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.

1996 Toyota Corolla Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Circuit Opening Relay

Ensure ignition is off. Remove circuit opening relay. See CIRCUIT OPENING RELAY LOCATION table.

NOTE: Circuit opening relay may also be identified using appropriate illustration in THEORY/OPERATION article and wire color. See appropriate wiring diagram in WIRING DIAGRAMS article.

CIRCUIT OPENING RELAY LOCATIONS

Application	Relay Location
Corolla	Bottom Center Of Instrument Panel, In Front Of Center Console, Near Driver's Side Of ECM

To test circuit opening relay continuity, using ohmmeter, check continuity between specified terminals. See Fig 1 and Fig 2.
To test circuit opening relay operation, apply battery voltage and ground to relay and use ohmmeter to check continuity between specified terminals. See Fig 1 and Fig 2. Replace circuit opening relay if defective.

Fig 1: Testing Circuit Opening Relay - Checking Continuity

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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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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