Blend Door Stall Test Failure - ATC & MTC

Test 1 - 3:

Test 4 - 5:

Test 6 - 9:

Test 10 - 13:

Test 14 - 17:

Test 18 - 21:

Test 22 - 23:

SYMPTOM
BLEND DOOR FEEDBACK FAILURE - ATC & MTC
BLEND DOOR STALL TEST FAILURE - ATC & MTC

TEST NOTE: All symptoms listed above are diagnosed using the same tests. The title for the tests will be BLEND DOOR FEEDBACK FAILURE - ATC & MTC

BLEND DOOR FEEDBACK FAILURE - ATC & MTC

WHEN MONITORED
With ignition on.

SET CONDITION
This DTC will set if the BCM detects voltage below 0.06 volts or above 4.8 volts on the Blend Door Feedback Signal input/Mode Door Feedback Signal input.

BLEND DOOR STALL TEST FAILURE - ATC & MTC

WHEN MONITORED
During HVAC motor calibration.

SET CONDITION
This DTC will set if the BCM is unable to detect the end of travel for the blend door.

POSSIBLE CAUSES
- SUN OR IN CAR TEMPERATURE SENSOR FAILURE
- SUN SENSOR SHORTED
- SUN SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
- BODY CONTROL MODULE
- CHECK CODE(S) PRESENT
- MODE DOOR FEEDBACK/STALLTEST FAILURE DTC PRESENT
- ADDITIONAL FEEDBACK/STALL TEST FAILURE DTCS PRESENT
- BLEND DOOR FEEDBACK SIGNAL CIRCUIT SHORTED TO THE DOOR DRIVER CIRCUIT(S)
- BLEND DOOR, LINKAGE, ACTUATOR
- BLEND DOOR DRIVER CIRCUIT OPEN
- COMMON DOOR DRIVER CIRCUIT OPEN
- BODY CONTROL MODULE
- SENSOR GROUND CIRCUIT OPEN
- ODY CONTROL MODULE
- 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
- 5 VOLT SUPPLY CIRCUIT OPEN
- 5 VOLT SUPPLY CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
- BODY CONTROL MODULE
- BLEND DOOR, LINKAGE, ACTUATOR
- BLEND DOOR FEEDBACK SIGNAL CIRCUIT SHORTED TO GROUND
- BLEND DOOR FEEDBACK SIGNAL CIRCUIT OPEN
- BLEND DOOR FEEDBACK SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
- BODY CONTROL MODULE
- 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
- BLEND DOOR FEEDBACK SIGNAL CIRCUIT SHORTED TO VOLTAGE
- BODY CONTROL MODULE
- WIRING CAUSING INTERMITTENT CONDITION