.


NO - Intermittent failure.n


4.Turn the ignition switch OFF.

5.Test the mode control motor.

Is the mode control motor OK?


YES - Substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original  climate control unit.n


NO - Replace the mode control motor, or repair the mode control linkage or doors.n