Rear Mode Calibration Fault

Tests 1 - 3:

Tests 4 - 6:

Tests 7 - 8:

SYMPTOM
REAR MODE CALIBRATION FAULT - MTC

WHEN MONITORED
When the HVAC Door Recalibration is executed.

SET CONDITION
If the rear mode door's span is found outside the tolerance due to: open door actuator electrical circuits; a bad door actuator; broken door linkage; a bound up door; door actuator electrical circuits shorted to voltage; door actuator electrical circuits shorted to ground. A short to voltage or ground on the door actuator electrical circuits will also set door actuator overcurrent faults.

POSSIBLE CAUSES
- HVAC DTC(s) present
- Rear blend door actuator driver circuit(s) open
- Rear mode door actuator driver circuit(s) open
- Door actuator
- Actuator/linkage/door
- Door actuator driver circuit open
- Common door driver circuit open
- A/C - heater control module