Remote Up / Down Function does not Operate: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Master Switch / Data List.
5. Read the Data List according to the display on the Techstream.
   MASTER SWITCH (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY)
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   P Door P/W Auto SW	Front passenger side power window auto up/down switch signal / ON or OFF	ON: Front passenger door power window auto switch operated OFF: Front passenger door power window auto switch not operated	-
   RL Door P/W Auto SW	Rear LH side power window auto up/down switch signal / ON or OFF	ON: Rear LH power window auto switch operated OFF: Rear LH power window auto switch not operated	-
   RR Door P/W Auto SW	Rear RH side power window auto up/down switch signal / ON or OFF	ON: Rear RH power window auto switch operated OFF: Rear RH power window auto switch not operated	-
   P Door P/W Up SW	Front passenger side power window manual up switch signal / ON or OFF	ON: Front passenger door power window manual up switch operated OFF: Front passenger door power window manual up switch not operated	-
   RL Door P/W Up SW	Rear LH side power window manual up switch signal / ON or OFF	ON: Rear LH power window manual up switch operated OFF: Rear LH power window manual up switch not operated	-
   RR Door P/W Up SW	Rear RH side power window manual up switch signal / ON or OFF	ON: Rear RH power window manual up switch operated OFF: Rear RH power window manual up switch not operated	-
   P Door P/W Down SW	Front passenger side power window manual down switch signal / ON or OFF	ON: Front passenger door power window manual down switch operated OFF: Front passenger door power window manual down switch not operated	-
   RL Door P/W Down SW	Rear LH side power window manual down switch signal / ON or OFF	ON: Rear LH power window manual down switch operated OFF: Rear LH power window manual down switch not operated	-
   RR Door P/W Down SW	Rear RH side power window manual down switch signal / ON or OFF	ON: Rear RH power window manual down switch operated OFF: Rear RH power window manual down switch not operated	-
   Window Lock Switch Status	Window lock switch signal / ON or OFF	ON: Window lock switch LOCK position OFF: Window lock switch UNLOCK position	-

   OK

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

NG → See step   3 

OK: Go to next step 

1. Disconnect the multiplex network master switch assembly connector.
2. Disconnect the power window regulator motor assembly (for front passenger side, rear LH side and rear RH side) connectors.
   Fig 1: Identifying Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   FOR FRONT PASSENGER SIDE
   
   

   Tester Connection	Condition	Specified Condition
   M18-10 (LIN1) - L15-9 (LIN)	Always	Below 1 Ω

   FOR REAR LH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   M18-10 (LIN1) - O10-9 (LIN)	Always	Below 1 Ω

   FOR REAR RH SIDE
   
   

   Tester Connection	Condition	Specified Condition
   M18-10 (LIN1) - N10-9 (LIN)	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the multiplex network master switch assembly. Refer to REMOVAL .

NEXT: Go to next step 

1. Check that the remote up/down function using the multiplex network master switch assembly operates the power windows. Refer to OPERATION CHECK .

   OK

   Remote up/down function is normal.

   Result

   Result	Proceed to
   OK	A
   NG (Front passenger side power window remote up / down function does not operate)	B
   NG (Rear LH side power window remote up / down function does not operate)	C
   NG (Rear RH side power window remote up / down function does not operate)	D

B → See step   5 

C → See step   6 

D → See step   7 

A → END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY IS DEFECTIVE)