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 QX56 AWDFACTORY OEM SERVICE PROCEDURE
With GST
NOTE:
Be sure to read the explanation of Figure before driving vehicle.
- Start engine.
- Drive vehicle according to Figure.
- Stop vehicle.
- Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
- Select MODE 7 with GST.
- If P0455 is displayed on the screen, go to DIAGNOSTIC PROCEDURE .
- If P0442 is displayed on the screen, go to DIAGNOSTIC PROCEDURE .
- If P0441 is displayed on the screen, go to DIAGNOSTIC PROCEDURE .
Factory Service Tools
Use the Manual With the Right Hardware
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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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