Inspection Procedure

1. Check for DTCs.
2. Connect the intelligent tester (with CAN / VIM) 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: GO TO  DIAGNOSTIC TROUBLE CODE CHART  

A: Go TO NEXT STEP. 

1. Perform the ACTIVE TEST, using the intelligent tester to generate a control command, and then check the power window operation.

   Power window regulator motor (Power window ECU) 

   POWER WINDOW REGULATOR MOTOR - TEST DETAILS
   
   

   Item	Test Details	Diagnostic Note
   POWER WINDOW	OFF / UP / DOWN (OFF)	-

   OK: Driver side power window operates normally. 

   CAUTION: Be careful to avoid injuries as this causes vehicle parts to move.

NG: Go to step   6 

OK: Go TO NEXT STEP. 

1. Check the DATA LIST for proper functioning 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. Disconnect the H2 switch connector.
2. Turn the ignition switch ON.
3. Measure the voltage of the wire harness side connector.
   Fig 1: Identifying H2 Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   H2-6 (B) - H2-1 (E)	10 to 14 V

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go TO NEXT STEP. 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   H2-8 (U) - H4-10 (UP)	Below 1 Ω
   H2-5 (D) - H4-7 (DOWN)	Below 1 Ω
   H2-4 (A) - H4-4 (AUTO)	Below 1 Ω
   H2-3 (LED) - H4-5 (LED)	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY 

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 H4 motor connector.
2. Measure the voltage of the wire harness side connector.
   Fig 3: Identifying H4 Motor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   H4-2 (B) - H4-1 (GND)	10 to 14 V

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

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