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 Q45FACTORY OEM SERVICE PROCEDURE
Throttle Control Motor
- Disconnect electric throttle control actuator harness connector.
- Check resistance between terminals 3 and 6.
- Resistance: Approximately 1 - 15 Ξ© [at 25 Β°C (77Β°F)]Β
- If NG, replace electric throttle control actuator and go to next step.
- Perform ACCELERATOR PEDAL RELEASED POSITION LEARNINGΒ
- Perform THROTTLE VALVE CLOSED POSITION LEARNINGΒ .
- Perform IDLE AIR VOLUME LEARNINGΒ .
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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