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.
2017 Infiniti QX50 AWDFACTORY OEM SERVICE PROCEDURE
Component Location
| 1. | IPDM E/R Refer to COMPONENT LOCATION . |
2. | ECM Refer to COMPONENT LOCATION . |
3. | BCM Refer to COMPONENT LOCATION . |
| 4. | Accelerator pedal position sensor Refer to COMPONENT LOCATION . |
5. | Stop lamp switch Refer to COMPONENT LOCATION . |
6. | ABS actuator and electric unit (control unit) Refer to COMPONENT LOCATION . |
| 7. | A/T CHECK indicator lamp (On the combination meter) |
8. | Shift position indicator (On the combination meter) |
9. | Yaw rate/side G sensor Refer to COMPONENT LOCATION . |
| 10. | Unified meter and A/C amp. Refer to COMPONENT LOCATION . |
11. | Joint connector | 12. | Output speed sensor*1 |
| 13. | Control valve & TCM*2 | 14. | Manual mode position select switch (shift-up) | 15. | Manual mode select switch |
| 16. | Manual mode position select switch (shift-down) | 17. | Shift position switch | 18. | Selector lever position indicator |
| A. | A/T assembly | B. | A/T shift selector assembly | C. | Center console |
| *1: Output speed sensor is installed in A/T assembly. | |||||
| *2: Control valve & TCM is installed in A/T assembly. | |||||
NOTE:
The following components are included in control valve & TCM.
- TCM
- Input speed sensor 1, 2
- A/T fluid temperature sensor
- Transmission range switch
- Direct clutch solenoid valve
- High and low reverse clutch solenoid valve
- Input clutch solenoid valve
- Front brake solenoid valve
- Low brake solenoid valve
- Anti-interlock solenoid valve
- 2346 brake solenoid valve
- Line pressure solenoid valve
- Torque converter clutch solenoid valve
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.