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Home › Jeep › 2010 › Commander Limited, 4WD › Repair and Diagnosis › Engine Performance › Engine Control Systems › Front Control Module (FCM) - Electrical Diagnostics › DTC Troubleshooting › U0164-Lost Communication With HVAC Control Module › Possible Causes

Possible Causes

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