RM3660EC _58 Vehicle Interior _080785 LIGHTING (INT) _0600096 LIGHTING SYSTEM(for NR Series Engine) J

LIGHTING (INT)  LIGHTING SYSTEM(for NR Series Engine)  Front Door Courtesy Switch Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of the front door courtesy light switch assembly.

WIRING DIAGRAM

E369883E09
1.125,2.542 1.438,2.74 0.313,0.198 10 false O32 1.167,1.094 1.479,1.292 0.313,0.198 10 false O30 3.219,0.656 3.375,0.854 0.156,0.198 10 false 1 3.229,2.104 3.385,2.302 0.156,0.198 10 false 1 5.646,0.646 5.958,0.844 0.313,0.198 10 false 1 5.719,2.104 5.875,2.302 0.156,0.198 10 false 6 5.938,0.646 6.552,0.844 0.615,0.198 10 false FLCY 5.938,2.104 6.552,2.302 0.615,0.198 10 false FRCY 6.469,0.385 6.781,0.583 0.313,0.198 10 false +B 6.469,1.833 6.781,2.031 0.313,0.198 10 false +B 5.302,2.74 5.76,2.938 0.458,0.198 10 false I85 1.167,1.25 4.99,1.448 3.823,0.198 10 false Front Door Courtesy Light Switch Assembly LH 1.125,2.698 4.948,2.896 3.823,0.198 10 false Front Door Courtesy Light Switch Assembly RH 5.302,2.885 6.948,3.51 1.646,0.625 10 false Main Body ECU (Multiplex Network Body ECU)

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.*

*: w/ Smart Entry and Start System



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 Courtesy SW Front door courtesy light switch assembly RH signal OFF or ON OFF: Front door RH closed
ON: Front door RH open 		-
FL Door Courtesy SW Front door courtesy light switch assembly LH signal OFF or ON OFF: Front door LH closed
ON: Front door LH open 		-
Body Electrical > Main Body > Data List
Tester Display
FR Door Courtesy SW
FL Door Courtesy SW
50003 123 197,199
OK:

Normal conditions listed above are displayed.



Result:
Result Proceed to
OK A
NG ("FL Door Courtesy SW" is not normal) B
NG ("FR Door Courtesy SW" is not normal) C



A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM (for NR Series Engine)>PROBLEM SYMPTOMS TABLE


B

2.INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSEMBLY

C

4.INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSEMBLY
2.INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSEMBLY
a.

Remove the front door courtesy light switch assembly LH.

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>REMOVAL


b.

Inspect the front door courtesy light switch assembly LH.

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSEMBLY

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the I85 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
O30-1 - I85-1 (FLCY) Always Below 1 Ω
O30-1 or I85-1 (FLCY) - 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

4.INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSEMBLY
a.

Remove the front door courtesy light switch assembly RH.

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>REMOVAL


b.

Inspect the front door courtesy light switch assembly RH.

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSEMBLY

Click hereVehicle Interior>LIGHTING (INT)>FRONT DOOR COURTESY SWITCH>REMOVAL


5.CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the I85 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
O32-1 - I85-6 (FRCY) Always Below 1 Ω
O32-1 or I85-6 (FRCY) - 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