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.
A: No Start
A: Introduction
A1 ATTEMPT TO CRANK THE ENGINE
Note: Verify the inertia fuel shutoff (IFS) switch is set (button pushed in). Refer to the Owner's Literature for location.
Does the engine crank?
Yes | No |
|---|---|
GO to A2 . |
A2 IDENTIFY THE TYPE OF NO START
Note: The purpose of this test step is to identify intermittent no starts in order to determine the correct repair procedure.
Does the vehicle start?
Yes | No |
|---|---|
The vehicle has an intermittent no start. GO to Pinpoint Test Z . | For DTCs P0320 or P0322, GO to Pinpoint Test JD . For all others, GO to A3 . |
A3 CHECK VREF VOLTAGE TO THE ETBTPS
• Ignition OFF.
• ETBTPS connector disconnected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) ETBTPS Connector, Harness Side | ( - ) ETBTPS Connector, Harness Side |
|---|---|
ETCREF | ETCRTN |
Is the voltage between 4.5 - 5.5 V?
Yes | No |
|---|---|
GO to A4 . | GO to Pinpoint Test C . |
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.