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 Auto Cut Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls operation of the DOME CUT relay in order to supply power to the interior lights. When the battery saving function operates while the interior lights are on, the main body ECU (multiplex network body ECU) opens the DOME CUT relay to turn off the lights.

WIRING DIAGRAM

E401971E08
1.156,0.208 2.323,0.427 1.167,0.219 10 false from Battery 1.344,0.875 2.26,1.073 0.917,0.198 10 false J/B-AM 3.26,0.875 3.74,1.063 0.479,0.188 10 false DOME 4.271,1.354 5.188,1.552 0.917,0.198 10 false DOME CUT 5.844,0.615 6.76,0.813 0.917,0.198 10 false DOMR 5.427,3.073 7.063,3.49 1.635,0.417 10 false Main Body ECU (Multiplex Network Body ECU) 2.906,2.677 5.792,2.865 2.885,0.188 10 false Driver Side Junction Block Assembly 0.385,2.01 1.792,2.219 1.406,0.208 10 false to each Interior Light 2.583,0.719 3.052,0.906 0.469,0.188 10 false 4D 2.625,0.542 3.094,0.729 0.469,0.188 10 false 1 2.594,2.135 3.063,2.323 0.469,0.188 10 false 19 2.583,2.313 3.052,2.5 0.469,0.188 10 false 4A 2.594,1.531 3.063,1.719 0.469,0.188 10 false 10 2.583,1.698 3.052,1.885 0.469,0.188 10 false 4F 5.594,0.625 6.063,0.813 0.469,0.188 10 false 23 5.427,2.938 5.74,3.135 0.313,0.198 10 false MB

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




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
Relay for Interior Light Auto Cut Function DOME CUT relay OFF or ON When performing this Active Test, turn all the interior lights on.
·

OFF: DOME CUT relay on (interior lights turn on)

·

ON: DOME CUT relay off (interior lights turn off)


Body Electrical > Main Body > Active Test
Tester Display
Relay for Interior Light Auto Cut Function
50004 123 66
OK:

All of the interior lights turn off when ON is selected.



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.CHECK HARNESS AND CONNECTOR (POWER SOURCE - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
2.CHECK HARNESS AND CONNECTOR (POWER SOURCE - DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
a.

Disconnect the 4D driver side junction block assembly connector.


b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
4D-1 - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

3.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.INSPECT DRIVER SIDE JUNCTION BLOCK ASSEMBLY
E333583C15
1.958,0.677 2.271,0.875 0.313,0.198 5.177,0.688 5.49,0.885 0.313,0.198 2.354,2.531 2.667,2.729 0.313,0.198 5.729,2.385 6.042,2.583 0.313,0.198 3.552,3.427 3.271,3.094 false 0.208,0.24 0.521,0.396 0.313,0.156 10 false *a 2.042,0.719 2.49,1.052 0.448,0.333 10 false 4A 5.24,0.719 5.688,1.052 0.448,0.333 10 false 4F 2.427,2.563 2.875,2.896 0.448,0.333 10 false MB 5.813,2.417 6.26,2.75 0.448,0.333 10 false 4D 3.635,3.406 4.198,3.708 0.563,0.302 10 false DOMR
*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 voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
4F-10 - Battery negative (-) Battery positive (+) → 4D-1
Battery negative (-) → MB-23 (DOMR) 		11 to 14 V
4A-19 - Battery negative (-) Battery positive (+) → 4D-1
Battery negative (-) → MB-23 (DOMR) 		11 to 14 V



c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
4D-1 - 4F-10 Always 10 kΩ or higher
4D-1 - 4A-19 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

REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

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