No | GO to F5 |
|---|
F5 CHECK FOR OTHER CAUSES OF COMMUNICATION NETWORK CONCERN
NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.
Check the vehicle service history for recent service actions related to the VDM or ABS module. If recent service history is found:
verify the correct replacement module was installed.
HVBOM may be used to verify correct part fitment.
verify the configuration of replacement module was correct.
re-configure the module using as-built data if prior configuration is suspect.
verify the module was not obtained from a like vehicle and installed into customer vehicle.
return the swapped module to source vehicle and obtain new replacement module.
Operate the system and determine if the observable symptom is still present.
Is the observable symptom still present?
Yes | GO to F6 |
|---|---|
No | The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration. |
F6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0121:XX SET IN OTHER MODULES
Using a diagnostic scan tool, carry out the self-test for all modules.
Is DTC U0121:xx set in 1 or more modules in addition to the VDM?
Yes | CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new ABS module. REFER to: Anti-Lock Brake System (ABS) Module (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation). |
|---|---|
No | GO to F7 |
F7 VERIFY ALL WIRING CONNECTIONS
Ignition OFF. Disconnect all VDM electrical connectors and related in-line electrical connectors. Using a good light source, inspect all disconnected electrical connectors for the following:
corrosion - install new connector or terminal and clean the module pins damaged or bent pins - install new terminals or pins pushed-out pins - install new pins as necessary spread terminals - install new terminals as necessary
Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals?
Yes | GO to F8 |
|---|---|
No | REPAIR the connector or terminals. Refer to Wiring Diagrams Cell 5 for schematic and connector information. |
F8 CHECK FOR CORRECT VDM (VEHICLE DYNAMICS CONTROL MODULE) OPERATION
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.