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
Hazard Reminder Check
- Check for correct hazard light operation. Turn hazard light switch to ON position and observe hazard lights. If hazard lights operate correctly, go to next step. If hazard lights do not operate correctly, see appropriate wiring diagram in EXTERIOR LIGHTS article.
- Turn ignition switch to OFF position. Disconnect Smart Entrance Control Unit (SECU) 18-pin connector and apply ground to terminal No. 7 (Pink wire). See Figure . If hazard indicator does not illuminate, go to next step. If hazard indicator illuminates, replace SECU.
- Check multi-remote control relay operation. See MULTI-REMOTE CONTROL RELAY under COMPONENT TESTS. If multi-remote control relay operates correctly, go to next step. If multi-remote control relay does not operate correctly, replace multi-remote control relay.
- Disconnect multi-remote control relay from 6-pin connector. Measure voltage between ground and terminal No. 1 (Green/Orange wire) on relay connector. See Figure
. If battery voltage is present, go to next step. If battery voltage is not present, inspect the following:
- Fuse No. 5 (15-amp) located in fuse block J/B under left side of instrument panel.
- Green/Orange wire between multi-remote control relay and fuse No. 5 for an open or short.
- With multi-remote control relay disconnected, measure voltage between multi-remote control relay harness connector terminals No. 3 and 5. Also, measure voltage between terminals No. 6 and 7. If battery voltage is present, inspect Pink wire between multi-remote control relay and SECU for an open or short. If battery voltage is not present between one or both measurements, go to next step.
- If battery voltage is not present between terminals No. 3 and 5, inspect Green/Orange wire between multi-remote control relay and fuse No. 5, or Green/Yellow wire between multi-remote control relay and right turn signal light. If battery voltage is not present between terminals No. 6 and 7, inspect Green/Orange wire between multi-remote control relay and fuse No. 5, or Green/Black wire between multi-remote control relay and left turn signal light.
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.