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.
2000 Infiniti I30 Base, RE4F04BFACTORY OEM SERVICE PROCEDURE
Dome Light Function Check
- Check for correct dome light operation. Turn interior light switch to DOOR position, open any door and observe dome light. If dome light operates correctly, go to next step. If dome light does not operate correctly, see appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article.
- With interior light switch in DOOR position, measure voltage by backprobing between SECU 18-pin connector terminal No. 8 (Red/Blue wire) and ground. If battery voltage is present, go to next step. If battery voltage is not present, inspect Red/Blue or Gray/Red wire between SECU and interior light switch for open or short.
- Measure voltage between SECU terminal No. 8 and ground. Battery voltage should be present. Depress UNLOCK button on remote control. Battery voltage should not be present for about 30 seconds. If voltage is as specified, retest system. If voltage is not as specified, replace SECU.
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.