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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1323 ((Powertrain Control Module (Pcm) - Electrical Diagnostics - 66RFE Automatic Transmission - 2500 Hd & 3500 Hd)) >> DTC Troubleshooting >> U0100-Lost Communication With The ECM/Pcm >> When Monitored

When Monitored

WARNING: This page is about a different car, the 2016 RAM 3500 HD and 2016 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Ignition on time is greater than one second.

Battery voltage between 9 and 16 volts.

Engine run time greater than three seconds.

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