Recirc Door Output Shorted To Ground
NOTE:
After making any repairs, perform BODY VERIFICATION TEST
under VERIFICATION TESTS.
NOTE:
After repair or replacement is completed, calibration must be performed. See AUTOMATIC A/C-HEATER SYSTEMS - CONCORDE, INTREPID & 300M
article in HVAC.
Monitored & Set Condition
- 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.
Possible Causes:
- Recirculation Door Driver Circuit Short To Ground
- Body Control Module
Testing
- Turn all lights off. Close the driver door latch to turn courtesy lights off. Disconnect the BCM C1 harness connector. See Figure . Measure the resistance between ground and recirculation door driver circuit. If the resistance is 5 ohms or less, repair the recirculation door driver circuit for a short to ground. If the resistance is 5 ohms or more, replace the BCM. See BODY CONTROL MODULE under REMOVAL & INSTALLATION.