Driver Side Power Window does not Operate with Power Window Master Switch [08/2019 - ]: Procedure

1. Check if DTC B2312 is output (Refer to DTC B2312: Power Window Switch Malfunction [08/2015 - ] ).

   OK

   DTC B2312 is not output.

Result: 

NG 

GO TO DTC B2312 

(Refer to DTC B2312: Power Window Switch Malfunction [08/2015 - ] )

Result: 

OK 

See step  2

1. Use the Data List to check if the multiplex network master switch is functioning properly (Refer to DATA LIST / ACTIVE TEST [08/2015 - ] ).
   D-DOOR MOTOR
   
   

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

   OK

   On tester screen, each item changes between ON and OFF according to above chart.

Result: 

NG 

See step  4

Result: 

OK 

See step  3

1. Select the Active Test, use the Techstream to generate a control command, and then check that power window regulator motor operates (Refer to DATA LIST / ACTIVE TEST [08/2015 - ] ).
   D-DOOR MOTOR
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Power Window	Driver side power window	OFF/UP/DOWN	-

   OK

   The power window regulator motor operates normally.

Result: 

OK 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

(Refer to DATA LIST / ACTIVE TEST [08/2015 - ] )

Result: 

NG 

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )

1. Disconnect the K3 multiplex network master switch connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K3-11 (B) - Body ground	Always	11 to 14 V

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K3-12 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Multiplex Network Master Switch Assembly)

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  5

1. Disconnect the K6 power window regulator motor connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   K6-2 (B) - Body ground	Always	11 to 14 V

3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K6-1 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

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

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  6

1. Disconnect the K3 multiplex network master switch connector.
2. Disconnect the K6 power window regulator motor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   K3-20 (UP) - K6-10 (UP)	Always	Below 1 Ω
   K3-15 (DOWN) - K6-7 (DOWN)	Always	Below 1 Ω
   K3-20 (UP) - Body ground	Always	10 kΩ or higher
   K3-15 (DOWN) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Remove the front power window regulator motor assembly LH.

   Refer to REMOVAL [08/2015 - ]

2. Inspect the front power window regulator motor assembly LH.

   Refer to INSPECTION [08/2015 - ]

Result: 

OK 

REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 

(Refer to REMOVAL [08/2015 - ] )

Result: 

NG 

REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH 

(Refer to REMOVAL [08/2015 - ] )