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Home >> Jeep >> 2012 >> Compass Limited, AWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Cabin Compartment Node (CCN) - Electrical Diagnostics >> DTC Troubleshooting >> U0164-Lost Communication With HVAC Control Module >> Possible Causes
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Possible Causes

Possible Causes 
CAN BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
A/C HEATER CONTROLS POWER AND GROUND
TIPM NOT CONFIGURED CORRECTLY
A/C HEATER CONTROL
MODULE THAT SET THIS DTC
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