| 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 |