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.
Main Relay Inspection
- Disconnect negative cable at battery.
- Remove main relay (1) from relay box (2).
- Check for resistance between each two terminal. If check results are as specified, proceed to next operation check. If not, replace main relay.
Main relay resistance
Between "A" and "B": (infinity)
Between "C" and "D": 79-95 ohm at 20 °C (68 °F)
- Check for resistance between terminals "A" and "B" when battery is connected to terminals "C" and "D".
If check result is not specified, replace main relay.
Main relay resistance with turned on
Less than 1 ohm
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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