High Beam Headlight Circuit [03/2017 - ]: Procedure

1. Check the illumination of each high beam lights.

   Result

   Result	Proceed to
   LH side high beam light does not illuminate.	A
   RH side high beam light does not illuminate.	B

Result: 

B 

See step  4

Result: 

A 

See step  2

1. Perform the Active Test according to the display on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020] , or refer to DATA LIST / ACTIVE TEST [04/2020 - 05/2023] , or refer to DATA LIST / ACTIVE TEST [05/2023 - ]

   Body Electrical > HL AutoLeveling > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Headlight High Beam	High beam headlights	OFF or ON	Light control switch in Head position.

   Body Electrical > HL AutoLeveling > Active Test 

   Tester Display
   Headlight High Beam

   OK

   High beam headlights turns on.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - 05/2023]  , or refer to  PROBLEM SYMPTOMS TABLE [05/2023 - ] 

Result: 

NG 

See step  3

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

   Refer to REMOVAL [03/2017 - 05/2023] , or refer to REMOVAL [05/2023 - ]

2. Check that the high beam light LH operate normally.

   Refer to OPERATION CHECK [03/2017 - 04/2020] , or refer to OPERATION CHECK [04/2020 - 05/2023] , or refer to OPERATION CHECK [05/2023 - ]

   OK

   High beam light LH operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to  DISASSEMBLY [03/2017 - ] 

Result: 

NG 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [03/2017 - 05/2023]  , or refer to  REMOVAL [05/2023 - ] 

1. Perform the Active Test according to the display on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020] , or refer to DATA LIST / ACTIVE TEST [04/2020 - 05/2023] , or refer to DATA LIST / ACTIVE TEST [05/2023 - ]

   Body Electrical > HL AutoLeveling (Sub) > Active Test 

   Tester Display	Measurement Item	Control Range	Diagnostic Note
   Headlight High Beam	High beam headlights	OFF or ON	Light control switch in Head position.

   Body Electrical > HL AutoLeveling (Sub) > Active Test 

   Tester Display
   Headlight High Beam

   OK

   High beam headlights turns on.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [03/2017 - 05/2023]  , or refer to  PROBLEM SYMPTOMS TABLE [05/2023 - ] 

Result: 

NG 

See step  5

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

   Refer to REMOVAL [03/2017 - 05/2023] , or refer to REMOVAL [05/2023 - ]

2. Check that the high beam light RH operate normally.

   Refer to OPERATION CHECK [03/2017 - 04/2020] , or refer to OPERATION CHECK [04/2020 - 05/2023] , or refer to OPERATION CHECK [05/2023 - ]

   OK

   High beam light RH operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to  DISASSEMBLY [03/2017 - ] 

Result: 

NG 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to  REMOVAL [03/2017 - 05/2023]  , or refer to  REMOVAL [05/2023 - ]