Inspection Procedure

CHECK HAND-HELD TESTER

Monitor code

Using the hand-held tester, inspect the monitor code of the door ECU.

HINT:

The monitor code shows the switch condition when a DTC is output.

When a monitor code is indicated while the switch is not operated, the switch is detected in being stuck. When a monitor code is not indicated while the switch is operated, it is detected that the switch contact condition is bad.

HAND-HELD TESTER AND DTC CODE

DTC Code	Item	Monitor Item
B1221/21	Driver's side switch 1 (operating)	Any switch of the power window regulator master switch is ON

NG: Go to step 3
OK: GO TO NEXT STEP.

CHECK MULTIPLEX NETWORK BODY ECU
1. Inspect the output of the body ECU.
  1. Inspect the voltage between terminal 7 (GND1) and each terminal of the door which body ECU is inoperative.
    
    Fig 1: Checking Multiplex Network Body Ecu
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Standard:
    
    Fig 2: Identifying Terminals Voltage Table (Standard)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    HINT:
    - When an output to the passenger 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 door and both rear doors are abnormal, proceed to NG.
1. OK-B: Go to step 4
2. NG: REPLACE MULTIPLEX NETWORK BODY ECU
3. OK-A: GO TO NEXT STEP.
CHECK POWER WINDOW REGULATOR SWITCH ASSY (PASSENGER SIDE)
1. Check the continuity.
  1. Check the continuity between each terminal of the connectors.
    
    Fig 3: Checking Power Window Regulator Switch Assy (Passenger Side)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Standard:
    
    Fig 4: Identifying Terminals Continuity Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: REPAIR OR REPLACE HARNESS AND CONNECTOR
2. NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSY
CHECK POWER WINDOW REGULATOR SWITCH ASSY REAR (REAR RH AND LH)
1. Check the continuity.
  1. Check the continuity between each terminal of the connectors.
    
    Fig 5: Checking Power Window Regulator Switch Assy Rear (Rear Rh And Lh)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Standard:
    
    Fig 6: Identifying Terminals Continuity Table
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: REPAIR OR REPLACE HARNESS AND CONNECTOR
2. NG: REPLACE POWER WINDOW REGULATOR SWITCH ASSY REAR