Pinpoint Test U : DTC: U0100:00: 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 Diagrams Module Communications Network for schematic and connector information.
Normal Operation and Fault Conditions
The DSM or SCMB and the PCM communicate using the HS-CAN1 and MS-CAN.
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Conditions |
|---|---|---|
| U0100:00 | Lost Communication with ECM/PCM "A": No Sub Type Information | Set by the DSM or SCMB whenever it has lost communication to the PCM for 5 seconds or longer while DSM or SCMB input voltage is between 10 and 15.5 volts. |
Possible Causes
- Module communication
- DSM
- SCMB (Front Passenger Seat Control Module)
- PCM