LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chrysler >> 2012 >> 300 C, RWD >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Transmission Control Module (TCM) - Nag1 Automatic Transmission >> Diagnosis And Testing >> U0164-Lost Communication With HVAC Control Module >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Possible Causes

Possible Causes
CAN BUS (+) CIRCUIT SHORTED TO VOLTAGE
CAN BUS (-) CIRCUIT SHORTED TO GROUND
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BODY CONTROL MODULE (BCM) NOT CONFIGURED CORRECTLY
HVAC POWER AND GROUND
HVAC CONTROL MODULE
MODULE THAT SET THE DTC