Inspection Procedure

1. Data list (for MANUAL UP/DOWN switch)
   1. Using the hand-held tester, check that DTC B1221 is output when the switch is operated.

HINT:

Using DTC "B1221" which is a code when any of the master switch is constantly turned on, the MANUAL UP/DOWN switch operation can be monitored. If there is an output of DTC "B1221" when the switch is operated, the switch circuit can be considered normal.

Standard [Driver side J/B (body ECU) (Switch condition)]: 

Fig 1: Measurement Item Normal Condition Table

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step   3 

OK: Go To Next Step. 

1. Active test
   1. Select the active test, and then check that the power window operates.

   HINT:

   During the active test, the hand-held tester sends signal to the power window regulator master switch (driver's door ECU) to drive the power window motor. If the power window operates, the power window motor itself and the wire harness between the power window motor and power window regulator master switch (driver's door ECU) is considered normal.

   Standard [Power window regulator master switch (driver's door ECU)]: 

   ITEM AND TEST DETAILS
   
   

   Item	Test details
   P/W UP/DOWN	Power window UP or DOWN

2. Data list (for AUTO UP/DOWN switch)
   1. Perform a data list of the power window regulator master switch (driver's door ECU).

HINT:

Data list displays on the hand-held tester the switch condition judged by the power window regulator master switch (driver's door ECU). If the display changes according to the actual switch operation, the switch itself and the wire harness between the switch and power window regulator master switch (driver's door ECU) is considered normal.

Standard [Power window regulator master switch (driver's door ECU)]: 

Fig 2: Measurement Item Normal Condition Table

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Judgement: 

A: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

B: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

C: GO TO FLOWCHART IN  POWER WINDOW REGULATOR MOTOR ASSY LH CIRCUIT (DRIVER'S DOOR)  

D 

1. Replace the power window regulator master switch assy.
2. Check the power window operation.

OK: END 

NG: GO TO FLOWCHART IN  POWER WINDOW REGULATOR MOTOR ASSY LH CIRCUIT (DRIVER'S DOOR)