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.
Are the resistances greater than 10K ohms?
Yes | No |
|---|---|
GO to DG4 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
DG4 CHECK THE KS CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) KS Connector, Harness Side | ( - ) |
|---|---|
Suspect KS+ | Ground |
Suspect KS- | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to DG5 . |
DG5 CHECK THE KS CIRCUIT FOR INTERMITTENT CONCERNS
• While observing the resistance, wiggle, shake, and bend small sections of the wiring harness working from the sensor to the PCM.
• Measure the resistance between:
( + ) KS Connector, Harness Side | ( - ) PCM Connector, Harness Side |
|---|---|
Suspect KS+ | Suspect KS+ |
Suspect KS- | Suspect KS- |
Are the resistances less than 5 ohms?
Yes | No |
|---|---|
For Edge 2.0L, Edge 2.7L, Escape/Kuga, Expedition, Explorer 2.3L, Explorer 3.5L GTDI, F-150 2.7L, F-150 3.5L GTDI, | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
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.