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Home >> Jeep >> 2016 >> Wrangler Rubicon, Automatic Trans >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> U0100-Lost Communication With The ECM/Pcm >> When Monitored

When Monitored

Ignition run time is greater than one second.

Battery voltage between 9 and 16 volts.

Engine run time greater than three seconds.