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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Electronic Control Modules - Electrical Diagnostics) >> Electronic Control Modules - Electrical Diagnostics >> DTC Troubleshooting >> U0252-Lost Communication With Trailer Lighting Module >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2008 Jeep Commander. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
CAN B BUS CIRCUITS OPEN
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
FCM NOT CONFIGURED CORRECTLY
(A114) FUSED B(+) CIRCUIT OPEN OR SHORTED
(Z909) GROUND CIRCUIT OPEN
TRAILER LIGHTING MODULE (TM)
FRONT CONTROL MODULE