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.
2018 Lexus LX 570FACTORY OEM SERVICE PROCEDURE
Power Window Control System
POWER WINDOW CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Detection Item | Trouble Area | Proceed to |
|---|---|---|---|
| B2311 | Power Window Motor Malfunction | - Power window regulator motor - Battery disconnection when engine switch on (IG) - Incorrect installation of power window components - Overheated power window regulator motor |
Refer to DTC B2311: Power Window Motor Malfunction [09/2015 - ] |
| B2312 | Power Window Switch Malfunction | - Multiplex network master switch - Power window regulator switch - Power window regulator motor - Harness or connector - Multiplex network master switch held in same position for more than 20 seconds. - Power window regulator switch held in same position for more than 20 seconds. |
Refer to DTC B2312: Power Window Switch Malfunction [09/2015 - ] |
| B2313 | Glass Position Initialization Incomplete | - Power window regulator motor - Power window regulator motor not initialized |
Refer to DTC B2313: Glass Position Initialization Incomplete [09/2015 - ] |
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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