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
Component Description
| Name | Function | ||
|---|---|---|---|
| TCM | The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The TCM controls the A/T. | ||
| Transmission range switch | "DESCRIPTION " | ||
| Output speed sensor | "DESCRIPTION " | ||
| Input speed sensor 1 | "DESCRIPTION " | ||
| Input speed sensor 2 | |||
| A/T fluid temperature sensor | "DESCRIPTION " | ||
| Input clutch solenoid valve | "DESCRIPTION " | ||
| Front brake solenoid valve | "DESCRIPTION " | ||
| Direct clutch solenoid valve | "DESCRIPTION " | ||
| High and low reverse clutch solenoid valve | "DESCRIPTION " | ||
| Low brake solenoid valve | "DESCRIPTION " | ||
| Anti-interlock solenoid valve | "DESCRIPTION " | ||
| 2346 brake solenoid valve | "DESCRIPTION " | ||
| Line pressure solenoid valve | "DESCRIPTION " | ||
| Torque converter clutch solenoid valve | "DESCRIPTION " | ||
| Accelerator pedal position sensor | "DESCRIPTION " | ||
| Manual mode switch | "DESCRIPTION " | ||
| Paddle shifter(1) | |||
| Starter relay | "DESCRIPTION " | ||
| A/T CHECK indicator lamp | When the ignition switch is pushed to the ON position, the light comes on for 2 seconds. | ||
| Stop lamp switch | "DESCRIPTION " | ||
| ECM | "SYSTEM DESCRIPTION " | ||
| BCM | "SYSTEM DESCRIPTION " | ||
| Unified meter and A/C amp. | "METER SYSTEM: SYSTEM DESCRIPTION " | ||
| ABS actuator and electric unit (control unit) | "SYSTEM DESCRIPTION " | ||
| Yaw rate/side G sensor | "DESCRIPTION " | ||
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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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