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.
FD10 CHECK THE SIGRTN CIRCUIT FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) BPP Switch Connector, Harness Side | ( - ) |
|---|---|
SIGRTN | Ground |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to FD11 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
FD11 CHECK THE CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• For F-150 3.5L,
• Measure the voltage between:
( + ) BPP Switch Connector, Harness Side | ( - ) |
|---|---|
SIGRTN | Ground |
• For all others,
• Measure the voltage between:
( + ) BPP Switch Connector, Harness Side | ( - ) |
|---|---|
GND | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | GO to FD12 . |
FD12 CHECK THE BPP SWITCH
• For F-150 3.5L,
• Measure the resistance between:
( + ) BPP Switch Connector, Component Side | ( - ) BPP Switch Connector, Component Side |
|---|---|
BPS | SIGRTN |
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.