Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch: Procedure

1. Check for DTCs.
2. Connect Techstream to the DLC3.
3. By following the tester screen display, check whether any DTCs are output.
   RESULT
   
   

   Display	Proceed to
   No output	A
   DTC output	B

B → PROCEED TO INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC 

A: Go to next step 

1. Use the Data List to check the function of the power window master switch.
   D-DOOR MOTOR
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door P/W Auto SW	Driver side power window AUTO switch signal / ON or OFF	ON: Driver side power window AUTO switch operates OFF: Driver side power window AUTO switch does not operate	-
   D Door P/W Up SW	Driver side power window UP switch signal / ON or OFF	ON: Driver side power window UP switch operates OFF: Driver side power window UP switch does not operate	-
   D Door P/W Down SW	Driver side power window DOWN switch signal / ON or OFF	ON: Driver side power window DOWN switch operates OFF: Driver side power window DOWN switch does not operate	-

   OK

   ON (switch operates) appears on screen.

OK → REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side) 

NG: Go to next step 

1. Remove the power window regulator master switch assembly
   Fig 1: Identifying Power Window Regulator Master Switch (Driver Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the master switch

   Standard resistance 

   Tester Connection	Switch Condition	Specified Condition
   8 (U) - 1 (E) - 4 (A)	Auto UP	Below 1 Ω
   4 (A) - 5 (D) - 1 (E)	Auto Down	Below 1 Ω

NG → REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 

OK: Go to next step 

1. Remove the D FR DOOR fuse from the instrument panel junction block.

   Standard resistance

   Below 1 Ω

NG → REPLACE FUSE (D FR DOOR) 

OK: Go to next step 

1. Disconnect the H2 switch connector.
   Fig 2: Identifying G1 Switch Connector - H4 Motor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the H4 motor connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   Tester Connection	Specified Condition
   H2-4 (A) - H4-4 (AUTO)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK → REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side)