Are the resistances less than 3 ohms?
Yes | GO to R4 |
|---|---|
No | REPAIR the circuit in question. |
R4 CHECK FOR CORRECT PSCM (POWER STEERING CONTROL MODULE) OPERATION
Ignition OFF. Disconnect and inspect all the PSCM connectors and related in-line connectors. Repair:
corrosion (install new connector or terminals - clean module pins) damaged or bent pins - install new terminals/pins pushed-out pins - install new pins as necessary
Reconnect the PSCM connectors and related in-line connectors. Make sure they seat and latch correctly. Operate the system and determine if the concern is still present.
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, REFER to the EPAS Symptom Chart. Click here to access Guided Routine (EPAS). |
|---|---|
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. |
The Driver Seat Module (DSM) Does Not Respond To The Diagnostic Scan Tool
Refer to Wiring Diagrams Cell 14 for schematic and connector information.
Refer to Wiring Diagrams Cell 123 for schematic and connector information.
Normal Operation and Fault Conditions
The DSM communicates on the MS-CAN and communicates with the diagnostic scan tool through the HS-CAN2. Diagnostic messages are sent/received through the HS-CAN2 circuits at the DLC, and are translated through the GWM to the MS-CAN.
Possible Sources
Fuse Wiring, terminals and connector DSM
Visual Inspection and Diagnostic Pre-checks
Verify BJB fuse 12 (30A) and BCM fuse 2 (7.5A) are OK.
PINPOINT TEST S : THE DRIVER SEAT MODULE (DSM) DOES NOT RESPOND TO THE DIAGNOSTIC
SCAN TOOL
S1 CHECK THE DSM (DRIVER FRONT SEAT MODULE) VOLTAGE SUPPLY CIRCUITS FOR AN OPEN
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.