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Home › Jeep › 2009 › Commander Overland, RWD › Repair and Diagnosis › Transmission › Transfer Case › (Final Drive Control Module (FDCM) - Electrical Diagnostics) › DTC Troubleshooting › C1420-Rear Differential Control Circuit Current Performance › Monitor Conditions

Monitor Conditions

When Monitored:
The ignition on. No Solenoid DTCs present.