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Jeep
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2009
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Commander Overland, RWD
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Repair and Diagnosis
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Transmission
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Transfer Case
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(Final Drive Control Module (FDCM) - Electrical Diagnostics)
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DTC Troubleshooting
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C1400-Transfer Case Range Select Switch Performance
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Possible Causes
Possible Causes
Possible Causes
(K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT OPEN
(K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K977) MODE SELECT CIRCUIT OPEN
(K977) MODE SELECT CIRCUIT SHORT TO GROUND
TRANSFER CASE SELECTOR SWITCH
FINAL DRIVE CONTROL MODULE