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 values out of range?
Yes | No |
|---|---|
GO to Z10 . | GO to Z7 . |
Z7 RECREATE THE SYMPTOM USING THE HOT IDLE ROAD TEST
Note: The engine temperature should be at least 87°C (189°F).
• Ignition ON, engine running.
• Continue to monitor the PIDs and circuits as in the previous step.
Are any values out of range?
Yes | No |
|---|---|
GO to Z10 . | GO to Z8 . |
Z8 RECREATE THE SYMPTOM DURING AN 48 KM/H (30 MPH) ROAD TEST
• Drive the vehicle on a preplanned route.
• Continue to monitor the PIDs and circuits as in the previous step.
Are any values out of range?
Yes | No |
|---|---|
GO to Z10 . | GO to Z9 . |
Z9 RECREATE THE SYMPTOM DURING AN 88 KM/H (55 MPH) ROAD TEST
• Continue to drive the vehicle on the preplanned route.
• Continue to monitor the PIDs and circuits as in the previous step.
Are any values out of range?
Yes | No |
|---|---|
GO to Z10 . | It is now necessary to physically disturb the selected vehicle circuits in an attempt to recreate the intermittent concern. GO to Z10 . |
Z10 SELECT THE CIRCUITS FROM THE PCM PIDS/SIGNALS CHART
Note: From the same chart, be sure to select and proceed with the appropriate test type.
Note: The Input Test step should be used on sensing inputs such as temperature, position or oxygen.
Note: The Output Test step should be used on output devices such as relays, coils or solenoids.
• Remain in the PID/Signal selection menu with the scan tool.
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.