RM35X0E _59 Vehicle Exterior _079256 LIGHTING (EXT) _0396321 LIGHTING SYSTEM(w/ Headlight ECU) J

LIGHTING (EXT)  LIGHTING SYSTEM(w/ Headlight ECU)  Headlight Dimmer Switch Circuit  


DESCRIPTION

The steering sensor receives the following switch information:

·

Light control switch in OFF*1, TAIL, HEAD, AUTO position

·

Dimmer switch in High, Low or Flash position

·

Fog light switch in Fr, Fr&Rr*2 or off position

*1: w/ Light Control Switch OFF Position

*2: w/ Rear Fog Light



WIRING DIAGRAM

for LH Side Type


E406759E09
0.313,4.635 0.625,4.833 0.313,0.198 10 false IC 1.188,1.708 1.646,1.906 0.458,0.198 10 false 5 V 2.719,0.323 3.333,0.521 0.615,0.198 10 false HEAD 3.281,0.438 3.74,0.635 0.458,0.198 10 false N3 3.313,0.24 3.469,0.438 0.156,0.198 10 false 7 5.042,0.333 5.354,0.531 0.313,0.198 10 false 16 5.656,0.156 5.969,0.354 0.313,0.198 10 false +B 5.281,0.344 5.896,0.542 0.615,0.198 10 false HEAD 2.896,3.417 3.208,3.615 0.313,0.198 10 false HU 4.458,3.417 4.771,3.615 0.313,0.198 10 false HU 5.865,2.021 6.177,2.219 0.313,0.198 10 false HU 6.229,2.021 6.542,2.219 0.313,0.198 10 false HF 2.917,4.073 3.229,4.271 0.313,0.198 10 false HF 4.458,4.073 4.771,4.271 0.313,0.198 10 false HF 6.583,2.021 6.896,2.219 0.313,0.198 10 false EL 3.281,6.469 3.594,6.667 0.313,0.198 10 false z7 3.271,3.531 3.583,3.729 0.313,0.198 10 false z7 3.281,4.188 3.594,4.385 0.313,0.198 10 false z7 3.271,5.823 3.583,6.021 0.313,0.198 10 false z7 3.302,3.333 3.458,3.531 0.156,0.198 10 false 6 3.313,3.979 3.469,4.177 0.156,0.198 10 false 7 4.156,3.323 4.313,3.521 0.156,0.198 10 false 1 4.167,3.979 4.323,4.177 0.156,0.198 10 false 6 4.135,6.49 4.458,6.719 0.323,0.229 10 false z9 4.135,3.531 4.635,4.031 0.5,0.5 10 false z9 4.125,4.177 4.438,4.469 0.313,0.292 10 false z9 4.115,5.813 4.427,6.177 0.313,0.365 10 false z9 2.813,5.708 3.583,5.906 0.771,0.198 10 false BFG 4.521,5.708 5.292,5.906 0.771,0.198 10 false BFG 4.552,6.375 5.01,6.573 0.458,0.198 10 false B* 2.938,6.365 3.396,6.563 0.458,0.198 10 false B* 3.271,5.625 3.583,5.823 0.313,0.198 10 false 11 3.271,6.281 3.583,6.479 0.313,0.198 10 false 12 4.156,5.604 4.313,5.833 0.156,0.229 10 false 4 4.125,6.281 4.438,6.479 0.313,0.198 10 false 13 5.833,4.76 6.292,4.958 0.458,0.198 10 false BFG 6.281,4.76 6.438,4.958 0.156,0.198 10 false B 6.594,4.76 6.906,4.958 0.313,0.198 10 false EL 5.26,2.208 6.635,2.406 1.375,0.198 10 false High 5.26,2.406 6.49,2.604 1.229,0.198 10 false Low 5.219,2.615 6.292,2.813 1.073,0.198 10 false Flash 4.74,2.813 6.729,3.01 1.99,0.198 10 false Dimmer Switch 5.292,4.958 5.75,5.156 0.458,0.198 10 false OFF 5.302,5.156 5.917,5.354 0.615,0.198 10 false Fr 5.208,5.354 6.281,5.552 1.073,0.198 10 false Fr&Rr* 4.938,5.552 6.469,5.75 1.531,0.198 10 false Fog Light Switch 4.948,0.844 5.406,1.042 0.458,0.198 10 false N19 4.938,0.99 6.604,2.052 1.667,1.063 10 false Main Body ECU (Multiplex Network Body ECU) 1.25,7.542 3.542,7.74 2.292,0.198 10 false Steering Sensor 3.323,7.469 4.313,8.021 0.99,0.552 10 false Steering Wheel Switch Housing 5.26,7.531 6.844,7.927 1.583,0.396 10 false Turn Signal Switch 0.219,8.354 3.583,8.552 3.365,0.198 10 false *: w/ Rear Fog Light

E406760E11
0.323,4.094 0.635,4.292 0.313,0.198 10 false IC 2.344,3.427 3.115,3.625 0.771,0.198 10 false L_OFF* 2.677,4.292 2.833,4.49 0.156,0.198 10 false A 4.229,4.302 4.385,4.5 0.156,0.198 10 false A 4.229,3.427 5,3.625 0.771,0.198 10 false L_OFF* 6.083,0.854 6.24,1.052 0.156,0.198 10 false T 2.677,5.063 2.833,5.26 0.156,0.198 10 false T 4.24,5.052 4.396,5.25 0.156,0.198 10 false T 5.771,0.844 5.927,1.042 0.156,0.198 10 false A 5.188,0.833 5.958,1.031 0.771,0.198 10 false L_OFF 6.396,0.844 6.552,1.042 0.156,0.198 10 false H 4.24,5.813 4.396,6.01 0.156,0.198 10 false H 2.677,5.813 2.833,6.01 0.156,0.198 10 false H 6.698,0.844 7.01,1.042 0.313,0.198 10 false EL 4.542,1.74 5.156,1.938 0.615,0.198 10 false AUTO 4.615,2.24 5.229,2.438 0.615,0.198 10 false TAIL 4.552,2.656 5.167,2.854 0.615,0.198 10 false HEAD 4.365,2.844 5.188,3.542 0.823,0.698 10 false Light Control Switch 3.813,3.542 4.156,3.875 0.344,0.333 10 false z9 3.813,4.406 4.125,4.75 0.313,0.344 10 false z9 3.813,5.177 4.073,5.448 0.26,0.271 10 false z9 3.823,5.927 4.063,6.156 0.24,0.229 10 false z9 3.813,7.094 4.083,7.365 0.271,0.271 10 false z9 2.958,7.083 3.271,7.281 0.313,0.198 10 false z7 2.948,3.542 3.26,3.74 0.313,0.198 10 false z7 2.958,4.406 3.271,4.604 0.313,0.198 10 false z7 2.958,5.167 3.271,5.365 0.313,0.198 10 false z7 2.958,5.927 3.271,6.125 0.313,0.198 10 false z7 4.25,6.969 4.563,7.167 0.313,0.198 10 false EL 2.604,6.979 2.917,7.177 0.313,0.198 10 false EL 3.844,3.333 4,3.531 0.156,0.198 10 false 2 2.99,3.323 3.146,3.521 0.156,0.198 10 false 2 2.99,4.188 3.146,4.385 0.156,0.198 10 false 5 3.802,4.198 4.115,4.396 0.313,0.198 10 false 10 3.802,4.969 4.115,5.167 0.313,0.198 10 false 14 3.844,5.719 4,5.917 0.156,0.198 10 false 5 3.802,6.875 4.115,7.073 0.313,0.198 10 false 12 2.958,6.875 3.271,7.073 0.313,0.198 10 false 13 2.99,5.719 3.146,5.917 0.156,0.198 10 false 4 2.99,4.958 3.146,5.156 0.156,0.198 10 false 3 1.042,7.688 3.333,7.885 2.292,0.198 10 false Steering Sensor 3,7.688 4,8.229 1,0.542 10 false Steering Wheel Switch Housing 5.031,7.677 6.5,7.958 1.469,0.281 10 false Turn Signal Switch 4.563,1.146 5.177,1.344 0.615,0.198 10 false OFF* 0.219,8.24 3.198,8.531 2.979,0.292 10 false *: w/ Light Control Switch OFF Position


for RH Side Type


E406759E10
0.313,4.635 0.625,4.833 0.313,0.198 10 false IC 1.188,1.708 1.646,1.906 0.458,0.198 10 false 5 V 2.719,0.323 3.333,0.521 0.615,0.198 10 false HEAD 3.281,0.448 3.74,0.646 0.458,0.198 10 false N3 3.313,0.24 3.469,0.438 0.156,0.198 10 false 7 5.042,0.333 5.354,0.531 0.313,0.198 10 false 16 5.656,0.156 5.969,0.354 0.313,0.198 10 false +B 5.281,0.344 5.896,0.542 0.615,0.198 10 false HEAD 2.896,3.417 3.208,3.615 0.313,0.198 10 false HU 4.458,3.417 4.771,3.615 0.313,0.198 10 false HU 5.865,2.021 6.177,2.219 0.313,0.198 10 false HU 6.229,2.021 6.542,2.219 0.313,0.198 10 false HF 2.917,4.073 3.229,4.271 0.313,0.198 10 false HF 4.458,4.073 4.771,4.271 0.313,0.198 10 false HF 6.583,2.021 6.896,2.219 0.313,0.198 10 false EL 3.281,6.479 3.594,6.677 0.313,0.198 10 false z7 3.271,3.531 3.583,3.729 0.313,0.198 10 false z7 3.281,4.177 3.594,4.375 0.313,0.198 10 false z7 3.271,5.823 3.583,6.021 0.313,0.198 10 false z7 3.302,3.333 3.458,3.531 0.156,0.198 10 false 6 3.313,3.979 3.469,4.177 0.156,0.198 10 false 7 4.135,3.333 4.51,3.563 0.375,0.229 10 false 16 4.135,3.979 4.573,4.198 0.438,0.219 10 false 11 4.146,6.49 4.5,6.75 0.354,0.26 10 false z9 4.146,3.531 4.469,3.75 0.323,0.219 10 false z9 4.146,4.188 4.438,4.448 0.292,0.26 10 false z9 4.135,5.823 4.469,6.083 0.333,0.26 10 false z9 2.792,5.708 3.563,5.906 0.771,0.198 10 false BFG 4.552,5.698 5.323,5.896 0.771,0.198 10 false BFG 4.552,6.375 5.01,6.573 0.458,0.198 10 false B* 2.927,6.365 3.385,6.563 0.458,0.198 10 false B* 3.271,5.625 3.583,5.823 0.313,0.198 10 false 11 3.271,6.281 3.583,6.479 0.313,0.198 10 false 12 4.125,5.625 4.365,5.875 0.24,0.25 10 false 13 4.188,6.281 4.5,6.479 0.313,0.198 10 false 4 5.833,4.76 6.292,4.958 0.458,0.198 10 false BFG 6.281,4.76 6.438,4.958 0.156,0.198 10 false B 6.594,4.76 6.906,4.958 0.313,0.198 10 false EL 5.26,2.208 6.635,2.406 1.375,0.198 10 false High 5.26,2.406 6.49,2.604 1.229,0.198 10 false Low 5.219,2.615 6.292,2.813 1.073,0.198 10 false Flash 4.74,2.813 6.729,3.01 1.99,0.198 10 false Dimmer Switch 5.292,4.958 5.75,5.156 0.458,0.198 10 false OFF 5.302,5.156 5.917,5.354 0.615,0.198 10 false Fr 5.156,5.354 6.229,5.552 1.073,0.198 10 false Fr&Rr* 4.917,5.573 6,5.771 1.083,0.198 10 false Fog Light Switch 4.958,0.823 5.417,1.021 0.458,0.198 10 false N19 4.938,0.99 6.604,2.052 1.667,1.063 10 false Main Body ECU (Multiplex Network Body ECU) 1.25,7.542 3.542,7.74 2.292,0.198 10 false Steering Sensor 3.323,7.469 4.313,8.021 0.99,0.552 10 false Steering Wheel Switch Housing 5.26,7.531 6.844,7.927 1.583,0.396 10 false Turn Signal Switch 0.219,8.354 3.583,8.552 3.365,0.198 10 false *: w/ Rear Fog Light

E406760E12
0.323,4.094 0.635,4.292 0.313,0.198 10 false IC 2.344,3.427 3.115,3.625 0.771,0.198 10 false L_OFF* 2.677,4.292 2.833,4.49 0.156,0.198 10 false A 4.229,4.302 4.385,4.5 0.156,0.198 10 false A 4.229,3.427 5,3.625 0.771,0.198 10 false L_OFF* 6.083,0.854 6.24,1.052 0.156,0.198 10 false T 2.677,5.063 2.833,5.26 0.156,0.198 10 false T 4.24,5.052 4.396,5.25 0.156,0.198 10 false T 5.771,0.844 5.927,1.042 0.156,0.198 10 false A 5.188,0.833 5.958,1.031 0.771,0.198 10 false L_OFF 6.396,0.844 6.552,1.042 0.156,0.198 10 false H 4.24,5.813 4.396,6.01 0.156,0.198 10 false H 2.677,5.813 2.833,6.01 0.156,0.198 10 false H 6.698,0.844 7.01,1.042 0.313,0.198 10 false EL 4.542,1.74 5.156,1.938 0.615,0.198 10 false AUTO 4.615,2.24 5.229,2.438 0.615,0.198 10 false TAIL 4.552,2.656 5.167,2.854 0.615,0.198 10 false HEAD 4.365,2.844 5.188,3.542 0.823,0.698 10 false Light Control Switch 3.823,3.542 4.135,3.771 0.313,0.229 10 false z9 3.823,4.406 4.135,4.677 0.313,0.271 10 false z9 3.823,5.177 4.219,5.417 0.396,0.24 10 false z9 3.823,5.927 4.26,6.25 0.438,0.323 10 false z9 3.813,7.094 4.177,7.354 0.365,0.26 10 false z9 2.958,7.083 3.271,7.281 0.313,0.198 10 false z7 2.948,3.542 3.26,3.74 0.313,0.198 10 false z7 2.958,4.406 3.271,4.604 0.313,0.198 10 false z7 2.969,5.167 3.281,5.365 0.313,0.198 10 false z7 2.958,5.927 3.271,6.125 0.313,0.198 10 false z7 4.25,6.969 4.563,7.167 0.313,0.198 10 false EL 2.604,6.979 2.917,7.177 0.313,0.198 10 false EL 3.823,3.333 4.125,3.521 0.302,0.188 10 false 15 2.99,3.323 3.146,3.521 0.156,0.198 10 false 2 2.99,4.188 3.146,4.385 0.156,0.198 10 false 5 3.854,4.198 4.167,4.396 0.313,0.198 10 false 7 3.854,4.969 4.167,5.167 0.313,0.198 10 false 3 3.813,5.719 4.146,5.917 0.333,0.198 10 false 12 3.865,6.875 4.177,7.073 0.313,0.198 10 false 5 2.958,6.875 3.271,7.073 0.313,0.198 10 false 13 2.99,5.719 3.146,5.917 0.156,0.198 10 false 4 2.99,4.958 3.146,5.156 0.156,0.198 10 false 3 1.042,7.688 3.333,7.885 2.292,0.198 10 false Steering Sensor 3,7.688 4,8.229 1,0.542 10 false Steering Wheel Switch Housing 5.031,7.677 6.5,7.958 1.469,0.281 10 false Turn Signal Switch 4.563,1.146 5.177,1.344 0.615,0.198 10 false OFF* 0.219,8.24 3.198,8.531 2.979,0.292 10 false *: w/ Light Control Switch OFF Position


CAUTION / NOTICE / HINT

NOTICE:

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


PROCEDURE

1.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus: Chassis / Steering Angle Sensor / Data List.


e.

Read the Data List according to the display on the GTS.

Chassis > Steering Angle Sensor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Light OFF Switch Light control switch OFF position signal*1 OFF or ON OFF: Light control switch not in OFF position
ON: Light control switch in OFF position 		-
Auto Light Switch Light control switch AUTO position signal OFF or ON OFF: Light control switch not in AUTO position
ON: Light control switch in AUTO position 		-
Head Light Switch (Tail) Light control switch TAIL position signal OFF or ON OFF: Light control switch not in TAIL position
ON: Light control switch in TAIL position 		-
Head Light Switch (Head) Light control switch HEAD position signal OFF or ON OFF: Light control switch not in HEAD position
ON: Light control switch in HEAD position 		-
High Beam Main Switch Dimmer switch High position signal OFF or ON OFF: Dimmer switch not in High position
ON: Dimmer switch in High position 		-
Passing Light Switch Dimmer switch Flash position signal OFF or ON OFF: Dimmer switch not in Flash position
ON: Dimmer switch in Flash position 		-
Front Fog Light Switch Front fog light switch signal OFF or ON OFF: Fog light switch in OFF position
ON: Fog light switch in Fr position 		-
Rear Fog Light/Bad Weather Switch Rear fog light switch signal*2 OFF or ON OFF: Fog light switch in OFF position
ON: Fog light switch in Fr&Rr position 		-

*1: w/ Light Control Switch OFF Position

*2: w/ Rear Fog Light


Chassis > Steering Angle Sensor > Data List
Tester Display
Light OFF Switch
Auto Light Switch
Head Light Switch (Tail)
Head Light Switch (Head)
High Beam Main Switch
Passing Light Switch
Front Fog Light Switch
Rear Fog Light/Bad Weather Switch
50003 417 1,2,3,4,5,6,11,12
OK:

Normal conditions listed above are displayed.



Result:
Proceed to
OK
NG



OK

2.READ VALUE USING GTS

NG

7.INSPECT TURN SIGNAL SWITCH
2.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the engine switch on (IG).


c.

Turn the GTS on.


d.

Enter the following menus:

i.

Chassis / Steering Angle Sensor / Data List.


ii.

Body Electrical / Main Body / Data List.



e.

Read the Data List according to the display on the GTS.

Chassis > Steering Angle Sensor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Head Light Switch (Head) Light control switch HEAD position signal OFF or ON OFF: Light control switch not in HEAD position
ON: Light control switch in HEAD position 		-
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Head Light SW (Head) Light control switch HEAD position signal OFF or ON OFF: Light control switch not in HEAD position
ON: Light control switch in HEAD position 		-
Chassis > Steering Angle Sensor > Data List
Tester Display
Head Light Switch (Head)
50003 417 4
Body Electrical > Main Body > Data List
Tester Display
Head Light SW (Head)
50003 123 59
OK:

Normal conditions listed above are displayed.



Result:
Result Proceed to
OK A
NG ("Steering Angle Sensor" side abnormality) B
NG ("Main Body" side abnormality) C
NG ("Steering Angle Sensor" and "Main Body" are abnormality) D



A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE


B

REPLACE STEERING SENSOR

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>STEERING ANGLE SENSOR (w/ VSC)>REMOVAL


C

3.CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

D

4.INSPECT TURN SIGNAL SWITCH
3.CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the N19 main body ECU (multiplex network body ECU) connector.


b.

Disconnect the N3 steering sensor connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N3-7 (HEAD) - N19-16 (HEAD) Always Below 1 Ω
N3-7 (HEAD) or N19-16 (HEAD) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

for LHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for LHD)>REMOVAL

for RHD:

Click herePower Source / Network>POWER DISTRIBUTION>MAIN BODY ECU (for RHD)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT TURN SIGNAL SWITCH
a.

Remove the turn signal switch.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT DIMMER SWITCH>REMOVAL


b.

Inspect the turn signal switch.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT DIMMER SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

5.INSPECT STEERING WHEEL SWITCH HOUSING

NG

REPLACE TURN SIGNAL SWITCH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT DIMMER SWITCH>REMOVAL


5.INSPECT STEERING WHEEL SWITCH HOUSING
a.

Remove the steering wheel switch housing.

Click hereVehicle Exterior>LIGHTING (EXT)>SWITCH HOUSING>REMOVAL


b.

Inspect the steering wheel switch housing.

Click hereVehicle Exterior>LIGHTING (EXT)>SWITCH HOUSING>INSPECTION


Result:
Proceed to
OK
NG



OK

6.CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))

NG

REPLACE STEERING WHEEL SWITCH HOUSING

Click hereVehicle Exterior>LIGHTING (EXT)>SWITCH HOUSING>REMOVAL


6.CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
a.

Disconnect the N19 main body ECU (multiplex network body ECU) connector.


b.

Disconnect the N3 steering sensor connector.


c.

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

Standard Resistance:
Tester Connection Condition Specified Condition
N3-7 (HEAD) or N19-16 (HEAD) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE STEERING SENSOR

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>STEERING ANGLE SENSOR (w/ VSC)>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.INSPECT TURN SIGNAL SWITCH
a.

Remove the turn signal switch.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT DIMMER SWITCH>REMOVAL


b.

Inspect the turn signal switch.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT DIMMER SWITCH>INSPECTION


Result:
Proceed to
OK
NG



OK

8.INSPECT STEERING WHEEL SWITCH HOUSING

NG

REPLACE TURN SIGNAL SWITCH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT DIMMER SWITCH>REMOVAL