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.
( + ) APP Sensor Connector, Harness Side | ( - ) |
|---|---|
APPVREF1 | Ground |
APPVREF2 | Ground |
Are the voltages between 4.5 - 5.5 V?
Yes | No |
|---|---|
GO to C9 . | INSTALL a new ETBTPS. REFER to the Workshop Manual Section 303-04, Fuel Charging and Controls or Section 303-14, Electronic Engine Controls. Clear the PCM DTCs. REPEAT the self-test. |
C9 CHECK THE REFERENCE VOLTAGE WITH THE APP SENSOR CONNECTED
Note: If this sensor was used for the measurement in C3, GO to C10 .
• Ignition OFF.
• APP Sensor connector connected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) ETBTPS Connector, Harness Side | ( - ) |
|---|---|
ETCREF | Ground |
Is the voltage between 4.5 - 5.5 V?
Yes | No |
|---|---|
GO to C10 . | INSTALL a new APP sensor. REFER to the Workshop Manual Section 310-02, Acceleration Control. Clear the PCM DTCs. REPEAT the self-test. |
C10 CHECK THE REFERENCE VOLTAGE WITH THE MAP SENSOR CONNECTED
Note: If the vehicle is not equipped with a MAP sensor or if this sensor was used for the VREF measurement in C3, GO to C11 .
• Ignition OFF.
• MAP Sensor connector connected.
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) Suspect Sensor Connector, Harness Side | ( - ) |
|---|---|
VREF | Ground |
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.