Front Side Marker Light Circuit [10/2018 - ]: Procedure

1. Choose the model to be inspected.

   Result

   Result	Proceed to
   for Triple Beam Headlight	A
   for Single Beam Headlight with Automatic Headlight Beam Level Control System	B

Result: 

B 

See step  5

Result: 

A 

See step  2

1. Check the illumination of each front side marker lights.

   Result

   Result	Proceed to
   Left side front side marker light does not illuminate	A
   Right side front side marker light does not illuminate	B

Result: 

B 

See step  4

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / AFS / Active Test.
5. Perform the Active Test according to the display on the Techstream.

   Body Electrical > AFS > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Clearance Light	Parking lights	OFF or ON	-

   Body Electrical > AFS > Active Test 

   Tester Display
   Clearance Light

   OK

   Front side marker light illuminates.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 10/2019]  Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2020]  Refer to  PROBLEM SYMPTOMS TABLE [10/2020 - 07/2022]  Refer to  PROBLEM SYMPTOMS TABLE [07/2022 - ] 

Result: 

NG 

See step  7

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / AFS (Sub) / Active Test.
5. Perform the Active Test according to the display on the Techstream.

   Body Electrical > AFS (Sub) > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Clearance Light	Parking lights	OFF or ON	-

   Body Electrical > AFS (Sub) > Active Test 

   Tester Display
   Clearance Light

   OK

   Front side marker light illuminates.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 10/2019]  Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2020]  Refer to  PROBLEM SYMPTOMS TABLE [10/2020 - 07/2022]  Refer to  PROBLEM SYMPTOMS TABLE [07/2022 - ] 

Result: 

NG 

See step  10

1. Check the illumination of each front side marker lights.

   Result

   Result	Proceed to
   Left side front side marker light does not illuminate	A
   Right side front side marker light does not illuminate	B

Result: 

B 

See step  9

Result: 

A 

See step  6

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.
5. Perform the Active Test according to the display on the Techstream.

   Body Electrical > HL AutoLeveling > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Clearance Light	Parking lights	OFF or ON	-

   Body Electrical > HL AutoLeveling > Active Test 

   Tester Display
   Clearance Light

   OK

   Front side marker light illuminates.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 10/2019]  Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2020]  Refer to  PROBLEM SYMPTOMS TABLE [10/2020 - 07/2022]  Refer to  PROBLEM SYMPTOMS TABLE [07/2022 - ] 

Result: 

NG 

See step  7

1. Interchange the headlight unit LH with RH and connect the connectors.
   • for Triple Beam Headlight

     Refer to DISASSEMBLY [10/2018 - ]

   • for Single Beam Headlight

     Refer to DISASSEMBLY [10/2018 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

1. Check that the front side marker light operates normally.

   OK

   Front side marker light operates normally.

   Result

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

Result: 

A 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [10/2018 - ] 

Result: 

B 

REPLACE HEADLIGHT UNIT LH. Refer to  DISASSEMBLY [10/2018 - ] 

Result: 

C 

REPLACE HEADLIGHT UNIT LH. Refer to  DISASSEMBLY [10/2018 - ] 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test.
5. Perform the Active Test according to the display on the Techstream.

   Body Electrical > HL AutoLeveling (Sub) > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Clearance Light	Parking lights	OFF or ON	-

   Body Electrical > HL AutoLeveling (Sub) > Active Test 

   Tester Display
   Clearance Light

   OK

   Front side marker light illuminates.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2018 - 10/2019]  Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2020]  Refer to  PROBLEM SYMPTOMS TABLE [10/2020 - 07/2022]  Refer to  PROBLEM SYMPTOMS TABLE [07/2022 - ] 

Result: 

NG 

See step  10

1. Interchange the headlight unit RH with LH and connect the connectors.
   • for Triple Beam Headlight

     Refer to DISASSEMBLY [10/2018 - ]

   • for Single Beam Headlight

     Refer to DISASSEMBLY [10/2018 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. Check that the front side marker light operates normally.

   OK

   Front side marker light operates normally.

   Result

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

Result: 

A 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to  REMOVAL [10/2018 - ] 

Result: 

B 

REPLACE HEADLIGHT UNIT RH. Refer to  DISASSEMBLY [10/2018 - ] 

Result: 

C 

REPLACE HEADLIGHT UNIT RH. Refer to  DISASSEMBLY [10/2018 - ]