RM3660EC _58 Vehicle Interior _080785 LIGHTING (INT) _0600097 LIGHTING SYSTEM(except NR Series Engine) J

LIGHTING (INT)  LIGHTING SYSTEM(except NR Series Engine)  Rear Door Courtesy Switch Circuit  


DESCRIPTION

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

WIRING DIAGRAM

E500335E08
2.917,0.594 3.073,0.792 0.156,0.198 10 false 1 2.917,1.708 3.073,1.906 0.156,0.198 10 false 1 5.854,0.583 6.146,0.792 0.292,0.208 10 false 6 4.198,0.49 4.51,0.688 0.313,0.198 10 false 18 4.208,1.625 4.521,1.823 0.313,0.198 10 false 27 4.156,0.698 4.521,0.885 0.365,0.188 10 false 10G 4.156,1.823 4.5,2.021 0.344,0.198 10 false 10G 5.844,1.698 6.031,1.875 0.188,0.177 10 false 1 5.354,2.896 5.667,3.094 0.313,0.198 10 false MB 6.063,0.583 6.677,0.781 0.615,0.198 10 false LCTY 6.063,1.698 6.677,1.896 0.615,0.198 10 false RCTY 0.969,2.01 1.281,2.208 0.313,0.198 10 false O34 1.021,1.021 4.542,1.219 3.521,0.198 10 false Rear Door Courtesy Light Switch Assembly LH 1.01,0.865 1.323,1.063 0.313,0.198 10 false O31 4.51,2.198 5.917,2.708 1.406,0.51 10 false Power Distribution Box Assembly 5.354,3.063 7,3.625 1.646,0.563 10 false Main Body ECU (Multiplex Network Body ECU) 0.969,2.167 4.49,2.365 3.521,0.198 10 false Rear Door Courtesy Light Switch Assembly RH

CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.READ VALUE USING GTS
a.

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
RR Door Courtesy Switch Status Rear door courtesy light switch assembly RH signal Close or Open Close: Rear door RH closed
Open: Rear door RH open 		-
RL Door Courtesy Switch Status Rear door courtesy light switch assembly LH signal Close or Open Close: Rear door LH closed
Open: Rear door LH open 		-
Body Electrical > Main Body > Data List
Tester Display
RR Door Courtesy Switch Status
RL Door Courtesy Switch Status
50003 449 32,33
OK:

Normal conditions listed above are displayed.



Result:
Result Proceed to
OK A
NG ("RL Door Courtesy Switch Status" is not normal) B
NG ("RR Door Courtesy Switch Status" is not normal) C



A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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


B

2.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

C

5.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH
2.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH
a.

Inspect the rear door courtesy light switch assembly LH.

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


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH

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


3.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 10G power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O31-1 - 10G-18 Always Below 1 Ω
O31-1 or 10G-18 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

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


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
10G-18 - MB-6 (LCTY) 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

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


5.INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH
a.

Inspect the rear door courtesy light switch assembly RH.

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


Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH

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


6.CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 10G power distribution box assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O34-1 - 10G-27 Always Below 1 Ω
O34-1 or 10G-27 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

7.INSPECT POWER DISTRIBUTION BOX ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.INSPECT POWER DISTRIBUTION BOX ASSEMBLY
a.

Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.

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


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
10G-27 - MB-1 (RCTY) 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

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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