U0100 - Lost Communication With Electronic Control Module (ECM)/Powertrain Control Module (Pcm)
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Ford RV Cutaway, 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
U0100 - LOST COMMUNICATION WITH ELECTRONIC CONTROL MODULE (ECM)/POWERTRAIN CONTROL MODULE (PCM)
| Description: | This DTC is set when the PCM can not communicate with the transmission control module (TCM). | |||
| Possible Causes: |
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| Diagnostic Aids: | Network DTC concerns occur during module-to-module communication. For additional description and operation of the vehicle communication network, refer to appropriate MODULE COMMUNICATIONS NETWORK article. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory | |
| All | Clear the DTCs. Repeat the self-test. If the DTC is retrieved again, install a new PCM. | |||