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.
2011 Toyota Highlander Base, 2.7 AFACTORY OEM SERVICE PROCEDURE
Diagnostic Trouble Code Chart
POWER WINDOW CONTROL SYSTEM
| DTC Code | Detection Item | Trouble Area | See |
|---|---|---|---|
| B2311 | Driver Door Motor Malfunction | 1. Battery disconnection when the ignition switch is on (IG) 2. Power window regulator motor (on driver side) 3. Incorrect installation of power window components 4. Overheated power window regulator motor (on driver side) |
Refer to DTC B2311: Driver Door Motor Malfunction |
| B2312 | Driver Side Door Master Switch Malfunction | 1. Power window regulator motor (on driver side) 2. Power window master switch 3. Wire harness 4. Power window master switch is held in the same position for more than 20 seconds |
Refer to DTC B2312: Driver Side Door Master Switch Malfunction |
| B2313 | Glass Position Initialization Incomplete | 1. Power window regulator motor (on driver side) 2. Power window regulator motor (on driver side) not initialized |
Refer to DTC B2313: Glass Position Initialization Incomplete |
| B2321 | Driver Side Door ECU Communication Stop | 1. Power window regulator motor (on driver side) 2. Main body ECU (Instrument panel junction block) 3. Wire harness |
Refer to DTC B2321: Driver Side Door ECU Communication Stop |
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.