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.
DR: Camshaft Position (CMP) Sensor
DR: Introduction
DR1 CHECK FOR DTCS
Are DTCs P0340, P0341, P0344, P0345, P0346, P0349, P0365, P0366, P0369, P0390, P0391, or
P0394 present?
Yes | No |
|---|---|
For vehicles with DTCs and a no crank or no start symptom, GO to DR5 . For all others, GO to DR2 . | For symptoms without DTCs, GO to DR2 . For all others, RETURN to Section 3 , Symptom Charts for further direction. |
DR2 INSPECT THE HARNESS
• Ignition OFF.
• Check the harness for routing, alterations, incorrect shielding, or electrical interference from other systems.
• Check the CMP connector for damage or corrosion.
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | GO to DR3 . |
DR3 CLEAR AND ATTEMPT TO RETRIEVE THE DTC
Note: Consider the ignition system, alternator noise, radio frequency interference and crankshaft position (CKP) sensor concerns if DTCs P0340, P0341, P0344, P0345, P0346, P0349, P0365, P0366, P0369, P0390, P0391, or P0394 are present.
Note: For vehicles with variable camshaft timing (VCT), concerns with the engine oil level, oil filter, oil contamination, or the VCT system may cause camshaft positioning errors.
• Ignition ON, engine OFF.
• Clear the PCM DTCs.
• Ignition ON, engine running.
• Increase engine speed to greater than 1,500 RPM for 10 seconds. Repeat this 3 times.
• Carry out the PCM self-test.
Are DTCs P0340, P0341, P0344, P0345, P0346, P0349, P0365, P0366, P0369, P0390, P0391 or
P0394 present?
Yes | No |
|---|---|
GO to DR4 . |
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.