Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Charger and 2015 Dodge Charger. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY DTC IS ACTIVE

Turn the ignition on.
With the scan tool, read the active DTCs.
Does the scan tool display; U0164-LOST COMMUNICATION WITH HVAC CONTROL MODULE as Active?

Yes
- Refer to DTC INDEX and perform the U0164-Lost Communication with HVAC Control Module.
No
- Refer to STORED LOST COMMUNICATION DTCS and perform the Stored Lost Communication DTCs diagnostic procedure.