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.
DD15 CHECK THE FRT CIRCUIT FOR A SHORT TO GROUND
( + ) FRPT Sensor Connector, Harness Side | ( - ) |
|---|---|
FRT - Pin 5 | Ground |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to DD16 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
DD16 CHECK THE FRT CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• Measure the voltage between:
( + ) FRPT Sensor Connector, Harness Side | ( - ) |
|---|---|
FRT - Pin 5 | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to DD17 . |
DD17 CHECK THE FRT CIRCUIT FOR AN INTERMITTENT CONCERN
• Ignition OFF.
• PCM connector connected.
• FRPT Sensor connector connected.
• Ignition ON, engine OFF.
• Access the PCM and monitor the FRT_V (VOLT) PID.
• While observing the PID, carry out the following:
◾ Tap on the sensor to simulate road shock ◾ Wiggle the sensor connector ◾ Wiggle, shake, and bend small sections of the wiring harness while working from the
sensor to the PCM
• Check the connector for damage or corrosion.
Is a concern present?
Yes | No |
|---|---|
REPAIR as necessary. Clear the PCM DTCs. REPEAT the self-test. | INSTALL a new FRPT sensor. REFER to the fuel system WARNING information at the beginning of Pinpoint Test HC. GO to Pinpoint Test HC . REFER to the |
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.