LIGHTING (INT)  LIGHTING SYSTEM  Luggage Compartment Door Courtesy Switch Circuit  


DESCRIPTION

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

WIRING DIAGRAM

E283458E01
5.51,3.833 7.156,4.188 1.646,0.354 10 false Main Body ECU (Multiplex Network Body ECU) 5.521,3.667 5.833,3.865 0.313,0.198 10 false MB 5.698,2.406 6.01,2.604 0.313,0.198 10 false 20 5.781,1.052 6.094,1.25 0.313,0.198 10 false 4 4.823,1.135 5.135,1.333 0.313,0.198 10 false 3E 4.823,2.51 5.135,2.708 0.313,0.198 10 false 3E 4.823,2.323 5.135,2.521 0.313,0.198 10 false 34 4.813,0.938 5.125,1.135 0.313,0.198 10 false 39 3.104,2.438 3.417,2.635 0.313,0.198 10 false 3 4.219,3.177 5.833,3.573 1.615,0.396 10 false Instrument Panel Junction Block Assembly 1.917,1.052 2.229,1.25 0.313,0.198 10 false DL 2.833,1.052 3.146,1.25 0.313,0.198 10 false DB 2.844,2.427 3.156,2.625 0.313,0.198 10 false D+ 1.917,2.417 2.229,2.615 0.313,0.198 10 false E 3.115,1.042 3.427,1.24 0.313,0.198 10 false 1 1.76,1.031 2.073,1.229 0.313,0.198 10 false 2 1.135,1.625 3.906,1.844 2.771,0.219 10 false No. 1 Luggage Compartment Light Assembly 1.323,3.021 4.031,3.271 2.708,0.25 10 false Luggage Compartment Door Lock Assembly 1.146,1.458 1.604,1.656 0.458,0.198 10 false L23 1.333,2.865 1.792,3.063 0.458,0.198 10 false L29 1.76,2.417 2.073,2.615 0.313,0.198 10 false 2 5.969,2.5 6.583,2.698 0.615,0.198 10 false LGCY 5.979,1.146 6.594,1.344 0.615,0.198 10 false BCTL

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 ON or OFF ON: Luggage compartment door open
OFF: Luggage compartment door closed 		-
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>PROBLEM SYMPTOMS TABLE


NG

2.CHECK HARNESS AND CONNECTOR (BATTERY POWER SOURCE)
2.CHECK HARNESS AND CONNECTOR (BATTERY POWER SOURCE)
a.

Disconnect the L23 No. 1 luggage compartment light assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
L23-1 (DB) - Body ground Battery saving function not operating 11 to 14 V



Result:
Proceed to
OK
NG



OK

3.INSPECT NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY

NG

8.CHECK HARNESS AND CONNECTOR (NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
3.INSPECT NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY
a.

Remove the No. 1 luggage compartment light assembly.

Click hereVehicle Interior>LIGHTING (INT)>LUGGAGE COMPARTMENT ROOM LIGHT>REMOVAL


b.

Inspect the No. 1 luggage compartment light assembly.

Click hereVehicle Interior>LIGHTING (INT)>LUGGAGE COMPARTMENT ROOM LIGHT>INSPECTION


Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)

NG

REPLACE NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY

Click hereVehicle Interior>LIGHTING (INT)>LUGGAGE COMPARTMENT ROOM LIGHT>REMOVAL


4.CHECK HARNESS AND CONNECTOR (NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the L29 luggage compartment door lock assembly connector.


b.

Disconnect the 3E instrument panel junction block assembly connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
L23-2 (DL) - 3E-34 Always Below 1 Ω
L23-2 (DL) or 3E-34 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY AND BODY GROUND)
a.

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

Standard Resistance:
Tester Connection Condition Specified Condition
L29-3 (D+) - L23-2 (DL) Always Below 1 Ω
L29-3 (D+) or L23-2 (DL) - Body ground Always 10 kΩ or higher
L29-2 (E) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

6.INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY
a.

Remove the luggage compartment door lock assembly.

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


b.

Inspect the luggage compartment door courtesy switch built into the luggage compartment door lock assembly.

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


Result:
Proceed to
OK
NG



OK

7.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

NG

REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY

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


7.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
a.

Remove the instrument panel junction block assembly.

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


b.

Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

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


c.

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

E258622C08
1.156,0.302 1.51,0.552 0.354,0.25 4.531,0.385 4.885,0.635 0.354,0.25 4.896,1.396 5.229,1.042 false 1.229,0.333 1.542,0.531 0.313,0.198 10 false 3E 4.594,0.417 4.906,0.615 0.313,0.198 10 false MB 0.219,0.167 0.531,0.365 0.313,0.198 10 false *a 4.719,1.438 5.333,1.635 0.615,0.198 10 false LGCY
*a Component without harness connected
(Instrument Panel Junction Block Assembly) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
3E-34 - MB-20 (LGCY) 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 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

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


8.CHECK HARNESS AND CONNECTOR (NO. 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 3E instrument panel junction block assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
L23-1 (DB) - 3E-39 Always Below 1 Ω
L23-1 (DB) or 3E-39 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

9.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
a.

Remove the instrument panel junction block assembly.

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


b.

Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

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


c.

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

E258622C17
1.156,0.302 1.51,0.552 0.354,0.25 4.531,0.385 4.885,0.635 0.354,0.25 3.677,1.448 3.375,1.042 false 1.229,0.333 1.542,0.531 0.313,0.198 10 false 3E 4.594,0.417 4.906,0.615 0.313,0.198 10 false MB 0.219,0.167 0.531,0.365 0.313,0.198 10 false *a 3.823,1.448 4.438,1.646 0.615,0.198 10 false BCTL
*a Component without harness connected
(Instrument Panel Junction Block Assembly) 		- -


Standard Resistance:
Tester Connection Condition Specified Condition
3E-39 - MB-4 (BCTL) 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 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

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