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.
KF6 CHECK THE CACCF AND LFC CIRCUIT FOR A SHORT TO GROUND
• Measure the resistance between:
( + ) Charge Air Cooler Cooling Fan Relay Connector, Harness Side | ( - ) |
|---|---|
CACCF - Pin 2 | Ground |
• For all others,
• Measure the resistance between:
( + ) FC1 Relay Connector, Harness Side | ( - ) |
|---|---|
LFC | Ground |
Is the resistance greater than 10K ohms?
Yes | No |
|---|---|
GO to KF7 . | REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. |
KF7 CHECK THE CACCF AND LFC CIRCUIT FOR A SHORT TO VOLTAGE
• Ignition ON, engine OFF.
• For DTCs P028D or P028E,
• Measure the voltage between:
( + ) Charge Air Cooler Cooling Fan Relay Connector, Harness Side | ( - ) |
|---|---|
CACCF - Pin 2 | Ground |
• For all others,
• Measure the voltage between:
( + ) FC1 Relay Connector, Harness Side | ( - ) |
|---|---|
LFC | Ground |
Is any voltage present?
Yes | No |
|---|---|
REPAIR the short circuit. Clear the PCM DTCs. REPEAT the self-test. | For Ecosport, Focus 1.0L, Fiesta 1.6L TIVCT and KA, GO to KF18 . For DTCs P028D, P028E, or P0480, GO to KF23 . For all others, GO to KF8 . |
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.