RM36D0EC _59 Vehicle Exterior _083096 LIGHTING (EXT) _0402622 LIGHTING SYSTEM J

LIGHTING (EXT)  LIGHTING SYSTEM  Taillight Relay Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the operation of the taillights and license plate light.

WIRING DIAGRAM

E447743E05
3.042,1.573 3.521,1.969 0.479,0.396 10 false B 3.01,2.885 3.49,3.281 0.479,0.396 10 false B 3,4.26 3.479,4.656 0.479,0.396 10 false B 3,5.542 3.479,5.938 0.479,0.396 10 false B 4.042,6.927 4.521,7.323 0.479,0.396 10 false B 2.063,6.927 2.542,7.323 0.479,0.396 10 false B 0.802,6.917 1.281,7.313 0.479,0.396 10 false E 2.792,6.917 3.271,7.313 0.479,0.396 10 false E 1.781,5.583 2.26,5.979 0.479,0.396 10 false E 1.75,4.24 2.229,4.635 0.479,0.396 10 false E 1.76,2.917 2.24,3.313 0.479,0.396 10 false E 1.76,1.563 2.24,1.958 0.479,0.396 10 false E 1.531,1.542 2.01,1.938 0.479,0.396 10 false 3 1.521,2.906 2,3.302 0.479,0.396 10 false 3 1.531,4.24 2.01,4.635 0.479,0.396 10 false 1 1.552,5.552 2.031,5.948 0.479,0.396 10 false 1 2.281,6.958 2.76,7.354 0.479,0.396 10 false 1 4.281,6.938 4.76,7.333 0.479,0.396 10 false 1 2.604,6.948 3.083,7.344 0.479,0.396 10 false 2 0.573,6.969 1.052,7.365 0.479,0.396 10 false 2 3.25,5.583 3.729,5.979 0.479,0.396 10 false 2 3.229,4.24 3.708,4.635 0.479,0.396 10 false 2 3.24,2.906 3.719,3.302 0.479,0.396 10 false 1 3.25,1.563 3.729,1.958 0.479,0.396 10 false 1 1.5,3.51 4.51,3.948 3.01,0.438 10 false M14 1.5,3.667 4.51,4.104 3.01,0.438 10 false Rear Combination Light Socket and Wire RH 1.479,2.156 4.49,2.594 3.01,0.438 10 false N18 1.479,2.313 4.49,2.75 3.01,0.438 10 false Rear Combination Light Socket and Wire LH 1.563,4.854 4.573,5.292 3.01,0.438 10 false R25 1.573,4.99 4.583,5.427 3.01,0.438 10 false Rear Light Socket and Wire LH 1.552,6.167 4.563,6.604 3.01,0.438 10 false R26 1.552,6.323 4.563,6.76 3.01,0.438 10 false Rear Light Socket and Wire RH 2.656,7.542 5.667,7.979 3.01,0.438 10 false R4 2.656,7.667 5.667,8.104 3.01,0.438 10 false License Plate Light Assembly LH 0.521,7.563 2.583,7.865 2.063,0.302 10 false R5 0.531,7.729 2.594,8.031 2.063,0.302 10 false License Plate Light Assembly RH 0.844,8.396 2.906,8.698 2.063,0.302 10 false : CXPI Communication Line 5.427,4.688 7.104,5.063 1.677,0.375 10 false Main Body ECU (Multiplex Network Body ECU) 4.865,3.729 6.313,4.083 1.448,0.354 10 false 6F 4.875,3.865 6.323,4.219 1.448,0.354 10 false Power Distribution Box Assembly 4.594,1.542 5.073,1.938 0.479,0.396 10 false 30 5.219,1.677 5.698,2.073 0.479,0.396 10 false I/F 5.854,1.125 6.333,1.521 0.479,0.396 10 false CPU 5.271,1.25 5.75,1.646 0.479,0.396 10 false +B 2.344,1.865 5.354,2.302 3.01,0.438 10 false Tail 2.292,3.208 5.302,3.646 3.01,0.438 10 false Tail 2.323,4.573 5.333,5.01 3.01,0.438 10 false Tail 2.323,5.885 5.333,6.323 3.01,0.438 10 false Tail

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.



PROCEDURE

1.READ VALUE USING GTS
a.

Turn the light control switch to the TAIL position.


b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS

NG

5.CHECK HEADLIGHT ASSEMBLY LH
2.READ VALUE USING GTS
a.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Input Signal Taillight input condition OFF or ON OFF: Taillight not illuminated
ON: Taillight illuminated 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Input Signal
50003 475 1290
OK:

Display changes according to the light control switch operation.



Result:
Proceed to
OK
NG



OK

3.READ VALUE USING GTS

NG

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM>PROBLEM SYMPTOMS TABLE


3.READ VALUE USING GTS
a.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Output Signal Taillight output condition OFF or ON OFF: Taillight not illuminated
ON: Taillight illuminated 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Output Signal
50003 475 1291
OK:

Display changes according to the light control switch operation.



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - HEADLIGHT ASSEMBLY LH AND REAR COMBINATION LIGHT ASSEMBLY LH)

NG

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


4.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - HEADLIGHT ASSEMBLY LH AND REAR COMBINATION LIGHT ASSEMBLY LH)
a.

Disconnect the 6F and 6E power distribution box assembly connectors.


b.

Disconnect the A100*1, A110*2 or A104*3 headlight assembly LH connector.

*1: for Triple Beam Headlight, SFTM Made

*2: for Triple Beam Headlight, GTMC Made

*3: for Single Beam Headlight



c.

Disconnect the N18 rear combination light assembly LH connector.


d.

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

Standard Resistance:
for Triple Beam Headlight, SFTM Made
Tester Connection Switch Condition Specified Condition
6E-18 - A100-2 (B) Always Below 1 Ω
6F-30 - N18-1 (B) Always Below 1 Ω

for Triple Beam Headlight, GTMC Made
Tester Connection Switch Condition Specified Condition
6E-18 - A110-8 (B) Always Below 1 Ω
6F-30 - N18-1 (B) Always Below 1 Ω

for Single Beam Headlight, SFTM Made
Tester Connection Switch Condition Specified Condition
6E-18 - A104-3 (B) Always Below 1 Ω
6F-30 - N18-1 (B) Always Below 1 Ω

for Single Beam Headlight, GTMC Made
Tester Connection Switch Condition Specified Condition
6E-18 - A104-8 (B) Always Below 1 Ω
6F-30 - N18-1 (B) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HEADLIGHT ASSEMBLY LH
a.

Disconnect the A100*1, A110*2 or A104*3 headlight assembly LH connector.

*1: for Triple Beam Headlight, SFTM Made

*2: for Triple Beam Headlight, GTMC Made

*3: for Single Beam Headlight



b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT ASSEMBLY LH

for Triple Beam Headlight: Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for Triple Beam Headlight)>REMOVAL

for Single Beam Headlight: Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for Single Beam Headlight)>REMOVAL


NG

6.CHECK HEADLIGHT ASSEMBLY RH
6.CHECK HEADLIGHT ASSEMBLY RH
a.

Disconnect the A99*1, A109*2 or A103*3 headlight assembly RH connector.

*1: for Triple Beam Headlight, SFTM Made

*2: for Triple Beam Headlight, GTMC Made

*3: for Single Beam Headlight



b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT ASSEMBLY RH

for Triple Beam Headlight: Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for Triple Beam Headlight)>REMOVAL

for Single Beam Headlight: Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for Single Beam Headlight)>REMOVAL


NG

7.CHECK REAR COMBINATION LIGHT ASSEMBLY LH
7.CHECK REAR COMBINATION LIGHT ASSEMBLY LH
a.

Disconnect the N18 rear combination light assembly LH connector.


b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR COMBINATION LIGHT ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR COMBINATION LIGHT ASSEMBLY>DISASSEMBLY


NG

8.CHECK REAR COMBINATION LIGHT ASSEMBLY RH
8.CHECK REAR COMBINATION LIGHT ASSEMBLY RH
a.

Disconnect the M14 rear combination light assembly RH connector.


b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR COMBINATION LIGHT ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR COMBINATION LIGHT ASSEMBLY>DISASSEMBLY


NG

9.CHECK REAR LIGHT ASSEMBLY LH
9.CHECK REAR LIGHT ASSEMBLY LH
a.

Disconnect the R25 rear light socket and wire LH connector.


b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR LIGHT ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR LIGHT ASSEMBLY>DISASSEMBLY


NG

10.CHECK REAR LIGHT ASSEMBLY RH
10.CHECK REAR LIGHT ASSEMBLY RH
a.

Disconnect the R26 rear light socket and wire RH connector.


b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE REAR LIGHT ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>REAR LIGHT ASSEMBLY>DISASSEMBLY


NG

11.CHECK LICENSE PLATE LIGHT ASSEMBLY LH
11.CHECK LICENSE PLATE LIGHT ASSEMBLY LH
a.

Disconnect the R4 license plate light assembly LH connector.


b.

Using the GTS, read the Data List.

Body Electrical > Power Distribution Box > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Tail Light Fuse Shut Off Status Taillight fuse OFF or ON OFF: Fuse not shut off
ON: Fuse shut off 		-
Body Electrical > Power Distribution Box > Data List
Tester Display
Tail Light Fuse Shut Off Status
50003 475 1293
OK:

The Data List value displays "OFF".



Result:
Proceed to
OK
NG



OK

REPLACE LICENSE PLATE LIGHT ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>LICENSE PLATE LIGHT ASSEMBLY>REMOVAL


NG

12.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - REAR COMBINATION LIGHT SOCKET AND WIRE)
12.CHECK HARNESS AND CONNECTOR (POWER DISTRIBUTION BOX ASSEMBLY - REAR COMBINATION LIGHT SOCKET AND WIRE)
a.

Disconnect the 6F and 6E power distribution box assembly connectors.


b.

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

Standard Resistance:
for Triple Beam Headlight, SFTM Made
Tester Connection Condition Specified Condition
6E-18 or A100-2 (B) - Body ground Always 10 kΩ or higher
6F-30 or N18-1 (B) - Body ground Always 10 kΩ or higher

for Triple Beam Headlight, GTMC Made
Tester Connection Condition Specified Condition
6E-18 or A110-8 (B) - Body ground Always 10 kΩ or higher
6F-30 or N18-1 (B) - Body ground Always 10 kΩ or higher

for Single Beam Headlight, SFTM Made
Tester Connection Condition Specified Condition
6E-18 or A104-3 (B) - Body ground Always 10 kΩ or higher
6F-30 or N18-1 (B) - Body ground Always 10 kΩ or higher

for Single Beam Headlight, GTMC Made
Tester Connection Condition Specified Condition
6E-18 or A104-8 (B) - Body ground Always 10 kΩ or higher
6F-30 or N18-1 (B) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR