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.
1994 Toyota Pickup BaseFACTORY OEM SERVICE PROCEDURE
EFI Main Relay
- Ensure ignition is off. Remove EFI main relay. See EFI MAIN RELAY LOCATION table. Using ohmmeter, check continuity between specified terminals. See Fig 1-19.
- Check EFI main relay operation by applying battery voltage and ground and checking continuity between specified terminals. See Fig 1-19. Replace EFI main relay if defective.
NOTE:
The EFI main relay may also be identified using appropriate illustration in THEORY/OPERATION
article or wire color. See appropriate wiring diagram in WIRING DIAGRAMS
article.
EFI MAIN RELAY LOCATION
| Application | Location |
|---|---|
| Pickup | Fuse/Relay Box Near Passenger's Side Front Corner Of Engine Bay |
Factory Service Tools
Use the Manual With the Right Hardware
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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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