2004 Infiniti Q45FACTORY OEM SERVICE PROCEDURE

With CONSULT-II

  1. Turn ignition switch ON.
  2. Select "DATA MONITOR" mode with CONSULT-II.
  3. Check that "COOLAN TEMP/S" is above 10°C (50°F).

    If it is above 10°C (50°F), the test result will be OK. 

    If it is below 10°C (50°F), go to following step. 

  4. Start engine and run it for 65 minutes at idle speed.

    If "COOLAN TEMP/S" increases to more than 10°C (50°F) within 65 minutes, stop engine because the test result will be OK. 

  5. If DTC is detected, go to DTC Confirmation Procedure  .
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.