KP: Charge Air Cooler (CAC) KP: Introduction — 2016 workshop reference 5317

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.

INSTALL a new Charge Air Cooler (CAC) Coolant Temperature sensor.

REFER to the Workshop Manual Section 303- 14, Electronic Engine Controls. RESET the keep alive memory (KAM). REFER to Section 2, Resetting The Keep Alive Memory (KAM).

Clear the PCM DTCs. REPEAT the self-test.

KP9 CHECK THE PUMPPWR CIRCUIT FOR AN OPEN

• Ignition OFF.

• Charge Air Cooler (CAC) Pump connector disconnected.

• Ignition ON, engine OFF.

• Measure the voltage between:

( + ) Charge Air Cooler (CAC) Pump Connector, Harness Side	( - )
PUMPPWR - Pin 2	Ground

Is the voltage greater than 10.5 V?

Yes	No
GO to KP10 .	REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.

KP10 CHECK THE GND CIRCUIT FOR AN OPEN

• Ignition OFF.

• Measure the resistance between:

( + ) Charge Air Cooler (CAC) Pump Connector, Harness Side	( - )
GND - Pin 1	Ground

Is the resistance less than 5 ohms?

Yes	No
GO to KP11 .	REPAIR the open circuit. Clear the PCM DTCs. REPEAT the self-test.

KP11 CHECK THE CAC CIRCUIT FOR AN OPEN

• PCM connector disconnected.

• Measure the resistance between:

Source reference 5317

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.