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.
1990 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE
Vehicle Speed Sensor Test
- Raise one rear wheel off the ground and secure vehicle. Release parking brake and place transmission in Neutral. Disconnect wiring connector from EFI ECU, located behind glove box.
- Attach ohmmeter positive lead to connector terminal and negative lead to ground. See Fig 3. Ensure ohmmeter probe is inserted from rear side of connector. Turn rear wheel and monitor ohmmeter. Ohmmeter needle should deflect consistently.
- If ohmmeter does not deflect, check that vehicle speed sensor terminals at rear of speedometer are properly connected. If connection is okay, replace speedometer assembly.
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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