Inspection Procedure

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

   Result 

   RESULT REFERENCE
   
   

   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.

   Power window regulator motor (Power window ECU) 

   POWER WINDOW REGULATOR MOTOR - DATA LIST
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D 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 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 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. Use the Data List to check the function of the power window master switch.

   Power window regulator master switch assembly 

   POWER WINDOW REGULATOR MASTER SWITCH - DATA LIST
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   D 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	-

   OK: ON (switch operates) appears on screen. 

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 G1 switch connector.
2. Disconnect the H2 motor connector.
3. Measure the resistance of the wire harness side connectors.
   Fig 1: Identifying G1 Switch Connector And H4 Motor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   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)