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

LIGHTING (EXT)  LIGHTING SYSTEM(w/ Headlight ECU)  Headlight Beam Level Control Actuator Circuit  


DESCRIPTION

The headlight ECU sub-assemblies operate the headlight leveling motors according to the vehicle conditions.

WIRING DIAGRAM

E380631E16
1.188,7.479 3.01,7.74 1.823,0.26 10 false : CAN Communication Line 0.771,3.406 2.917,3.667 2.146,0.26 10 false Headlight ECU Sub-assembly LH 0.771,3.26 1.01,3.521 0.24,0.26 10 false B 0.74,7.031 2.885,7.292 2.146,0.26 10 false Headlight ECU Sub-assembly RH 0.75,6.885 0.99,7.146 0.24,0.26 10 false B 1.833,1.146 2.365,1.438 0.531,0.292 10 false ACTBI 1.833,1.417 2.365,1.708 0.531,0.292 10 false ACTSI 1.833,1.688 2.365,1.979 0.531,0.292 10 false ACTGI 1.833,4.781 2.365,5.073 0.531,0.292 10 false ACTBI 1.833,5.052 2.365,5.344 0.531,0.292 10 false ACTSI 1.833,5.302 2.365,5.594 0.531,0.292 10 false ACTGI 2.385,1.052 2.521,1.313 0.135,0.26 10 false 9 2.385,1.302 2.521,1.563 0.135,0.26 10 false 8 2.344,1.583 2.604,1.865 0.26,0.281 10 false 17 2.354,5.198 2.615,5.479 0.26,0.281 10 false 17 2.385,4.927 2.521,5.188 0.135,0.26 10 false 8 2.385,4.646 2.521,4.906 0.135,0.26 10 false 9 4.49,1.042 4.625,1.302 0.135,0.26 10 false 3 4.49,1.313 4.625,1.573 0.135,0.26 10 false 2 4.49,1.583 4.625,1.844 0.135,0.26 10 false 1 4.458,1.938 4.594,2.198 0.135,0.26 10 false E 4.448,2.083 6.594,2.344 2.146,0.26 10 false Headlight Leveling Motor LH 3.51,3.063 5.656,3.323 2.146,0.26 10 false Headlight Unit Assembly LH 3.438,6.677 5.583,6.938 2.146,0.26 10 false Headlight Unit Assembly RH 4.417,5.688 6.563,5.948 2.146,0.26 10 false Headlight Leveling Motor RH 4.427,5.542 4.563,5.802 0.135,0.26 10 false E 4.49,4.667 4.625,4.927 0.135,0.26 10 false 3 4.5,4.948 4.635,5.208 0.135,0.26 10 false 2 4.5,5.198 4.635,5.458 0.135,0.26 10 false 1

CAUTION / NOTICE / HINT

NOTICE:
·

If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>INITIALIZATION

·

When replacing the headlight ECU sub-assembly LH, always replace it with a new one. If a headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.



PROCEDURE

1.PERFORM ACTIVE TEST USING GTS
a.

Connect the GTS to the DLC3.


b.

Start the engine.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.


e.

Perform the Active Test according to the display on the GTS.

Body Electrical > HL AutoLeveling > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Drive The Leveling Motor Headlight leveling motor upward or downward operation Stop, Down or Up Perform the Active Test with the engine started and vehicle stopped
Body Electrical > HL AutoLeveling > Active Test
Tester Display
Drive The Leveling Motor
50004 361 3
OK:

Headlight leveling motors operate normally.



Result:
Result Proceed to
OK A
NG (for LH Side) B
NG (for RH Side) C



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

2.CHECK HEADLIGHT UNIT ASSEMBLY LH

C

5.CHECK HEADLIGHT UNIT ASSEMBLY RH
2.CHECK HEADLIGHT UNIT ASSEMBLY LH
a.

Interchange the headlight unit assembly LH with RH and connect the connectors.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


Result:
Proceed to
NEXT



NEXT

3.CHECK OPERATION (AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM)
3.CHECK OPERATION (AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM)
a.

Check the operation of headlight leveling motor.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>OPERATION CHECK


Result:
Result Proceed to
LH side headlight leveling motor do not operate normally. A
RH side headlight leveling motor do not operate normally. B



A

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ECU>REMOVAL


B

4.INSPECT HEADLIGHT UNIT ASSEMBLY LH
4.INSPECT HEADLIGHT UNIT ASSEMBLY LH
E419173C01
1.729,0.573 2.094,0.813 0.365,0.24 4.844,0.677 5.208,0.917 0.365,0.24 2.76,2.042 2.333,1.438 true 1.875,2.031 2.083,1.635 true 2.25,2 2.198,1.458 true 0.927,0.604 1.24,0.802 0.313,0.198 10 false *a 4.354,0.698 4.667,0.896 0.313,0.198 10 false *b 1.854,0.625 2.167,0.823 0.313,0.198 10 false B 1.573,2.042 2.448,2.26 0.875,0.219 10 false ACTGI 2.198,2.052 2.708,2.302 0.51,0.25 10 false ACTSI 4.979,0.719 5.292,0.917 0.313,0.198 10 false E 2.771,2.031 3.646,2.25 0.875,0.219 10 false ACTBI
*a Component without harness connected
(to Headlight ECU Sub-assembly LH) 		*b Component without harness connected
(to Headlight Unit Assembly LH)


a.

Remove the headlight assembly LH.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>REMOVAL


b.

Remove the headlight unit assembly LH.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


c.

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

Standard Resistance:
Tester Connection Wiring Color Condition Specified Condition
B-9 (ACTBI) - E-3 W-L Always Below 1 Ω
B-8 (ACTSI) - E-2 W-BR Always Below 1 Ω
B-17 (ACTGI) - E-1 W-G Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT LEVELING MOTOR LH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


NG

REPLACE HEADLIGHT UNIT ASSEMBLY LH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


5.CHECK HEADLIGHT UNIT ASSEMBLY RH
a.

Interchange the headlight unit assembly RH with LH and connect the connectors.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


Result:
Proceed to
NEXT



NEXT

6.CHECK OPERATION (AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM)
6.CHECK OPERATION (AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM)
a.

Check the operation of headlight leveling motor.

Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>OPERATION CHECK


Result:
Result Proceed to
RH side headlight leveling motor do not operate normally. A
LH side headlight leveling motor do not operate normally. B



A

REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ECU>REMOVAL


B

7.INSPECT HEADLIGHT UNIT ASSEMBLY RH
7.INSPECT HEADLIGHT UNIT ASSEMBLY RH
E419173C01
1.729,0.573 2.094,0.813 0.365,0.24 4.844,0.677 5.208,0.917 0.365,0.24 2.76,2.042 2.333,1.438 true 1.875,2.031 2.083,1.635 true 2.25,2 2.198,1.458 true 0.927,0.604 1.24,0.802 0.313,0.198 10 false *a 4.354,0.698 4.667,0.896 0.313,0.198 10 false *b 1.854,0.625 2.167,0.823 0.313,0.198 10 false B 1.573,2.042 2.448,2.26 0.875,0.219 10 false ACTGI 2.198,2.052 2.708,2.302 0.51,0.25 10 false ACTSI 4.979,0.719 5.292,0.917 0.313,0.198 10 false E 2.771,2.031 3.646,2.25 0.875,0.219 10 false ACTBI
*a Component without harness connected
(to Headlight ECU Sub-assembly RH) 		*b Component without harness connected
(to Headlight Unit Assembly RH)


a.

Remove the headlight assembly RH.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>REMOVAL


b.

Remove the headlight unit assembly RH.

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


c.

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

Standard Resistance:
Tester Connection Wiring Color Condition Specified Condition
B-9 (ACTBI) - E-3 W-L Always Below 1 Ω
B-8 (ACTSI) - E-2 W-BR Always Below 1 Ω
B-17 (ACTGI) - E-1 W-G Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE HEADLIGHT LEVELING MOTOR RH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY


NG

REPLACE HEADLIGHT UNIT ASSEMBLY RH

Click hereVehicle Exterior>LIGHTING (EXT)>HEADLIGHT ASSEMBLY (for LED Headlight)>DISASSEMBLY