Head Status RX Failure

WARNING: This page is about a different car, the 2002 Dodge Intrepid, 2002 Chrysler Intrepid, 2002 Chrysler Concorde, and 2002 Chrysler 300M. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After making any repairs, perform BODY VERIFICATION TEST under VERIFICATION TESTS.

Possible Causes:

Check BCM Codes
Automatic Temperature Control Head
Harness/Intermittent Wiring

Testing

Turn ignition on. With the scan tool, read the BCM DTC's. If the head status RX failure code set, see COMMUNICATIONS for the appropriate symptom. If the code did not set, go to next step.
With the scan tool, erase the ATC head DTC's. Cycle the ignition switch from OFF to ON position. With the scan tool, read the ATC head DTC's. If the head status failure code sets, replace the automatic temperature control head. See AUTOMATIC A/C-HEATER SYSTEMS - CONCORDE, INTREPID & 300M article in HVAC. If the code does not set, see WIRING DIAGRAMS for possible intermittent wiring problem.