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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Memory Modules >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> U0025-Can B Bus (-) Circuit Low >> Possible Causes
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Possible Causes

Possible Causes 
(D54) CAN B BUS (-) CIRCUIT SHORTED TO GROUND OR TO (D55) CAN B BUS (+) CIRCUIT
ANY CAN B BUS MODULE
FRONT CONTROL MODULE (FCM)