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.
Driver Side Power Window does not Operate with Power Window Master Switch [12/2022 - ]: Procedure
- READ VALUE USING GTS
- Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Communication D-Door Motor Connection status between power window regulator motor assembly LH (for driver door) and main body ECU (multiplex network body ECU) STOP or OK STOP: Communication stopped
OK: Normal communication- Communication Master Switch Connection status between multiplex network master switch assembly and main body ECU (multiplex network body ECU) STOP or OK STOP: Communication stopped
OK: Normal communication- Body Electrical > Main Body > Data List
Tester Display Communication D-Door Motor Communication Master Switch OK
OK is displayed for each Data List item above.
Result
Proceed to OK NG
Result:
NG
GO TO LIN COMMUNICATION SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2022 - 03/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2023 - ]
Result:
OK
See step 2
- Read the Data List according to the display on the GTS.
- READ VALUE USING GTS
- Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note D Door Power Window UP Switch Driver door power window manual up switch OFF or ON OFF: Manual up switch not being operated
ON: Manual up switch being operated- D Door Power Window DOWN Switch Driver door power window manual down switch OFF or ON OFF: Manual down switch not being operated
ON: Manual down switch being operated- Body Electrical > Main Body > Data List
Tester Display D Door Power Window UP Switch D Door Power Window DOWN Switch OK
On the GTS screen, ON or OFF is displayed accordingly.
Result
Proceed to OK NG
Result:
NG
See step 4
Result:
OK
See step 3
- Read the Data List according to the display on the GTS.
- PERFORM ACTIVE TEST USING GTS
- Perform the Active Test according to the display on the GTS.
Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note D Door Power Window UP Driver door power window up activate OFF/ON - D Door Power Window DOWN Driver door power window down activate OFF/ON - Body Electrical > Main Body > Active Test
Tester Display D Door Power Window UP Body Electrical > Main Body > Active Test
Tester Display D Door Power Window DOWN HINT:
Up and down movement does not occur if the arrow is not pressed and held.
OK
Driver door power window operates normally.
Result
Proceed to OK NG
Result:
OK
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Door)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
- Perform the Active Test according to the display on the GTS.
- CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
- Disconnect the O5 power window regulator motor assembly LH (for driver door) connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition O5-10 (UP) - Body ground Ignition switch ON 11 to 14 V O5-7 (DOWN) - Body ground Ignition switch ON 11 to 14 V Result
Proceed to OK NG
Result:
NG
See step 6
Result:
OK
See step 5
- INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Door)
Refer to INSPECTION [12/2022 - ]
Result
Proceed to OK NG Result:
OK
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
Result:
NG
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Door)
Refer to REMOVAL [12/2022 - 03/2023] , or refer to REMOVAL [03/2023 - ]
- CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Door))
- Disconnect the O8 multiplex network master switch assembly connector.
- Disconnect the O5 power window regulator motor assembly LH (for driver door) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition O8-6 (UP) - O5-10 (UP) Always Below 1 Ω O8-2 (DOWN) - O5-7 (DOWN) Always Below 1 Ω O8-6 (UP) or O5-10 (UP) - Body ground Always 10 kΩ or higher O8-2 (DOWN) or O5-7 (DOWN) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
Refer to REMOVAL [12/2022 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
NO RELATED
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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.