LEMON Manuals
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Jeep
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2009
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Commander Overland, RWD
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Repair and Diagnosis (Single Page)
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Engine Performance
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Ignition System
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Front Control Module (FCM) - Electrical Diagnostics
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DTC Troubleshooting
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U0022-Can B Bus (+) Circuit Low
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Possible Causes
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Possible Causes
Possible Causes
(D55) CAN B BUS (+) CIRCUIT SHORTED TO GROUND
ANY CAN B BUS MODULE
FRONT CONTROL MODULE (FCM)