DOOR LOCK  POWER DOOR LOCK CONTROL SYSTEM  All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder  


DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the power window regulator master switch assembly and driver door key cylinder lock or unlock switch signals from the front door lock assembly RH. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

B298281E33
5.313,4.938 5.854,5.208 0.542,0.271 10 false E31 5.313,5.094 6.958,5.583 1.646,0.49 10 false Main Body ECU (Multiplex Network Body ECU) 0.771,2.146 3.542,2.594 2.771,0.448 10 false Front Door Lock Assembly RH 0.781,4.438 2.802,4.917 2.021,0.479 10 false Power Window Regulator Master Switch Assembly 1.24,1.344 1.615,1.625 0.375,0.281 10 false 8 2.229,1.615 2.708,1.969 0.479,0.354 10 false 6 2.219,1.052 2.76,1.354 0.542,0.302 10 false 5 1.25,3.583 1.531,3.906 0.281,0.323 10 false 9 5.49,1.625 5.927,1.99 0.438,0.365 10 false 11 5.49,1.052 5.875,1.344 0.385,0.292 10 false 12 5.573,3.844 5.896,4.156 0.323,0.313 10 false 9 5.51,3.302 5.854,3.583 0.344,0.281 10 false 10 1.958,3.302 2.323,3.604 0.365,0.302 10 false UL 2.031,3.865 2.385,4.167 0.354,0.302 10 false L 1.438,3.583 1.875,3.875 0.438,0.292 10 false E 1.948,1.063 2.292,1.302 0.344,0.24 10 false UL 2.021,1.625 2.448,1.958 0.427,0.333 10 false L 1.438,1.344 1.833,1.656 0.396,0.313 10 false E 5.76,1.708 6.281,2.094 0.521,0.385 10 false L2 5.74,1.156 6.26,1.5 0.521,0.344 10 false UL2 5.771,3.958 6.281,4.313 0.51,0.354 10 false L1 5.75,3.396 6.219,3.688 0.469,0.292 10 false UL1 0.781,4.271 1.313,4.542 0.531,0.271 10 false G11 0.76,1.979 1.271,2.271 0.51,0.292 10 false G7 2.229,3.271 2.635,3.646 0.406,0.375 10 false 8 2.229,3.833 2.719,4.208 0.49,0.375 10 false 2

PROCEDURE

1.CHECK DOOR LOCK OPERATION
a.

Check door lock operation.

Click hereVehicle Interior>DOOR LOCK>POWER DOOR LOCK CONTROL SYSTEM>OPERATION CHECK


Result:
Result Proceed to
All doors cannot be locked by power window regulator master switch assembly A
All doors cannot be locked by driver door key cylinder B



A

2.READ VALUE USING GTS (Door Lock SW-Lock, Door Lock SW-Unlock)

B

5.READ VALUE USING GTS (Door Key SW-Lock, Door Key SW-Unlock)
2.READ VALUE USING GTS (Door Lock SW-Lock, Door Lock SW-Unlock)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Main Body / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Door Lock SW-Lock Door control switch lock signal OFF or ON OFF: Lock side of door control switch not pushed
ON: Lock side of door control switch pushed 		-
Door Lock SW-Unlock Door control switch unlock signal OFF or ON OFF: Unlock side of door control switch not pushed
ON: Unlock side of door control switch pushed 		-
Body Electrical > Main Body > Data List
Tester Display
Door Lock SW-Lock
Door Lock SW-Unlock
50003 123 17,18

OK:

The GTS indicates ON or OFF according to the switch operations shown in the table.


Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

3.INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
3.INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
a.

Remove the power window regulator master switch assembly.

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL SWITCH>REMOVAL


b.

Inspect the power window regulator master switch assembly.

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY

Click hereVehicle Interior>DOOR LOCK>DOOR CONTROL SWITCH>REMOVAL


4.CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the E31 main body ECU (multiplex network body ECU) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G11-2 (L) - E31-9 (L1) Always Below 1 Ω
G11-8 (UL) - E31-10 (UL1) Always Below 1 Ω
G11-9 (E) - Body ground Always Below 1 Ω
G11-2 (L) - Body ground Always 10 kΩ or higher
G11-8 (UL) - Body ground Always 10 kΩ or higher
E31-9 (L1) - Body ground Always 10 kΩ or higher
E31-10 (UL1) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.READ VALUE USING GTS (Door Key SW-Lock, Door Key SW-Unlock)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Main Body / Data List.


e.

Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Door Key SW-Lock Driver door key-linked lock/unlock switch lock signal OFF or ON OFF: Driver door key cylinder not turned to lock position
ON: Driver door key cylinder turned to lock position 		-
Door Key SW-Unlock Driver door key-linked lock/unlock switch unlock signal OFF or ON OFF: Driver door key cylinder not turned to unlock position
ON: Driver door key cylinder turned to unlock position 		-
Body Electrical > Main Body > Data List
Tester Display
Door Key SW-Lock
Door Key SW-Unlock
50003 123 19,20

Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

6.INSPECT FRONT DOOR LOCK ASSEMBLY RH
6.INSPECT FRONT DOOR LOCK ASSEMBLY RH
a.

Remove the front door lock assembly RH.

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>REMOVAL


b.

Inspect the front door lock assembly RH.

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>INSPECTION


Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPLACE FRONT DOOR LOCK ASSEMBLY RH

Click hereVehicle Interior>DOOR LOCK>FRONT DOOR LOCK>REMOVAL


7.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the E31 main body ECU (multiplex network body ECU) connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
G7-6 (L) - E31-11 (L2) Always Below 1 Ω
G7-5 (UL) - E31-12 (UL2) Always Below 1 Ω
G7-8 (E) - Body ground Always Below 1 Ω
G7-6 (L) - Body ground Always 10 kΩ or higher
G7-5 (UL) - Body ground Always 10 kΩ or higher
E31-11 (L2) - Body ground Always 10 kΩ or higher
E31-12 (UL2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR