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.
2019 Infiniti QX30 Essential, AWDFACTORY OEM SERVICE PROCEDURE
Power Window Control System DTCS
DTC INDEX
| DTC | Description |
|---|---|
| B18B5 | POWER WINDOW MAIN SWITCH |
| B18B6 | POWER WINDOW MAIN SWITCH |
| B18B7 | POWER WINDOW MAIN SWITCH (REAR LH SWITCH) |
| B18B8 | POWER WINDOW MAIN SWITCH (REAR RH SWITCH) |
| B18B9 | POWER WINDOW MAIN SWITCH (POWER WINDOW LOCK SWITCH) |
| B18C1 | FRONT POWER WINDOW MOTOR HALL SENSOR |
| B18C9 | FRONT POWER WINDOW MOTOR HALL SENSOR POWER SUPPLY |
| B18E6 | FRONT POWER WINDOW SWITCH (PASSENGER SIDE) |
| B1A7B | POWER WINDOW OPERATION |
| B18B7 | REAR POWER WINDOW SWITCH LH |
| B18B8 | REAR POWER WINDOW SWITCH RH |
| B18C9 | REAR POWER WINDOW MOTOR HALL SENSOR POWER SUPPLY |
| B2517 | REAR POWER WINDOW MOTOR LH HALL SENSOR |
| B2519 | REAR POWER WINDOW MOTOR RH HALL SENSOR |
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.