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 any communication concerns or communication DTCs present?
Yes | No |
|---|---|
For communication concerns in the PCM, DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to Section 4, Diagnostic Trouble Code (DTC) Charts and Descriptions. For communication concerns in other modules, REFER to the applicable Workshop Manual Section to DIAGNOSE the communication DTC. | GO to QE14 . |
QE11 CHECK FOR THE PRESENCE OF PCM DTCS
Note: An intermittent CKP sensor or harness concern may cause DTC P061A or P061B to set. Check for intermittent CKP sensor and harness concerns.
• Clear the PCM DTCs.
• Check for self-test DTCs.
Are any DTCs present other than P061A or P061B?
Yes | No |
|---|---|
DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO to Section 4, Diagnostic Trouble Code (DTC) Charts and Descriptions. | GO to QE13 . |
QE12 CARRY OUT A VISUAL INSPECTION
• Ignition OFF.
• Visually inspect the following for obvious signs of damage:
◾ ETB ◾ PCM
• Check the harness for routing, alterations, incorrect shielding, or electrical interference from other systems. Make sure aftermarket wiring is not routed near the PCM.
• Verify aftermarket equipment does not generate radio frequency interference or electromagnetic interference.
Is a concern present?
Yes | No |
|---|---|
ISOLATE the concern and REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | GO to QE15 . |
QE13 CHECK FOR MASS AIRFLOW (MAF) AND THROTTLE POSITION (TP) SENSOR CORRELATION CONCERNS
Note: For vehicles without a MAF sensor, follow the No answer.
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.