Mode 1 Calibration Fault

Test 1 - 3:

Test 4 - 6:

SYMPTOM
MODE 1 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 1 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
- Check for actuator circuit test fault messages
- Check for HVAC DTCs
- Door actuator driver circuit open
- Common door driver circuit open
- Door actuator
- Door actuator/linkage/door
- A/C - Heater control module