Inspection Procedure

Check Hand-Held Tester
1. Monitor code
  1. Using hand-held tester, inspect the monitor code of the driver's door ECU.
  NOTE:
  - Monitor code shows the switch condition when a DTC is output.
  - When a code is indicated while the switch is not operated, the switch is detected being stuck. When a code is not indicated when the switch is operated, it is detected that the switch contact condition is bad.
    
    Fig 1: Reviewing Driver's Side Switch SAE Information
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: Go To Step 3 , (Check Power Window Regulator Switch Assembly).
2. OK: Go To Step 2 , (Check Multiplex Network Body ECU).
Check Multiplex Network Body ECU
1. Inspect output of the body ECU.
  1. Inspect the voltage between terminal 2 (GND) and each terminal of the door which body ECU is inoperative.
  Fig 2: Identifying Multiplex Network Body ECU
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 3: Reviewing Multiplex Body ECU Connection Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  NOTE:
  - When an output to passenger's door is normal, proceed to "OK-A".
  - When outputs to both rear doors are normal, proceed to "OK-B".
  - When an output to either of the passenger's door and both rear doors are not normal, proceed to "NG".
1. OK-B : Go To Step 4 , (Check Power Window Regulator Switch Assembly Rear).
2. NG: Replace Multiplex Network Body ECU
3. OK-A : Go To Step 3 , (Check Power Window Regulator Switch Assembly).
Check Power Window Regulator Switch Assembly
1. Check continuity
  1. Check the continuity between each terminal of the connectors.
  Fig 4: Checking Power Window Regulator Switch For Continuity (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 5: Reviewing Power Window Switch Operation Information (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Repair Or Replace Harness And Connector
2. NG: Replace Power Window Regulator Switch Assembly
Check Power Window Regulator Switch Assembly Rear
1. Check continuity
  1. Check the continuity between each terminal of the connectors.
  Fig 6: Checking Power Window Regulator Switch For Continuity (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Standard:
  
  Fig 7: Reviewing Power Window Switch Operation Information (1 Of 2)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Repair Or Replace Harness And Connector
2. NG: Replace Power Window Regulator Switch Assembly Rear