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.
HD4 CHECK FOR OTHER NON-MISFIRE CONTINUOUS MEMORY DTCS
• Retrieve the PCM continuous memory DTCs.
Are there any non-misfire continuous memory DTCs present?
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 HD5 . |
HD5 CHECK FOR ANY KOEO SELF-TEST DTCS
• Carry out the PCM KOEO self-test.
Are any KOEO DTCs present?
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 HD6 . |
HD6 CHECK FOR ANY KOER DTCS
• Carry out the PCM KOER self-test.
Are any KOER DTCs present?
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 HD7 . |
HD7 CYLINDER POWER BALANCE TEST
Note: The IDS test referenced in this step may not be available on all vehicles. Follow the YES answer if the IDS test is not available.
• Carry out the Power Balance Test. Refer to the instruction manual provided by the scan tool manufacturer.
Are all cylinders contributing correctly during the power balance test?
Yes | No |
|---|---|
GO to HD9 . | GO to HD8 . |
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.