Blend Door Output Shorted To Ground - Chrysler Concorde 2004 Service Manual

HEATING & A/C
Symptom:

BLEND DOOR OUTPUT SHORTED TO GROUND

When Monitored and Set Condition:
BLEND DOOR OUTPUT SHORTED TO GROUND
When Monitored: Whenever the BCM attempts to move one of the HVAC actuators.
Set Condition: When the BCM detects one or more of the following outputs shorted to
ground: mode door driver, blend door driver, recirculation door driver or the common door
driver.
BLEND AIR DOOR DRIVER CIRCUIT SHORT TO GROUND
BLEND AIR DOOR DRIVER CKT SHORT TO SENSOR GROUND
BLEND AIR DOOR DRIVER WIRE SHORT TO SENSOR GROUND
BLEND DOOR ACTUATOR
TEST
1 Turn all lights off. Close the driver door latch to turn courtesy lamps off.
Disconnect the Body Control Module C1 harness connector.
Measure the resistance between ground and the Blend Air Door Driver circuit.
Is the resistance below 5.0 ohms?
Yes → Repair the Blend Air Door Driver circuit for a short to ground.
No
2 Disconnect the Body Control Module C1 harness connector.
Measure the resistance between the Blend Air Door Driver circuit and the Sensor
Ground circuit in the BCM C1 connector.
Is the resistance below 5.0 ohms?
Yes → Go To 3
No
POSSIBLE CAUSES
ACTION
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
→ Go To 2
→ Replace the Body Control Module.
Calibration must be performed after repair/replacement is com-
pleted.
Perform BODY VERIFICATION TEST - VER 1.
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APPLICABILITY
All
All