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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Memory Seat Module (MSMD) - 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
A/C HEATER CONTROLS POWER AND GROUND
FCM NOT CONFIGURED CORRECTLY
A/C HEATER CONTROL
MODULE THAT SET THIS DTC
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