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Home >> Jeep >> 2012 >> Liberty Limited Jet, 4WD, Part Time >> Repair and Diagnosis >> Transmission >> Transfer Case >> (Final Drive Control Module (FDCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0100-Lost Communication With The ECM/Pcm >> When Monitored:
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When Monitored:

Ignition run time is greater than one second.

Battery voltage between 9 and 16 volts.

Engine run time greater than three seconds.