LIGHTING (INT)  LIGHTING SYSTEM  Door Unlock Detection Switch Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of front door unlock detection switch RH.

WIRING DIAGRAM

E296291E01
5.49,0.927 7.125,1.313 1.635,0.385 10 false Main Body ECU (Multiplex Network Body ECU) 1.646,0.938 5.771,1.135 4.125,0.198 10 false Front Door Lock Assembly RH 1.635,0.76 1.948,0.958 0.313,0.198 10 false G7 5.646,0.427 6.021,0.615 0.375,0.188 10 false E31 6.021,0.417 6.542,0.604 0.521,0.188 10 false LSFR 2.792,0.323 3.313,0.51 0.521,0.188 10 false LSSR 1.885,0.313 2.042,0.51 0.156,0.198 10 false E 3.24,0.302 3.396,0.5 0.156,0.198 10 false 7 1.719,0.292 1.875,0.49 0.156,0.198 10 false 8 5.677,0.219 5.875,0.417 0.198,0.198 10 false 18

PROCEDURE

1.READ VALUE USING GTS
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
FR Door Lock Pos Front door RH unlock detection switch signal LOCK or UNLOCK LOCK: Front door RH locked
UNLOCK: Front door RH unlocked 		-
Body Electrical > Main Body > Data List
Tester Display
FR Door Lock Pos
50003 123 196

Result:
Result
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


NG

2.INSPECT FRONT DOOR LOCK ASSEMBLY RH
2.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

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

NG

REPLACE FRONT DOOR LOCK ASSEMBLY RH

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


3.CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)
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
G7-7 (LSSR) - E31-18 (LSFR) Always Below 1 Ω
G7-7 (LSSR) or E31-18 (LSFR) - Body ground Always 10 kΩ or higher
G7-8 (E) - Body ground Always Below 1 Ω



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