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.
GO to JD8 . | REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test. |
JD8 CHECK THE CKP CIRCUITS FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) CKP Sensor Connector, Harness Side | ( - ) Vehicle Battery |
|---|---|
CKP+ | Negative terminal |
CKP- | Negative terminal |
Are the resistances greater than 10K ohms?
Yes | No |
|---|---|
GO to JD9 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
JD9 CHECK THE CKP CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) CKP Sensor Connector, Harness Side | ( - ) Vehicle Battery |
|---|---|
CKP+ | Negative terminal |
CKP- | Negative terminal |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to JD14 . |
JD10 CHECK FOR VOLTAGE AT THE SENSOR
• Ignition OFF.
• CKP Sensor connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) CKP Sensor Connector, Harness Side | ( - ) CKP Sensor Connector, Harness Side |
|---|---|
VREF | SIGRTN |
Is the voltage between 4.5 - 5.5 V?
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.