Is the concern still present?
Yes | CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PCM. Refer to the appropriate section in Group 303 for the procedure. |
|---|---|
No | The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues. |
DTC U0101:00
Refer to Wiring Diagrams Cell 14 for schematic and connector information.
Normal Operation and Fault Conditions
The SODL and SODR communicate with the PCM through the GWM. The TCM is contained inside the PCM and cannot be serviced separately.
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
U0101:00 Lost Communication with TCM: No Sub Type Information | A continuous memory DTC that sets in in the SODL and SODR when messages received from the PCM over the HS-CAN1 through the GWM are missing for 2 seconds or more. |
Possible Sources
Communication network concern PCM GWM concern
PINPOINT TEST H : DTC (DIAGNOSTIC TROUBLE CODE) U0101:00
H1 VERIFY THE CUSTOMER CONCERN
Ignition ON. Verify there is an observable symptom present.
Is an observable symptom present?
Yes | GO to H2 |
|---|---|
No | The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. CLEAR the DTC. |
H2 CHECK THE COMMUNICATION NETWORK
Using a diagnostic scan tool, perform a network test.
Does the PCM pass the network test?
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.