Mode Calibration Fault

Tests 1 - 4:

Test 5:

SYMPTOM
MODE CALIBRATION FAULT

TEST NOTE
This symptom is diagnosed using the test BLEND CALIBRATION FAULT.

WHEN MONITORED
When the HVAC Door Recalibration is executed.

SET CONDITION
If the Mode Door drive span found is outside the tolerance. If the Mode Door Actuator/circuit is open. If the Blend Door(s) (Driver, Pass [Zone], Rear), Mode Door(s) (Front, Rear), Recirculation Door Actuator(s)/circuit(s) are shorted low. (This will also set Blend Calibration/Overcurrent (Front, Rear), Mode Calibration/Overcurrent (Front, Rear), Recirculation Calibration/Overcurrent, Zone Calibration/Overcurrent DTCs.)

POSSIBLE CAUSES
- Check for additional HVAC DTCS
- Door actuator driver circuit open
- Common door driver circuit open
- Door actuator
- Door actuator/linkage/door
- A/C - heater control module