WARNING: This page is about a different car, the 2011 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.

MASTER WINDOW CONTROL SWITCH - COMPONENT TESTING

Circuit to test	Connect self-powered test light or ohmmeter to terminals	Move switch to these positions	A good switch will indicate
Switch lock	2, C504a and 2, C504b	Unlock	Closed circuit
Switch lock	2, C504a and 2, C504b	Lock	Open circuit
Left front window circuit	2, C504a and 5, C504a	Up	Closed circuit
Passenger front window circuit	2, C504a and 8, C504a	Up	Closed circuit
	2, C504a and 3, C504a	Down	Closed circuit
	7, C504b and 8, C504a 7, C504b and 3, C504a	Rest	Closed circuit
Left rear window circuit	2, C504a and 6, C504b	Up	Closed circuit
	2, C504a and 1, C504b	Down	Closed circuit
	7, C504b and 6, C504b 7, C504b and 1, C504b	Rest	Closed circuit
Right rear window circuit	2, C504a and 8, C504b	Up	Closed circuit
	2, C504a and 4, C504b	Down	Closed circuit
	7, C504b and 8, C504b 7, C504b and 4, C504b	Rest	Closed circuit

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Component testing procedure

Use the Manual With the Right Hardware

When to See a Mechanic

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