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

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


DESCRIPTION

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

WIRING DIAGRAM

E369882E12
1.646,0.792 2.302,1.125 0.656,0.333 10 false 2 1.854,0.792 2.51,1.125 0.656,0.333 10 false ACT- 2.688,0.792 3.344,1.125 0.656,0.333 10 false D+ 2.969,0.792 3.625,1.125 0.656,0.333 10 false 3 0.854,1.188 1.51,1.521 0.656,0.333 10 false O108 0.865,1.333 3.99,1.781 3.125,0.448 10 false Luggage Compartment Door Courtesy Light Switch (Luggage Compartment Door Lock Assembly) 4.292,0.781 4.948,1.115 0.656,0.333 10 false 34 4.365,1.479 5.99,1.917 1.625,0.438 10 false Driver Side Junction Block Assembly 5.885,0.781 6.542,1.115 0.656,0.333 10 false 4 6.073,0.896 6.729,1.229 0.656,0.333 10 false BCTY 5.365,2.146 7.021,2.75 1.656,0.604 10 false Main Body ECU (Multiplex Network Body ECU) 4.365,1.344 4.677,1.542 0.313,0.198 10 false 4A 5.365,1.99 5.677,2.188 0.313,0.198 10 false MB

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
Luggage Courtesy SW Luggage compartment door courtesy switch signal OFF or ON OFF: Luggage compartment door closed
ON: Luggage compartment door open 		-
Body Electrical > Main Body > Data List
Tester Display
Luggage Courtesy SW
50003 123 53
OK:

Normal conditions listed above are displayed.



Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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


NG

2.INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
2.INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
a.

Remove the luggage compartment door courtesy light switch (luggage compartment door lock assembly).

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


b.

Inspect the luggage compartment door courtesy light switch (luggage compartment door lock assembly).

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


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR COURTESY LIGHT SWITCH - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)

NG

REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

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


3.CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR COURTESY LIGHT SWITCH - DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND BODY GROUND)
a.

Disconnect the 4A driver side junction block assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O108-3 (D+) - 4A-34 Always Below 1 Ω
O108-3 (D+) or 4A-34 - Body ground Always 10 kΩ or higher
O108-2 (ACT-) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

4.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E173023C57
1.208,0.271 1.583,0.5 0.375,0.229 4.635,0.271 5.01,0.5 0.375,0.229 3.385,1.042 3.25,1.458 false 0.26,0.104 0.5,0.302 0.24,0.198 10 false *a 3.073,1.51 3.51,1.688 0.438,0.177 10 false BCTY 1.313,0.313 1.646,0.479 0.333,0.167 10 false 4A 4.74,0.313 5.073,0.479 0.333,0.167 10 false MB
*a Component without harness connected
(Driver Side Junction Block Assembly) 		- -


a.

Remove the main body ECU (multiplex network body ECU) from the driver side junction block 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
4A-34 - MB-4 (BCTY) 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 DRIVER SIDE JUNCTION BLOCK ASSEMBLY

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