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, Click here to access Guided Routine (BCM).. |
|---|---|
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 U0253:00
Refer to Wiring Diagrams Cell 14 for schematic and connector information.
Normal Operation and Fault Conditions
The PAM communicates with the APIM through the HS-CAN1, HS-CAN3 and GWM.
DTC Fault Trigger Conditions
DTC | Description | Fault Trigger Conditions |
|---|---|---|
U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | A continuous memory DTC that sets in the PAM if messages received from the APIM are missing for 5 seconds or more. |
Possible Sources
Communication network concern GWM concern APIM PAM (integral to the BCM)
PINPOINT TEST M : DTC (DIAGNOSTIC TROUBLE CODE) U0253:00
M1 VERIFY THE CUSTOMER CONCERN
Ignition ON. Verify there is an observable symptom present.
Is an observable symptom present?
Yes | GO to M2 |
|---|---|
No | The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition. CLEAR the DTC. |
M2 CHECK THE COMMUNICATION NETWORK
Using a diagnostic scan tool, perform the network test.
Does the APIM and the GWM pass the network test?
Yes | GO to M3 |
|---|
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.