No | The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. |
|---|
U0253:00
Normal Operation and Fault Conditions
REFER to: Information and Entertainment System - System Operation and Component Description (415-00A Information and Entertainment System - General Information - Vehicles With: AM/FM/CD/SYNC, Description and Operation). See Network Message Chart.
DTC Fault Trigger Conditions
Description | Fault Trigger Conditions |
|---|---|
U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information | Set by the ACM, FCDIM, and FCIM when network messages are missing from the APIM for more than 5 seconds with the ignition in RUN. |
DTC
Possible Source
APIM
PINPOINT TEST AN : U0253:00
AN1 VERIFY THE CUSTOMER'S CONCERN
Ignition ON. Verify there is an observable symptom present.
Is an observable symptom present?
Yes | GO to AN2 |
|---|---|
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. |
AN2 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00
Ignition ON. Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs). Ignition OFF. Ignition ON. Wait at least 10 seconds. Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
Is DTC U0253:00 set in the ACM or FCIM?
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.