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.
How To Proceed With Troubleshooting
HINT:
- Use these procedures to troubleshoot the power window control system.
- *: Use the Techstream.
- VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
- INSPECT BATTERY VOLTAGE
Standard voltage
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT: Go to next step
- CHECK FOR DTC (ELECTRIC POWER CONTROL SYSTEM)*
- Using the Techstream, check if the electric power control system is functioning normally.RESULT:
Result Proceed to DTC B22B3 is not output A DTC B22B3 is output B B → GO TO ELECTRIC POWER CONTROL SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE TABLE
A: Go to next step
- Using the Techstream, check if the electric power control system is functioning normally.
- CHECK FOR DTC*
- Check for DTCs and note any codes that are output.
- Delete the DTC.
- Recheck for DTCs. Based on the DTCs output in the first step, try to force output of the same DTC by simulating the symptoms indicated by the DTC.RESULT:
Result Proceed to No DTCs output A DTC B2311 is output B DTC B2312 is output B DTC B2313 is output B CAN communication system DTC is output C LIN communication system DTC is output D B → GO TO DIAGNOSTIC TROUBLE CODE TABLE. Refer to DIAGNOSTIC TROUBLE CODE TABLE
C → GO TO CAN COMMUNICATION SYSTEM. Refer to PRECAUTION
D → GO TO LIN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING
A: Go to next step
- PROBLEM SYMPTOMS TABLE RESULT:
Result Proceed to Fault not listed in problem symptoms table A Fault listed in problem symptoms table B B → GO TO STEP 7
A: Go to next step
- OVERALL ANALYSIS AND TROUBLESHOOTING*
- Refer to OPERATION CHECK .
- Refer to TERMINALS OF ECU .
- Refer to DATA LIST/ACTIVE TEST .
NEXT: Go to next step
- REPAIR OR REPLACE RESULT:
Result Proceed to Door window regulator and power window regulator motor assembly is replaced or removed/installed. A Door window regulator and power window regulator motor assembly is not replaced or removed/installed. B B → GO TO STEP 9
A: Go to next step
- RESET POWER WINDOW MOTOR
- If the power window master switch AUTO light is blinking, reset the power window motor. Refer to INITIALIZATION .
NEXT: Go to next step
- If the power window master switch AUTO light is blinking, reset the power window motor. Refer to INITIALIZATION .
- CONFIRMATION TEST
NEXT → END
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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