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.
2004 Infiniti M45FACTORY 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?
- OK: GO TO step 7
- 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?
- OK: GO TO step 7
- 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?
- YES: GO TO step 9
- NO: 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.