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.
2012 Infiniti FX50FACTORY OEM SERVICE PROCEDURE
Ignition Switch Position Change Table By Push-Button Ignition Switch Operation
WARNING: This page is about a different car, the 2011 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
The ignition switch position can be changed by performing the following operations.
NOTE:
- When an Intelligent Key is within the detection area of inside key antenna, and when it is inserted to the key slot, it is equivalent to the operations below.
- When starting engine, BCM checks the following conditions and then changes the ignition switch position.
- Brake pedal operating condition
- Selector lever position
- Vehicle speed
- This models do not have the steering lock system. However, the ignition switch position changes to the LOCK position and LOCK indicator illuminates without steering lock operation when the following conditions are fulfilled.
- Ignition switch: OFF
- Selector lever position: P
- Any of the following condition is met
- Opening door
- Closing door
- Door is locked by request switch operation
- Door is locked by Intelligent Key operation
Vehicle speed: less than 4 km/h (2.5 MPH)
ENGINE START/STOP CONDITION CHART
| Power supply position | Engine start/stop condition | Push-button ignition switch operation frequency | |
|---|---|---|---|
| Selector lever | Brake pedal operation condition | ||
| LOCK → ACC | - | Not depressed | 1 |
| LOCK → ACC → ON | - | Not depressed | 2 |
| LOCK → ACC → ON → OFF | - | Not depressed | 3 |
| LOCK → START ACC → START ON → START |
P or N position | Depressed | 1 |
| Engine is running → OFF | - | - | 1 |
Vehicle speed: 4 km/h (2.5 MPH) or more
ENGINE START/STOP CONDITION CHART
| Power supply position | Engine start/stop condition | Push-button ignition switch operation frequency | |
|---|---|---|---|
| Selector lever | Brake pedal operation condition | ||
| Engine is running → ACC | - | - | Emergency stop operation |
| Engine stall return operation while driving | N position | Not depressed | 1 |
Emergency stop operation
- Press and hold the push-button ignition switch for 2 seconds or more.
- Press the push-button ignition switch 3 times or more within 1.5 seconds.
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.