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.
Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH [12/2019 - ]: Procedure
- READ VALUE USING GTS (RL-DOOR MOTOR)
- Read the Data List according to the display on the GTS.
Body Electrical > RL-Door Motor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note RL Door P/W Auto SW Rear LH door power window auto switch signal OFF or ON OFF: Rear LH door power window auto up or auto down switch not being operated
ON: Rear LH door power window auto up or auto down switch being operated- Body Electrical > RL-Door Motor > Data List
Tester Display RL Door P/W Auto SW 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 2
- Read the Data List according to the display on the GTS.
- PERFORM INITIALIZATION (for Rear LH Door)
- Initialize the power window regulator motor assembly (for rear LH door).
Refer to INITIALIZATION [12/2019 - ]
Result
Proceed to NEXT
Result:
NEXT
See step 3
- Initialize the power window regulator motor assembly (for rear LH door).
- CHECK POWER WINDOW CONTROL SYSTEM (AUTO UP / DOWN FUNCTION)
- Check that the rear LH door power window moves when the auto up and down functions of the rear power window regulator switch assembly (for LH door) are operated.
Refer to OPERATION CHECK [12/2019 - ]
OK
Rear LH door auto up and down functions are normal.
Result
Proceed to OK NG
Result:
OK
END (PROBLEM DUE TO INITIALIZATION FAILURE)
Result:
NG
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door). Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]
- Check that the rear LH door power window moves when the auto up and down functions of the rear power window regulator switch assembly (for LH door) are operated.
- INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door)
Refer to INSPECTION [12/2019 - ]
Result
Proceed to OK NG Result:
NG
REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door). Refer to REMOVAL [12/2019 - ]
Result:
OK
See step 5
- CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for LH Door) - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door))
- Disconnect the K9 power window regulator motor assembly (for rear LH door) connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition K7-8 (AUTO) - K9-4 (AUTO) Always Below 1 Ω K7-8 (AUTO) or K9-4 (AUTO) - Body ground Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door). Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]
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.