Pinpoint Test G : DTC U0100: Notes
WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
| Refer to Wiring Diagram
for schematic and connector information. Normal Operation and Fault Conditions The TCM sets one or more of the DTC U0100 when it has not received messages for more than 5 seconds from the PCM. Other modules that require data from the PCM all set communication DTCs and may also exhibit system function concerns. DTC Fault Trigger Conditions |
|---|
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| TCM U0100:00 | Lost Communication With ECM/PCM "A": No Sub Type Information | Sets in continuous memory in the TCM if powertrain data messages received from the PCM over the HS-CAN are missing for longer than 5 seconds. |
Possible Sources
Communication concern
Battery voltage concern
PCM
TCM