Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2009 Ford Taurus SEFACTORY OEM SERVICE PROCEDURE

Relay - Mini ISO: Terminals

WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Relay - Mini ISO Terminal Identification

Courtesy of FORD MOTOR CO.

COMPONENT TESTING PROCEDURE

Circuit to test	Connect ohmmeter to terminals	A good relay will indicate
Coil	85 and 86	46-90?
Contact	30 and 87a	Closed circuit
Contact	30 and 87	Open circuit
Coil-Contact	86 and 30	Open circuit
	86 and 87a	Open circuit
	86 and 87	Open circuit

Factory Service Tools

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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.

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