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

LIGHTING (INT)  LIGHTING SYSTEM(for NR Series Engine)  Interior Light Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the operation of the following lights:

·

Map Light Assembly

·

Rear Room Light (No. 1 Room Light Assembly)*1

·

Room Light Assembly*2

*1: w/ Room Light (for Slide Switch Type)

*2: w/ Room Light (for Push Switch Type)



WIRING DIAGRAM

for Bulb Type
E414779E06
1.25,0.25 2.167,0.448 0.917,0.198 10 false from Battery 1.594,0.896 2.51,1.094 0.917,0.198 10 false J/B-AM 2.719,0.76 3.031,0.958 0.313,0.198 10 false 4D 2.75,0.563 2.906,0.76 0.156,0.198 10 false 1 2.719,1.719 3.031,1.917 0.313,0.198 10 false 4F 2.698,1.521 3.01,1.719 0.313,0.198 10 false 10 2.719,2.115 3.031,2.313 0.313,0.198 10 false 4F 2.708,1.917 3.021,2.115 0.313,0.198 10 false 29 3.25,0.896 3.865,1.094 0.615,0.198 10 false DOME 4.281,1.385 5.51,1.583 1.229,0.198 10 false DOME CUT 5.76,0.656 6.073,0.854 0.313,0.198 10 false 23 5.813,1.99 5.969,2.188 0.156,0.198 10 false 1 6.021,1.99 6.479,2.188 0.458,0.198 10 false ILE 6.01,0.656 6.625,0.854 0.615,0.198 10 false DOMR 3.396,2.521 6.417,2.781 3.021,0.26 10 false Driver Side Junction Block Assembly 4.667,3.385 5.281,3.583 0.615,0.198 10 false DOOR 4.802,4.26 5.26,4.458 0.458,0.198 10 false GND 5.208,4.26 5.521,4.458 0.313,0.198 10 false 11 5.229,3.385 5.385,3.583 0.156,0.198 10 false 1 3.479,3.635 4.844,3.938 1.365,0.302 10 false Door Linked Switch 3.49,4.094 4.74,4.323 1.25,0.229 10 false Dome Light Switch 4.656,4.875 5.271,5.073 0.615,0.198 10 false RLMP 4.667,5.094 4.823,5.292 0.156,0.198 10 false 2 2.917,4.688 3.375,4.885 0.458,0.198 10 false OFF 2.906,3.375 3.365,3.573 0.458,0.198 10 false OFF 2.906,3.979 3.219,4.177 0.313,0.198 10 false ON 2.906,4.292 3.219,4.49 0.313,0.198 10 false ON 1.667,3.99 2.896,4.188 1.229,0.198 10 false Map Light LH 1.646,4.781 2.875,4.979 1.229,0.198 10 false Map Light RH 1.385,3.667 1.844,3.865 0.458,0.198 10 false +B1 1.146,3.667 1.458,3.865 0.313,0.198 10 false 10 1.365,5.083 1.677,5.281 0.313,0.198 10 false T6 1.354,5.229 3.042,5.531 1.688,0.302 10 false Map Light Assembly 2.469,5.74 3.083,5.938 0.615,0.198 10 false DOOR 3.021,5.74 3.479,5.938 0.458,0.198 10 false CTY 3.396,6.063 3.552,6.26 0.156,0.198 10 false 2 3.396,5.74 3.552,5.938 0.156,0.198 10 false 3 3.177,6.063 3.333,6.26 0.156,0.198 10 false E 2.469,6.063 2.781,6.26 0.313,0.198 10 false ON 1.031,5.885 1.188,6.083 0.156,0.198 10 false B 0.833,5.885 0.99,6.083 0.156,0.198 10 false 1 0.896,6.563 1.208,6.76 0.313,0.198 10 false T7 0.885,6.74 4.042,7.135 3.156,0.396 10 false Rear Room Light (No. 1 Room Light Assembly)*1 5.26,6.031 5.573,6.229 0.313,0.198 10 false MB 5.271,6.188 6.927,6.635 1.656,0.448 10 false Main Body ECU (Multiplex Network Body ECU) 1.031,7.417 1.188,7.615 0.156,0.198 10 false B 3.719,7.25 4.177,7.448 0.458,0.198 10 false CTY 3.875,8.406 4.031,8.604 0.156,0.198 10 false E 4.104,7.25 4.26,7.448 0.156,0.198 10 false 2 4.104,8.417 4.26,8.615 0.156,0.198 10 false 3 0.823,7.406 0.979,7.604 0.156,0.198 10 false 4 2.896,7.25 3.354,7.448 0.458,0.198 10 false OFF 2.896,8.719 3.354,8.917 0.458,0.198 10 false OFF 2.875,7.563 3.188,7.76 0.313,0.198 10 false ON 2.885,8.396 3.198,8.594 0.313,0.198 10 false ON 1.104,9.521 4.208,9.76 3.104,0.24 10 false Room Light Assembly*2 2.458,7.823 3.208,8.188 0.75,0.365 10 false Room Light Switch LH 1.115,9.375 1.427,9.573 0.313,0.198 10 false T8 2.354,8.979 3.771,9.229 1.417,0.25 10 false Room Light Switch RH 4.469,7.635 7.135,7.885 2.667,0.25 10 false *1: w/ Room Light (for Slide Switch Type) 4.469,8.052 7.135,8.302 2.667,0.25 10 false *2: w/ Room Light (for Push Switch Type) 1.302,8.906 2.719,9.156 1.417,0.25 10 false Room Light RH 1.292,7.74 2.708,7.99 1.417,0.25 10 false Room Light LH 0.354,5.885 0.625,6.104 0.271,0.219 10 false *1 0.354,7.406 0.677,7.667 0.323,0.26 10 false *2 4.313,5.74 4.583,5.958 0.271,0.219 10 false *1 4.323,7.25 4.646,7.51 0.323,0.26 10 false *2

for LED Type
E490002E01
1.26,0.24 3.094,0.438 1.833,0.198 10 false from Battery 1.594,0.906 2.51,1.104 0.917,0.198 10 false J/B-AM 2.698,0.75 3.01,0.948 0.313,0.198 10 false 4D 2.74,0.542 2.896,0.74 0.156,0.198 10 false 1 3.188,0.938 3.802,1.135 0.615,0.198 10 false DOME 4.208,1.396 5.021,1.677 0.813,0.281 10 false DOME CUT 6.021,0.594 6.635,0.792 0.615,0.198 10 false DOMR 5.698,0.594 6.01,0.792 0.313,0.198 10 false 23 5.719,1.99 5.875,2.188 0.156,0.198 10 false 1 6.021,1.938 6.479,2.135 0.458,0.198 10 false ILE 2.698,1.708 3.01,1.906 0.313,0.198 10 false 4F 2.708,1.49 3.021,1.688 0.313,0.198 10 false 10 2.698,2.104 3.01,2.302 0.313,0.198 10 false 4F 2.708,1.917 3.021,2.115 0.313,0.198 10 false 29 5.469,6.104 5.781,6.302 0.313,0.198 10 false MB 5.469,6.302 7.115,6.698 1.646,0.396 10 false Main Body ECU (Multiplex Network Body ECU) 1.396,5.146 1.708,5.344 0.313,0.198 10 false T6 1.406,5.323 4.156,5.521 2.75,0.198 10 false Map Light Assembly 1.156,3.625 1.313,3.823 0.156,0.198 10 false 6 1.396,3.646 1.854,3.844 0.458,0.198 10 false +B1 4.646,3.365 5.26,3.563 0.615,0.198 10 false DOOR 5.198,3.365 5.354,3.563 0.156,0.198 10 false 4 5.167,4.271 5.479,4.469 0.313,0.198 10 false 14 4.781,4.271 5.24,4.469 0.458,0.198 10 false GND 4.677,4.865 5.292,5.063 0.615,0.198 10 false RLMP 4.667,5.115 4.823,5.313 0.156,0.198 10 false 3 3.469,4.094 4.906,4.313 1.438,0.219 10 false Dome Light Switch 3.458,3.635 6.208,3.833 2.75,0.198 10 false Door Linked Switch 2.875,3.354 3.333,3.552 0.458,0.198 10 false OFF 2.875,4.677 3.333,4.875 0.458,0.198 10 false OFF 2.854,3.958 3.167,4.156 0.313,0.198 10 false ON 2.854,4.281 3.167,4.479 0.313,0.198 10 false ON 1.625,4 3.458,4.198 1.833,0.198 10 false Map Light LH 1.615,4.771 3.448,4.969 1.833,0.198 10 false Map Light RH 1.302,6.688 3.292,6.885 1.99,0.198 10 false Room Light LH 1.26,7.823 3.25,8.021 1.99,0.198 10 false Room Light RH 2.438,6.771 3.156,7.229 0.719,0.458 10 false Room Light Switch LH 2.323,7.927 3.74,8.281 1.417,0.354 10 false Room Light Switch RH 2.906,7.646 3.365,7.844 0.458,0.198 10 false OFF 2.917,6.188 3.375,6.385 0.458,0.198 10 false OFF 2.927,6.51 3.24,6.708 0.313,0.198 10 false ON 2.927,7.344 3.24,7.542 0.313,0.198 10 false ON 1,8.354 1.458,8.552 0.458,0.198 10 false T16 0.99,8.521 3.896,8.719 2.906,0.198 10 false Room Light Assembly 0.771,6.344 0.927,6.542 0.156,0.198 10 false 5 1.042,6.344 1.198,6.542 0.156,0.198 10 false B 3.708,6.188 4.167,6.385 0.458,0.198 10 false CTY 4.115,6.188 4.271,6.385 0.156,0.198 10 false 2 3.844,7.344 4,7.542 0.156,0.198 10 false E 4.104,7.344 4.26,7.542 0.156,0.198 10 false 1 3.25,2.573 5.604,2.885 2.354,0.313 10 false Driver Side Junction Block Assembly

CAUTION / NOTICE / HINT

NOTICE:
·

Inspect the fuses for circuits related to this system before performing the following procedure.

·

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

*: w/ Smart Entry and Start System




HINT:

The DOME CUT relay supplies power to the interior lights. If all the lights that use power from the DOME CUT relay do not turn on, check the interior light auto cut circuit first.

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM (for NR Series Engine)>Interior Light Auto Cut Circuit


PROCEDURE

1.PERFORM ACTIVE TEST 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 / Active Test.


e.

Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Illuminated Entry System Turns on the lights that are controlled by the illuminated entry system*1 OFF or ON Perform the Active Test with the map light assembly door linked switch on, room light switch LH and room light switch RH of the room light assembly on*2, and the rear room light (No. 1 room light assembly) switch set to DOOR*3.

*1: Refer to System Description for the lights that are controlled by the illuminated entry system.

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM (for NR Series Engine)>SYSTEM DESCRIPTION

*2: w/ Room Light (for Push Switch Type)

*3: w/ Room Light (for Slide Switch Type)


Body Electrical > Main Body > Active Test
Tester Display
Illuminated Entry System
50004 123 4
OK:

All lights that are controlled by the illuminated entry system come on.



Result:
Result Proceed to
OK A
NG (Map light does not come on) B
NG (Rear room light does not come on) C
NG (Map light and rear room light does not come on) D



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 MAP LAMP ASSEMBLY

C

6.CONFIRM MODEL

D

14.INSPECT MAP LAMP ASSEMBLY
3.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
for Bulb Type A
for LED Type B



A

4.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

B

5.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
4.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4F 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
T6-10 (+B1) - 4F-10 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4F 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
T6-6 (+B1) - 4F-10 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
w/ Room Light (for Slide Switch Type) A
w/ Room Light (for Push Switch Type) B



A

7.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAP LIGHT ASSEMBLY)

B

8.INSPECT ROOM LIGHT ASSEMBLY
7.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAP LIGHT ASSEMBLY)
a.

Disconnect the T6 map light assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
T6-10 (+B1) -T6-2 (RLMP) Rear room light (No. 1 room light assembly) switch set to DOOR Below 1 Ω



Result:
Proceed to
OK
NG



OK

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (INCLUDING BULB HOLDER OF THE NO. 1 ROOM LIGHT ASSEMBLY THAT ARE PART OF THE WIRE HARNESS)

8.INSPECT ROOM LIGHT ASSEMBLY
a.

Remove the room light assembly.

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


b.

Inspect the room light assembly.

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


Result:
Proceed to
OK
NG



OK

9.CONFIRM MODEL

NG

REPLACE ROOM LIGHT ASSEMBLY

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


9.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
for Bulb Type A
for LED Type B



A

10.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - ROOM LIGHT ASSEMBLY)

B

12.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - ROOM LIGHT ASSEMBLY)
10.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - ROOM LIGHT ASSEMBLY)
a.

Disconnect the T6 map light assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
T6-10 (+B1) - T8-4 (B) Always Below 1 Ω
T6-2 (RLMP) - T8-2 (CTY) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

11.INSPECT MAP LIGHT ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - ROOM LIGHT ASSEMBLY)
a.

Disconnect the T6 map light assembly connector.


b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
T6-6 (+B1) - T16-5 (B) Always Below 1 Ω
T6-3 (RLMP) - T16-2 (CTY) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

13.INSPECT MAP LIGHT ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

15.CONFIRM MODEL
a.

Choose the model to be inspected.


Result:
Result Proceed to
for Bulb Type A
for LED Type B



A

16.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

B

18.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
16.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4F 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
T6-10 (+B1) - 4F-10 Always Below 1 Ω
T6-1 (DOOR) - 4F-29 Always Below 1 Ω
T6-10 (+B1) or 4F-10 - Body ground Always 10 kΩ or higher
T6-1 (DOOR) or 4F-29 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

17.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

17.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E333581C57
1.333,0.365 1.625,0.583 0.292,0.219 4.76,0.5 5.052,0.719 0.292,0.219 3.302,1.125 3.531,1.479 false 0.167,0.177 0.479,0.333 0.313,0.156 10 false *a 1.406,0.406 1.865,0.635 0.458,0.229 10 false 4F 4.813,0.542 5.271,0.771 0.458,0.229 10 false MB 3.604,1.448 4.063,1.677 0.458,0.229 10 false ILE
*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
4F-29 - MB-1 (ILE) 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


18.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4F 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
T6-6 (+B1) - 4F-10 Always Below 1 Ω
T6-4 (DOOR) - 4F-29 Always Below 1 Ω
T6-6 (+B1) or 4F-10 - Body ground Always 10 kΩ or higher
T6-4 (DOOR) or 4F-29 - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

19.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

19.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E333581C57
1.333,0.365 1.625,0.583 0.292,0.219 4.76,0.5 5.052,0.719 0.292,0.219 3.302,1.125 3.531,1.479 false 0.167,0.177 0.479,0.333 0.313,0.156 10 false *a 1.406,0.406 1.865,0.635 0.458,0.229 10 false 4F 4.813,0.542 5.271,0.771 0.458,0.229 10 false MB 3.604,1.448 4.063,1.677 0.458,0.229 10 false ILE
*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
4F-29 - MB-1 (ILE) 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