Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - WINDOW / GLASS

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CLEAR DTC

CHECK FOR DTC

INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

READ VALUE USING INTELLIGENT TESTER (DRIVER SIDE POWER WINDOW REGULATOR MOTOR)

CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR AND BODY GROUND)

DTC B2312 Power Window Switch Malfunction

DESCRIPTION

The power window regulator motor consists of the motor, regulator and ECU. The power window regulator motor is driven by operating the power window switch.


This DTC is stored when the ECU built into the regulator motor determines that the power window switch is stuck.


  • HINT:
  • This DTC may be stored for all the windows.
  • NOTICE:
When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized.
After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the auto up function is used. In such cases, the auto up function can be resumed by repeating the following operation at least 5 times:
Close the power window by fully pulling up the power window switch and holding it in the auto up position.
Open the power window by fully pushing down the power window switch.
DTC CodeDTC Detection ConditionTrouble Area
B2312
The multiplex network master switch assembly is stuck.
The multiplex network master switch assembly is held in the same position for more than 20 sec.
Multiplex network master switch assembly
Power window regulator motor assembly LH (for LHD)
Power window regulator motor assembly RH (for RHD)
Harness or connector
Multiplex network master switch assembly held in same position for more than 20 sec.

WIRING DIAGRAM

Dtc B2312 Power Window Switch Malfunction. WINDOW / GLASS. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

1.CLEAR DTC

Clear the DTCs ().

NEXT
2.CHECK FOR DTC

Check for DTCs ().

Result
ResultProceed to
B2312 is output.A
LIN communication DTCs are output.B
No DTCs output.C
B
GO TO LIN COMMUNICATION SYSTEM ()
C
END (DUE TO KEEPING SWITCH OPERATED FOR 20 SEC. OR MORE)
A
3.INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

Remove the multiplex network master switch assembly ().

for LHD:

Dtc B2312 Power Window Switch Malfunction. WINDOW / GLASS. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Text in Illustration
*1Driver Switch*2Front Passenger Switch
*3Rear RH Side Switch*4Rear LH Side Switch
*5Window Lock Switch*6Illumination

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • Driver Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    8 (U) - 1 (E) - 4 (AUTO)
    5 (D) - 6 (B)    		Always (ON/OFF)UP AUTOBelow 1 Ω
    8 (U) - 1(E)
    5 (D) - 6 (B)    		Always (ON/OFF)UP MANUALBelow 1 Ω
    8 (U) - 5 (D) - 6 (B)Always (ON/OFF)OFFBelow 1 Ω
    5 (D) - 1 (E)
    8 (U) - 6 (B)    		Always (ON/OFF)DOWN MANUALBelow 1 Ω
    4 (AUTO) - 5(D) - 1 (E)
    8 (U) - 6 (B)    		Always (ON/OFF)DOWN AUTOBelow 1 Ω
  • Passenger Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    6 (B) - 16 (U)
    1 (E) - 15 (D)    		OFFUPBelow 1 Ω
    1 (E) - 16 (U)
    1 (E) - 15 (D)    		OFFOFFBelow 1 Ω
    1 (E) - 16 (U)
    6 (B) - 15 (D)    		OFFDOWNBelow 1 Ω
    6 (B) - 16 (U)ONUPBelow 1 Ω
    16 (U) - 15 (D)ONOFFBelow 1 Ω
    6 (B) - 15 (D)ONDOWNBelow 1 Ω
  • Rear RH Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    6 (B) - 10 (U)
    1 (E) - 18 (D)    		OFFUPBelow 1 Ω
    1 (E) - 18 (D)
    1 (E) - 10 (U)    		OFFOFFBelow 1 Ω
    6 (B) - 18 (D)
    1 (E) - 10 (U)    		OFFDOWNBelow 1 Ω
    6 (B) - 10 (U)ONUPBelow 1 Ω
    18 (D) - 10 (U)ONOFFBelow 1 Ω
    6 (B) - 18 (D)ONDOWNBelow 1 Ω
  • Rear LH Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    6 (B) - 12 (U)
    1 (E) - 13 (D)    		OFFUPBelow 1 Ω
    1 (E) - 13 (D)
    1 (E) - 12 (U)    		OFFOFFBelow 1 Ω
    6 (B) - 13 (D)
    1 (E) - 12 (U)    		OFFDOWNBelow 1 Ω
    6 (B) - 12 (U)ONUPBelow 1 Ω
    13 (D) - 12 (U)ONOFFBelow 1 Ω
    6 (B) - 13 (D)ONDOWNBelow 1 Ω

If the result is not as specified, replace the power window regulator master switch assembly.


Apply battery voltage to the power window regulator master switch and check that the illumination comes on.

  • OK:
  • Measurement ConditionSpecified Condition
    Battery positive (+) → Terminal 3 (LED+)
    Battery negative (-) → Terminal 1 (E)    		Illumination comes on

If the result is not as specified, replace the power window regulator master switch assembly.


for RHD:

Dtc B2312 Power Window Switch Malfunction. WINDOW / GLASS. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Text in Illustration
*1Driver Switch*2Front Passenger Switch
*3Rear RH Side Switch*4Rear LH Side Switch
*5Window Lock Switch*6Illumination

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • Driver Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    1 (U) - 9 (E) - 4 (AUTO)
    5 (D) - 6 (B)    		Always (ON/OFF)UP AUTOBelow 1 Ω
    1 (U) - 9 (E)
    5 (D) - 6 (B)    		Always (ON/OFF)UP MANUALBelow 1 Ω
    1 (U) - 5 (D) - 6 (B)Always (ON/OFF)OFFBelow 1 Ω
    5 (D) - 9 (E)
    1 (U) - 6 (B)    		Always (ON/OFF)DOWN MANUALBelow 1 Ω
    4 (AUTO) - 5 (D) - 9 (E)
    1 (U) - 6 (B)    		Always (ON/OFF)DOWN AUTOBelow 1 Ω
  • Passenger Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    6 (B) - 12 (U)
    9 (E) - 13 (D)    		OFFUPBelow 1 Ω
    9 (E) - 12 (U)
    9 (E) - 13 (D)    		OFFOFFBelow 1 Ω
    9 (E) - 12 (U)
    6 (B) - 13 (D)    		OFFDOWNBelow 1 Ω
    6 (B) - 12 (U)ONUPBelow 1 Ω
    12 (U) - 13 (D)ONOFFBelow 1 Ω
    6 (B) - 13 (D)ONDOWNBelow 1 Ω
  • Rear RH Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    6 (B) - 16 (U)
    9 (E) - 15 (D)    		OFFUPBelow 1 Ω
    9 (E) - 15 (D)
    9 (E) - 16 (U)    		OFFOFFBelow 1 Ω
    6 (B) - 15 (D)
    9 (E) - 16 (U)    		OFFDOWNBelow 1 Ω
    6 (B) - 16 (U)ONUPBelow 1 Ω
    15 (D) - 16 (U)ONOFFBelow 1 Ω
    6 (B) - 15 (D)ONDOWNBelow 1 Ω
  • Rear LH Side Switch
    Tester ConnectionWindow Lock Switch ConditionPower Window Switch ConditionSpecified Condition
    6 (B) - 18 (U)
    9 (E) - 10 (D)    		OFFUPBelow 1 Ω
    9 (E) - 10 (D)
    9 (E) - 18 (U)    		OFFOFFBelow 1 Ω
    6 (B) - 10 (D)
    9 (E) - 18 (U)    		OFFDOWNBelow 1 Ω
    6 (B) - 18 (U)ONUPBelow 1 Ω
    10 (D) - 18 (U)ONOFFBelow 1 Ω
    6 (B) - 10 (D)ONDOWNBelow 1 Ω

If the result is not as specified, replace the power window regulator master switch assembly.


Apply battery voltage to the power window regulator master switch and check that the illumination comes on.

  • OK:
  • Measurement ConditionSpecified Condition
    Battery positive (+) → Terminal 3 (LED+)
    Battery negative (-) → Terminal 9 (E)    		Illumination comes on

If the result is not as specified, replace the power window regulator master switch assembly.


NG
REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY ()
OK
4.READ VALUE USING INTELLIGENT TESTER (DRIVER SIDE POWER WINDOW REGULATOR MOTOR)

Use the Data List to check if the power window regulator motor is functioning properly ().

D-Door Motor
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnostic Note
D Door P/W Auto SWDriver side power window auto up/down signal / ON or OFFON: Driver side power window auto up/down switch operated
OFF: Driver side power window switch not operated		-
D Door P/W Up SWDriver side power window manual up signal / ON or OFFON: Driver side power window manual up switch operated
OFF: Driver side power window switch not operated		-
D Door P/W Down SWDriver side power window manual down signal / ON or OFFON: Driver side power window manual down switch operated
OFF: Driver side power window switch not operated		-
Result
ResultProceed to
The display does not change according to operation of the multiplex network master switch.A
The display changes according to operation of the multiplex network master switch (for LHD).B
The display changes according to operation of the multiplex network master switch (for RHD).C
B
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH ()
C
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH ()
A
5.CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH - FRONT POWER WINDOW REGULATOR MOTOR AND BODY GROUND)
*1: for LHD
*2: for RHD

Disconnect I31*1 or I26*2 multiplex network master switch assembly connector.

Disconnect I12*1 or I4*2 power window regulator motor assembly connector.

Measure the resistance according to the value(s) in the table below.

  • Standard Resistance:
  • for LHD
    Tester ConnectionConditionSpecified Condition
    I31-8 (U) - I12-10 (UP)AlwaysBelow 1 Ω
    I31-5 (D) - I12-7 (DOWN)AlwaysBelow 1 Ω
    I31-4 (AUTO) - I12-4 (AUTO)AlwaysBelow 1 Ω
    I31-1 (E) - Body groundAlwaysBelow 1 Ω
    I31-8 (U) or I12-10 (UP) - Body groundAlways10 kΩ or higher
    I31-5 (D) or I12-7 (DOWN) - Body groundAlways10 kΩ or higher
    I31-4 (AUTO) or I12-4 (AUTO) - Body groundAlways10 kΩ or higher
  • for RHD
    Tester ConnectionConditionSpecified Condition
    I26-1 (U) - I4-10 (UP)AlwaysBelow 1 Ω
    I26-5 (D) - I4-7 (DOWN)AlwaysBelow 1 Ω
    I26-4 (AUTO) - I4-4 (AUTO)AlwaysBelow 1 Ω
    I26-9 (E) - Body groundAlwaysBelow 1 Ω
    I26-1 (U) or I4-10 (UP) - Body groundAlways10 kΩ or higher
    I26-5 (D) or I4-7 (DOWN) - Body groundAlways10 kΩ or higher
    I26-4 (AUTO) or I4-4 (AUTO) - Body groundAlways10 kΩ or higher
Result
ResultProceed to
OK (for LHD)A
OK (for RHD)B
NGC
B
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH ()
C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A
REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH ()
WINDOW / GLASS
Land Cruiser URJ200 URJ202 GRJ200 VDJ200
POWER WINDOW CONTROL SYSTEM for Models with Jam Protection Function on Driver Door Window Only