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.
2002 Infiniti Q45FACTORY OEM SERVICE PROCEDURE
Work Flow
- Check the symptom and customer's requests.
- Understand the outline of system. Refer to "SYSTEM DESCRIPTION ".
- Perform the preliminary check. Refer to "PRELIMINARY CHECK ".
- Perform the communication inspection. If CONSULT-II is used, Refer to "IVMS COMMUNICATION INSPECTION ". If CONSULT-II is not used, refer to COMMUNICATION DIAGNOSIS . Is the communication diagnosis result OK? If OK, GO TO step 7 . If NG, GO TO step 5.
- Repair or replace depending on the diagnosis result.
- Perform the communication diagnosis again. If CONSULT-II is used, Refer to "IVMS COMMUNICATION INSPECTION ". If CONSULT-II is not used, Refer to "COMMUNICATION DIAGNOSIS ". Is communication diagnosis result OK? If OK, GO TO step 7. If NG, GO TO step 5 .
- Referring to Trouble diagnosis chart, repair or replace the cause of the incident. Refer to "TROUBLE DIAGNOSIS CHART BY SYMPTOM ".
- Does the remote keyless entry system operate normally? If it operates normally, GO TO step 9. If NG, GO TO step 7 .
- Inspection end.
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.
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