2017 Infiniti QX30 BaseFACTORY OEM SERVICE PROCEDURE

Power Window Control System DTCS

POWER WINDOW CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Description
DTC B18B5 POWER WINDOW MAIN SWITCH
DTC B18B6 POWER WINDOW MAIN SWITCH
DTC B18B7 POWER WINDOW MAIN SWITCH (REAR LH SWITCH)
DTC B18B8 POWER WINDOW MAIN SWITCH (REAR RH SWITCH)
DTC B18B9 POWER WINDOW MAIN SWITCH (POWER WINDOW LOCK SWITCH)
DTC B18C1 FRONT POWER WINDOW MOTOR HALL SENSOR
DTC B18C9 FRONT POWER WINDOW MOTOR HALL SENSOR POWER SUPPLY
DTC B18E6 FRONT POWER WINDOW SWITCH (PASSENGER SIDE)
DTC B1A7B POWER WINDOW OPERATION
DTC B18B7 REAR POWER WINDOW SWITCH LH
DTC B18B8 REAR POWER WINDOW SWITCH RH
DTC B18C9 REAR POWER WINDOW MOTOR HALL SENSOR POWER SUPPLY
DTC B2517 REAR POWER WINDOW MOTOR LH HALL SENSOR
DTC 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.

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