Recirculation Calibration Fault
Test 1 - 2:
Tests 3 - 6:
SYMPTOM
RECIRCULATION 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 recirculation 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