Vehicle applicability: This diagnostic supplement covers multiple Ford vehicles and engines. Follow the application named in the source below. Some references apply to vehicles other than Mustang.
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | For DTC P0068, CHECK for an intermittent concern with an ETC related harness or sensor. GO to Pinpoint Test Z . For all others, GO to QE14 . |
QE14 CHECK FOR ANTILOCK BRAKING SYSTEM (ABS) AND WHEEL SPEED SENSOR CONCERNS
• Ignition ON, engine running.
• Access the PCM and monitor the VSS (SPD) PID.
• Access the ABS and monitor the LF_WSPD (SPD), LR_WSPD (SPD), RF_WSPD (SPD) and RR_WSPD (SPD) PIDs.
• Road test the vehicle under various load conditions while comparing the PIDs. Check for signals that are intermittent or do not correspond.
Do the PID values correspond with the vehicle operating conditions?
Yes | No |
|---|---|
CHECK for an intermittent concern with an ETC related harness or sensor. GO to Pinpoint Test Z . | REFER to the Workshop Manual Section 206- 09, Vehicle Dynamic Systems, to DIAGNOSE any ABS concerns. |
QE15 CHECK FOR CORRECT PCM OPERATION
• Disconnect all the PCM connectors.
• Visually inspect for:
◾ pushed out pins ◾ corrosion
• Connect all the PCM connectors and make sure they seat correctly.
• Carry out the PCM self-test.
• Verify the concern is still present.
Is the concern still present?
Yes | No |
|---|---|
INSTALL a new PCM. REFER to Section 2, Flash Electrically Erasable Programmable Read Only Memory (EEPROM), Programming the VID Block for a Replacement PCM. | The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. |
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.