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Home >> Jeep >> 2009 >> Commander Overland, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> U0021-Can B Bus (+) Circuit Open >> Set Conditions

Set Conditions

Set Condition:
The Front Control Module (FCM) detects the (D55) CAN B Bus (+) circuit is open.

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