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

LIGHTING (EXT)  LIGHTING SYSTEM  High Beam Headlight Circuit  


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the high beam headlights.

WIRING DIAGRAM

for Triple Beam Headlight


E510611E06
1.833,2.865 5.813,3.063 3.979,0.198 10 false Headlight Assembly RH 1.875,1.604 3.542,1.802 1.667,0.198 10 false Headlight Assembly LH 5.219,2.167 6.885,3.635 1.667,1.469 10 false Main Body ECU (Multiplex Network Body ECU) 5.615,0.906 7.063,2.438 1.448,1.531 10 false DIM 5.313,0.917 6.76,2.448 1.448,1.531 10 false 22 3.281,1.031 4.729,2.563 1.448,1.531 10 false HI 3.313,2.292 4.76,3.802 1.448,1.51 10 false HI 1.938,2.292 3.385,3.802 1.448,1.51 10 false E 1.948,1.031 3.396,2.542 1.448,1.51 10 false E 1.844,1.406 5.823,1.604 3.979,0.198 10 false A62*1, A110*2 5.188,1.979 6.635,3.51 1.448,1.531 10 false G169 3.635,0.896 5.083,2.427 1.448,1.531 10 false 4*1, 5*2 1.26,0.875 2.708,2.406 1.448,1.531 10 false 2*1, 3*2 1.823,2.667 5.802,2.865 3.979,0.198 10 false A61*1, A109*2 3.646,2.146 5.094,3.677 1.448,1.531 10 false 4*1, 5*2 1.229,2.156 2.677,3.688 1.448,1.531 10 false 2*1, 3*2 0.688,3.469 2.688,3.802 2,0.333 10 false *1: for SFTM Made 2.24,3.469 4.24,3.802 2,0.333 10 false *2: for GTMC Made


for Single Beam Headlight


E510612E06
5.427,2.396 7.104,2.906 1.677,0.51 10 false Main Body ECU (Multiplex Network Body ECU) 0.594,1.792 1.021,2.083 0.427,0.292 10 false DIM 6,1.135 7.156,1.698 1.156,0.563 10 false 22 6.313,1.135 6.74,1.427 0.427,0.292 10 false DIM 0.438,0.635 1.521,1.031 1.083,0.396 10 false H-LP RH 1.531,0.469 3.49,0.833 1.958,0.365 10 false from Auxiliary Battery 1.042,1.146 2.125,1.542 1.083,0.396 10 false 1 1.052,1.396 2.135,1.792 1.083,0.396 10 false 3 0.396,1.135 1.479,1.531 1.083,0.396 10 false 2 0.396,1.396 1.479,1.792 1.083,0.396 10 false 5 1.719,2.042 2.802,2.438 1.083,0.396 10 false H-LP HI LH 1.729,3.396 2.813,3.792 1.083,0.396 10 false H-LP HI RH 3.323,2.74 5.313,3.042 1.99,0.302 10 false Headlight Assembly LH 3.417,2.24 4.5,2.635 1.083,0.396 10 false E 3.417,1.885 4.5,2.281 1.083,0.396 10 false HI 2.781,2.125 3.865,2.521 1.083,0.396 10 false 5*1, 6*2 2.792,3.125 3.875,3.521 1.083,0.396 10 false 7*1, 5*2 3.427,3.25 4.51,3.646 1.083,0.396 10 false HI 3.385,3.615 4.469,4.01 1.083,0.396 10 false E 3.219,2.563 5.208,2.865 1.99,0.302 10 false A104 3.229,3.938 5.219,4.24 1.99,0.302 10 false A103 3.323,4.115 5.313,4.417 1.99,0.302 10 false Headlight Assembly RH 5.427,2.208 6.583,2.771 1.156,0.563 10 false G169 2.771,1.729 3.854,2.125 1.083,0.396 10 false 7*1, 5*2 2.781,3.479 3.865,3.875 1.083,0.396 10 false 5*1, 6*2 0.177,4.458 1.958,4.813 1.781,0.354 10 false *1: for SFTM Made 1.625,4.458 3.406,4.813 1.781,0.354 10 false *2: for GTMC Made


CAUTION / NOTICE / HINT

NOTICE:
·

for Single Beam Headlight

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

·

Check the operation of the low beam headlights. If the low beam headlights do not operate normally, refer to Problem Symptoms Table.

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

·

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



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
High Beam Headlight High beam headlights OFF or ON -
Body Electrical > Main Body > Active Test
Tester Display
High Beam Headlight
50004 449 52
OK:

High beam headlights illuminate.



Result:
Result Proceed to
OK A
NG (for Triple Beam Headlight) B
NG (for Single Beam Headlight) C



A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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


B

2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - HEADLIGHT ASSEMBLY)

C

3.INSPECT DIM RELAY
2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - HEADLIGHT ASSEMBLY)

*1: for SFTM Made

*2: for GTMC Made


a.

Disconnect the G169 main body ECU (multiplex network body ECU) connector.


b.

Disconnect the A62*1 or A110*2 headlight assembly LH connector.


c.

Disconnect the A61*1 or A109*2 headlight assembly RH connector.


d.

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

Standard Resistance:
for SFTM Made
Tester Connection Condition Specified Condition
G169-22 (DIM) - A62-4 (HI) Always Below 1 Ω
G169-22 (DIM) or A62-4 (HI) - Body ground Always 10 kΩ or higher

for GTMC Made
Tester Connection Condition Specified Condition
G169-22 (DIM) - A110-5 (HI) Always Below 1 Ω
G169-22 (DIM) or A110-5 (HI) - 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

3.INSPECT DIM RELAY

Click hereVehicle Exterior>LIGHTING (EXT)>RELAY>ON-VEHICLE INSPECTION

Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (DIM RELAY - BATTERY)

NG

REPLACE DIM RELAY

4.CHECK HARNESS AND CONNECTOR (DIM RELAY - BATTERY)
a.
B340809C08
0.115,0.083 0.427,0.281 0.313,0.198 10 false *a
*a Front view of wire harness connector
(to DIM Relay)


Remove the DIM relay.


b.

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

Standard Voltage:
Tester Connection Switch Condition Specified Condition
2 (DIM relay) - Body ground Ignition switch off 11 to 14 V
5 (DIM relay) - Body ground Ignition switch off 11 to 14 V



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (DIM RELAY - HEADLIGHT ASSEMBLY LH)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (DIM RELAY - HEADLIGHT ASSEMBLY LH)
a.

Remove the DIM relay.


b.

Disconnect the A103 headlight assembly RH connector.


c.

Disconnect the A104 headlight assembly LH connector.


d.

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

Standard Resistance:
for SFTM Made
Tester Connection Condition Specified Condition
3 (DIM relay) - A103-7 (HI) Always Below 1 Ω
3 (DIM relay) or A103-7 (HI) - Body ground Always 10 kΩ or higher

for GTMC Made
Tester Connection Condition Specified Condition
3 (DIM relay) - A103-5 (HI) Always Below 1 Ω
3 (DIM relay) or A103-5 (HI) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (DIM RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (DIM RELAY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Remove the DIM relay.


b.

Disconnect the G169 main body ECU (multiplex network body ECU) connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
1 (DIM relay) - G169-22 (DIM) Always Below 1 Ω
1 (DIM relay) or G169-22 (DIM) - 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