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.
1997 Toyota T100 Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Circuit Opening Relay
- Ensure ignition is off. Remove circuit opening relay. See CIRCUIT OPENING RELAY LOCATION table. See Fig 1.CIRCUIT OPENING RELAY LOCATION
Application Relay Location 2.7L Behind Glove Box, Near Passenger's Side Kick Panel - To check circuit opening relay continuity, use ohmmeter to check continuity between specified terminals. See Fig 2.
- To check circuit opening relay operation, apply battery voltage and ground to relay and use ohmmeter to check continuity between specified terminals. See Fig 2. Replace circuit opening relay if defective.
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.