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

LIGHTING (INT)  LIGHTING SYSTEM(except 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

·

Spot Light Assembly*1

·

No. 1 Room Light Assembly*2

*1: Type A

*2: Type B



WIRING DIAGRAM

for GTMC Made (except M20C-FKS)
E512265E07
0.771,0.979 2.76,1.177 1.99,0.198 10 false INP STD NO. 3 0.708,0.26 4.073,0.458 3.365,0.198 10 false from Auxiliary Battery 3.854,2.083 4.615,2.542 0.76,0.458 10 false DOME CUT RELAY 5,2.073 5.313,2.271 0.313,0.198 10 false IC 2.583,0.76 2.896,0.958 0.313,0.198 10 false 10B 2.656,0.542 2.813,0.74 0.156,0.198 10 false 1 2.583,1.604 2.896,1.802 0.313,0.198 10 false 10F 2.604,1.385 2.917,1.583 0.313,0.198 10 false 11 2.917,2.844 5.24,3.302 2.323,0.458 10 false Power Distribution Box Assembly 5.844,5.344 6.865,6.375 1.021,1.031 10 false Main Body ECU (Multiplex Network Body ECU) 5.844,5.135 6.25,5.333 0.406,0.198 10 false I85 5.667,4 5.823,4.198 0.156,0.198 10 false 5 5.948,4.135 6.406,4.333 0.458,0.198 10 false ILE 3.302,4.021 3.615,4.219 0.313,0.198 10 false 6 3.51,6.083 4.958,6.365 1.448,0.281 10 false Map Light Assembly 3.51,5.917 3.969,6.115 0.458,0.198 10 false T6 3.521,4.115 3.979,4.313 0.458,0.198 10 false +B1 4.979,4.021 5.135,4.219 0.156,0.198 10 false 4 4.396,4.125 5.01,4.323 0.615,0.198 10 false DOOR 4.958,5.323 5.271,5.521 0.313,0.198 10 false 14 4.5,5.438 4.958,5.635 0.458,0.198 10 false GND 3.292,4.635 3.448,4.833 0.156,0.198 10 false 3 3.531,4.76 4.146,4.958 0.615,0.198 10 false RLMP 1.01,4.625 1.573,4.823 0.563,0.198 10 false 5 1.24,4.75 1.396,4.948 0.156,0.198 10 false B 2.323,5.438 2.479,5.635 0.156,0.198 10 false E 2.563,5.323 3.177,5.531 0.615,0.208 10 false 1*1, 3*2 2.563,4.635 3.094,4.833 0.531,0.198 10 false 2*1, 1*2 2.146,4.74 2.604,4.938 0.458,0.198 10 false CTY 1.01,5.885 1.917,6.083 0.906,0.198 10 false T19*1, T21*2 1,6.063 2.844,6.438 1.844,0.375 10 false Spot Light Assembly*1, No. 1 Room Light Assembly*2 3.052,6.5 5.042,6.698 1.99,0.198 10 false *1: Type A 5.115,6.5 7.031,6.74 1.917,0.24 10 false *2: Type B

for GTMC Made (M20C-FKS)
E512265E04
0.771,0.979 2.76,1.177 1.99,0.198 10 false INP STD NO. 3 0.708,0.26 4.073,0.458 3.365,0.198 10 false from Auxiliary Battery 3.854,2.083 4.615,2.542 0.76,0.458 10 false DOME CUT RELAY 5,2.073 5.313,2.271 0.313,0.198 10 false IC 2.583,0.76 2.896,0.958 0.313,0.198 10 false 10B 2.656,0.542 2.813,0.74 0.156,0.198 10 false 1 2.583,1.604 2.896,1.802 0.313,0.198 10 false 10F 2.604,1.385 2.917,1.583 0.313,0.198 10 false 11 2.917,2.844 5.24,3.302 2.323,0.458 10 false Power Distribution Box Assembly 5.844,5.344 6.865,6.375 1.021,1.031 10 false Main Body ECU (Multiplex Network Body ECU) 5.844,5.135 6.25,5.333 0.406,0.198 10 false I85 5.667,4 5.823,4.198 0.156,0.198 10 false 5 5.948,4.135 6.406,4.333 0.458,0.198 10 false ILE 3.302,4.021 3.615,4.219 0.313,0.198 10 false 6 3.51,6.083 4.958,6.365 1.448,0.281 10 false Map Light Assembly 3.51,5.917 3.969,6.115 0.458,0.198 10 false T6 3.521,4.115 3.979,4.313 0.458,0.198 10 false +B1 4.979,4.021 5.135,4.219 0.156,0.198 10 false 4 4.396,4.125 5.01,4.323 0.615,0.198 10 false DOOR 4.958,5.323 5.271,5.521 0.313,0.198 10 false 14 4.5,5.438 4.958,5.635 0.458,0.198 10 false GND 3.292,4.635 3.448,4.833 0.156,0.198 10 false 3 3.531,4.76 4.146,4.958 0.615,0.198 10 false RLMP 1.01,4.625 1.573,4.823 0.563,0.198 10 false 5 1.24,4.75 1.396,4.948 0.156,0.198 10 false B 2.323,5.438 2.479,5.635 0.156,0.198 10 false E 2.563,5.323 3.177,5.531 0.615,0.208 10 false 1 2.563,4.635 3.094,4.833 0.531,0.198 10 false 2 2.146,4.74 2.604,4.938 0.458,0.198 10 false CTY 1.01,5.885 1.917,6.083 0.906,0.198 10 false T16 1,6.063 2.844,6.438 1.844,0.375 10 false Spot Light Assembly

for TFTM Made (except M20E-FKS, M20A-FKS)
E512265E05
0.771,0.979 2.76,1.177 1.99,0.198 10 false INP STD NO. 3 0.708,0.26 4.073,0.458 3.365,0.198 10 false from Auxiliary Battery 3.854,2.083 4.615,2.542 0.76,0.458 10 false DOME CUT RELAY 5,2.073 5.313,2.271 0.313,0.198 10 false IC 2.583,0.76 2.896,0.958 0.313,0.198 10 false 10B 2.656,0.542 2.813,0.74 0.156,0.198 10 false 1 2.583,1.604 2.896,1.802 0.313,0.198 10 false 10F 2.604,1.385 2.917,1.583 0.313,0.198 10 false 11 2.917,2.844 5.24,3.302 2.323,0.458 10 false Power Distribution Box Assembly 5.844,5.344 6.865,6.375 1.021,1.031 10 false Main Body ECU (Multiplex Network Body ECU) 5.844,5.135 6.25,5.333 0.406,0.198 10 false I85 5.667,4 5.823,4.198 0.156,0.198 10 false 5 5.948,4.135 6.406,4.333 0.458,0.198 10 false ILE 3.302,4.021 3.615,4.219 0.313,0.198 10 false 6 3.51,6.083 4.958,6.365 1.448,0.281 10 false Map Light Assembly 3.51,5.917 3.969,6.115 0.458,0.198 10 false T6 3.521,4.115 3.979,4.313 0.458,0.198 10 false +B1 4.979,4.021 5.135,4.219 0.156,0.198 10 false 4 4.396,4.125 5.01,4.323 0.615,0.198 10 false DOOR 4.958,5.323 5.271,5.521 0.313,0.198 10 false 14 4.5,5.438 4.958,5.635 0.458,0.198 10 false GND 3.292,4.635 3.448,4.833 0.156,0.198 10 false 3 3.531,4.76 4.146,4.958 0.615,0.198 10 false RLMP 1.01,4.625 1.573,4.823 0.563,0.198 10 false 5 1.24,4.75 1.396,4.948 0.156,0.198 10 false B 2.323,5.438 2.479,5.635 0.156,0.198 10 false E 2.563,5.323 3.177,5.531 0.615,0.208 10 false 1*1, 3*2 2.563,4.635 3.094,4.833 0.531,0.198 10 false 2*1, 1*2 2.146,4.74 2.604,4.938 0.458,0.198 10 false CTY 1.01,5.885 1.917,6.083 0.906,0.198 10 false T16 1,6.063 2.844,6.438 1.844,0.375 10 false Spot Light Assembly*1, No. 1 Room Light Assembly*2 3.052,6.5 5.042,6.698 1.99,0.198 10 false *1: Type A 5.115,6.5 7.031,6.74 1.917,0.24 10 false *2: Type B

for TFTM Made (M20E-FKS, M20A-FKS)
E512265E06
0.771,0.979 2.76,1.177 1.99,0.198 10 false INP STD NO. 3 0.708,0.26 4.073,0.458 3.365,0.198 10 false from Auxiliary Battery 3.854,2.083 4.615,2.542 0.76,0.458 10 false DOME CUT RELAY 5,2.073 5.313,2.271 0.313,0.198 10 false IC 2.583,0.76 2.896,0.958 0.313,0.198 10 false 10B 2.656,0.542 2.813,0.74 0.156,0.198 10 false 1 2.583,1.604 2.896,1.802 0.313,0.198 10 false 10F 2.604,1.385 2.917,1.583 0.313,0.198 10 false 11 2.917,2.844 5.24,3.302 2.323,0.458 10 false Power Distribution Box Assembly 5.844,5.344 6.865,6.375 1.021,1.031 10 false Main Body ECU (Multiplex Network Body ECU) 5.844,5.135 6.25,5.333 0.406,0.198 10 false I85 5.667,4 5.823,4.198 0.156,0.198 10 false 5 5.948,4.135 6.406,4.333 0.458,0.198 10 false ILE 3.302,4.021 3.615,4.219 0.313,0.198 10 false 6 3.51,6.083 4.958,6.365 1.448,0.281 10 false Map Light Assembly 3.51,5.917 3.969,6.115 0.458,0.198 10 false T6 3.521,4.115 3.979,4.313 0.458,0.198 10 false +B1 4.979,4.021 5.135,4.219 0.156,0.198 10 false 4 4.396,4.125 5.01,4.323 0.615,0.198 10 false DOOR 4.958,5.323 5.271,5.521 0.313,0.198 10 false 14 4.5,5.438 4.958,5.635 0.458,0.198 10 false GND 3.292,4.635 3.448,4.833 0.156,0.198 10 false 3 3.531,4.76 4.146,4.958 0.615,0.198 10 false RLMP 1.01,4.625 1.573,4.823 0.563,0.198 10 false 5 1.24,4.75 1.396,4.948 0.156,0.198 10 false B 2.323,5.438 2.479,5.635 0.156,0.198 10 false E 2.563,5.323 3.177,5.531 0.615,0.208 10 false 1 2.563,4.635 3.094,4.833 0.531,0.198 10 false 2 2.146,4.74 2.604,4.938 0.458,0.198 10 false CTY 1.01,5.885 1.917,6.083 0.906,0.198 10 false T19 1,6.063 2.844,6.438 1.844,0.375 10 false Spot Light 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.



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 (except NR Series Engine)>Interior Light Auto Cut Circuit


PROCEDURE

1.PERFORM ACTIVE TEST USING GTS
a.

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* OFF or ON Perform the Active Test with the door linked switch of the map light assembly on and switch of the No. 1 room light assembly in the DOOR position.

*: Refer to Operation Check for the lights that are controlled by the illuminated entry system.

Click hereVehicle Interior>LIGHTING (INT)>LIGHTING SYSTEM (except NR Series Engine)>OPERATION CHECK


Body Electrical > Main Body > Active Test
Tester Display
Illuminated Entry System
50004 449 20
OK:

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



Result:
Result Proceed to
OK A
NG (Map light assembly does not come on) B
NG (Spot light assembly does not come on) (Type A) C
NG (No. 1 room light assembly does not come on) (Type B) D
NG (Map light assembly, No. 1 room light assembly and spot light assembly does not come on) E



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 MAP LIGHT ASSEMBLY

C

4.INSPECT SPOT LIGHT ASSEMBLY

D

7.INSPECT NO. 1 ROOM LIGHT ASSEMBLY

E

10.INSPECT MAP LIGHT ASSEMBLY
2.INSPECT MAP LIGHT ASSEMBLY
a.

Inspect the map light assembly.

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


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE MAP LIGHT ASSEMBLY

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


3.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 10F 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
T6-6 (+B1) - 10F-11 Always Below 1 Ω
T6-6 (+B1) or 10F-11 - Body ground Always 10 kΩ or higher


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

4.INSPECT SPOT LIGHT ASSEMBLY
a.

Inspect the spot light assembly.

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


Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (SPOT LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE SPOT LIGHT ASSEMBLY

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


5.CHECK HARNESS AND CONNECTOR (SPOT LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 10F power distribution box assembly connector.


b.

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

Standard Resistance (for GTMC Made (except M20C-FKS))
Tester Connection Condition Specified Condition
T19-5 (B) - 10F-11 Always Below 1 Ω
T19-5 (B) or 10F-11 - Body ground Always 10 kΩ or higher

Standard Resistance (for GTMC Made (M20C-FKS))
Tester Connection Condition Specified Condition
T16-5 (B) - 10F-11 Always Below 1 Ω
T16-5 (B) or 10F-11 - Body ground Always 10 kΩ or higher

Standard Resistance (for TFTM Made (except M20E-FKS, M20A-FKS))
Tester Connection Condition Specified Condition
T16-5 (B) - 10F-11 Always Below 1 Ω
T16-5 (B) or 10F-11 - Body ground Always 10 kΩ or higher

Standard Resistance (for TFTM Made (M20E-FKS, M20A-FKS))
Tester Connection Condition Specified Condition
T19-5 (B) - 10F-11 Always Below 1 Ω
T19-5 (B) or 10F-11 - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT ASSEMBLY OR SPOT LIGHT ASSEMBLY - MAP LIGHT ASSEMBLY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT ASSEMBLY OR SPOT LIGHT ASSEMBLY - MAP LIGHT ASSEMBLY AND BODY GROUND)
a.

Disconnect the T6 map light assembly connector.


b.

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

Standard Resistance (for GTMC Made (except M20C-FKS)) (Type A)
Tester Connection Condition Specified Condition
T19-2 (CTY) - T6-3 (RLMP) Always Below 1 Ω
T19-2 (CTY) or T6-3 (RLMP) - Body ground Always 10 kΩ or higher
T19-1 (E) - Body ground Always Below 1 Ω

Standard Resistance (for GTMC Made (M20C-FKS))
Tester Connection Condition Specified Condition
T16-2 (CTY) - T6-3 (RLMP) Always Below 1 Ω
T16-2 (CTY) or T6-3 (RLMP) - Body ground Always 10 kΩ or higher
T16-1 (E) - Body ground Always Below 1 Ω

Standard Resistance (for TFTM Made (except M20E-FKS, M20A-FKS))
Tester Connection Condition Specified Condition
T16-2 (CTY) - T6-3 (RLMP) Always Below 1 Ω
T16-2 (CTY) or T6-3 (RLMP) - Body ground Always 10 kΩ or higher
T16-1 (E) - Body ground Always Below 1 Ω

Standard Resistance (for TFTM Made (M20E-FKS, M20A-FKS))
Tester Connection Condition Specified Condition
T19-2 (CTY) - T6-3 (RLMP) Always Below 1 Ω
T19-2 (CTY) or T6-3 (RLMP) - Body ground Always 10 kΩ or higher
T19-1 (E) - Body ground 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

7.INSPECT NO. 1 ROOM LIGHT ASSEMBLY
a.

Inspect the No. 1 room light assembly.

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


Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT ASSEMBLY OR SPOT LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE NO. 1 ROOM LIGHT ASSEMBLY

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


8.CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT ASSEMBLY OR SPOT LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 10F power distribution box assembly connector.


b.

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

Standard Resistance (for GTMC Made (except M20C-FKS))
Tester Connection Condition Specified Condition
T21-5 (B) - 10F-11 Always Below 1 Ω
T21-5 (B) or 10F-11 - Body ground Always 10 kΩ or higher

Standard Resistance (for TFTM Made (except M20E-FKS, M20A-FKS))
Tester Connection Condition Specified Condition
T16-5 (B) - 10F-11 Always Below 1 Ω
T16-5 (B) or 10F-11 - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



OK

9.CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT ASSEMBLY OR SPOT LIGHT ASSEMBLY - MAP LIGHT ASSEMBLY AND BODY GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT ASSEMBLY OR SPOT LIGHT ASSEMBLY - MAP LIGHT ASSEMBLY AND BODY GROUND)
a.

Disconnect the T6 map light assembly connector.


b.

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

Standard Resistance (for GTMC Made (except M20C-FKS))
Tester Connection Condition Specified Condition
T21-1 (CTY) - T6-3 (RLMP) Always Below 1 Ω
T21-1 (CTY) or T6-3 (RLMP) - Body ground Always 10 kΩ or higher
T21-3 (E) - Body ground Always Below 1 Ω

Standard Resistance (for TFTM Made (except M20E-FKS, M20A-FKS))
Tester Connection Condition Specified Condition
T16-1 (CTY) - T6-3 (RLMP) Always Below 1 Ω
T16-1 (CTY) or T6-3 (RLMP) - Body ground Always 10 kΩ or higher
T16-3 (E) - Body ground 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

10.INSPECT MAP LIGHT ASSEMBLY
a.

Inspect the map light assembly.

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


Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)

NG

REPLACE MAP LIGHT ASSEMBLY

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


11.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY)
a.

Disconnect the 10F 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
T6-6 (+B1) - 10F-11 Always Below 1 Ω
T6-6 (+B1) or 10F-11 - Body ground Always 10 kΩ or higher


Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - 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
T6-4 (DOOR) - I85-5 (ILE) Always Below 1 Ω
T6-4 (DOOR) or I85-5 (ILE) - 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