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.
2010 Infiniti M45 BaseFACTORY OEM SERVICE PROCEDURE
Overall Function Check
Use this procedure to check the overall function of the park/neutral position (PNP) signal circuit. During this check, a 1st trip DTC might not be confirmed.
WITH GST
- Turn ignition switch ON.
- Check voltage between ECM terminal 102 (PNP switch signal) and ground under the following conditions.SELECTOR LEVER POSITION CHART
Selector lever position Voltage (Known-good data) P or N position Approx. 0 V Except above position BATTERY VOLTAGE (11 - 14 V) - If NG, go to "DIAGNOSIS 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.
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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.