Driver Side Power Window does not Operate with Power Window Master Switch [12/2017 - 10/2023]: Procedure

1. Read the Data List according to the display on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [12/2017 - 10/2023]

   Body Electrical > D-Door Motor > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   D Door P/W Up SW	Driver door power window manual up switch signal	OFF or ON	OFF: Driver door power window manual up switch not being operated ON: Driver door power window manual up switch being operated	-
   D Door P/W Down SW	Driver door power window manual down switch signal	OFF or ON	OFF: Driver door power window manual down switch not being operated ON: Driver door power window manual down switch being operated	-

   Body Electrical > D-Door Motor > Data List 

   Tester Display
   D Door P/W Up SW
   D Door P/W Down SW

   OK

   On the Techstream screen, ON or OFF is displayed accordingly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020]  , or refer to  REMOVAL [10/2020 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023] 

Result: 

NG 

See step  2

1. Disconnect the H21 front power window regulator motor assembly LH connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Front Power Window Regulator Motor Assembly LH)

2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H21-10 (UP) - H21-1 (GND)	Engine switch on (IG) Multiplex network master switch assembly (driver side switch) OFF → UP (manual operation)	11 to 14 V → Below 1 V
   H21-7 (DOWN) - H21-1 (GND)	Engine switch on (IG) Multiplex network master switch assembly (driver side switch) OFF → DOWN (manual operation)	11 to 14 V → Below 1 V

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL [12/2017 - 09/2018]  , or refer to  REMOVAL [09/2018 - 10/2020]  , or refer to  REMOVAL [10/2020 - 10/2022]  , or refer to  REMOVAL [10/2022 - 10/2023] 

Result: 

NG 

See step  3

1. Disconnect the I5 multiplex network master switch assembly connector.
2. Disconnect the H21 fornt power window regulator motor assembly LH connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   I5-20 (UP) - H21-10 (UP)	Always	Below 1 Ω
   I5-15 (DOWN) - H21-7 (DOWN)	Always	Below 1 Ω
   I5-20 (UP) or H21-10 (UP) - Body ground	Always	10 kΩ or higher
   I5-15 (DOWN) or H21-7 (DOWN) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY. Refer to  REMOVAL [12/2017 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR