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.
DP: Output Shaft Speed (OSS) Sensor/Vehicle
DP: Introduction
Speed Sensor (VSS)
DP1 CHECK FOR DTCS
Note: For vehicles with automatic transmission and OSS sensor DTCs, refer to the Workshop Manual Section 307-01, Diagnostic Trouble Code (DTC) Charts.
Are DTCs P0500, P0503, P0720, P0721, P0722, P0723, P1500, P1502, P1900, P1934 or P193F present?
Yes | No |
|---|---|
GO to DP2 . | RETURN to Section 3 , Symptom Charts for further direction. |
DP2 VERIFY THE DRIVE CYCLE
• Access the PCM and monitor the OSS_SRC (RPM) PID.
• Access the PCM and monitor the VSS (SPD) PID.
• Drive the vehicle.
• Monitor both of the PIDs in all transmission gear ranges while increasing and decreasing the speed.
Do both PID readings increase and decrease with engine and vehicle speed?
Yes | No |
|---|---|
GO to DP3 . | GO to DP4 . |
DP3 VISUAL INSPECTION
• OSS Sensor connector disconnected.
• Inspect the OSS sensor harness for damage.
• Inspect the OSS harness connector for damage and correct seating.
• Carry out a thorough wiggle test on the OSS harness.
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | GO to Pinpoint Test Z . |
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.