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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 ((Front Control Module (FCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U0169-Lost Communication With Sunroof Control Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
CAN B BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
FCM NOT CONFIGURED CORRECTLY
SUNROOF MOTOR/MODULE POWER AND GROUND
SUNROOF MOTOR/MODULE
MODULE THAT SET THIS DTC
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