High Beam Headlight Circuit [11/2023 - ]: Procedure

1. Check the illumination of each high beam light.

   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  5

Result: 

A 

See step  2

1. 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

   OK

   High beam headlights turn on.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2023 - ] 

Result: 

NG 

See step  3

1. Remove each headlight ECU sub-assembly, interchange the headlight assembly LH with RH and connect the connectors.

   Refer to DISASSEMBLY [12/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Check that the high beam headlight operates normally.

   OK

   High beam headlight operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPLACE HEADLIGHT ASSEMBLY LH. Refer to  REMOVAL [11/2023 - ] 

1. 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

   OK

   High beam headlights turn on.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [11/2023 - ] 

Result: 

NG 

See step  6

1. Remove each headlight ECU sub-assembly, interchange the headlight assembly RH with LH and connect the connectors.

   Refer to DISASSEMBLY [12/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Check that the high beam headlight operates normally.

   OK

   High beam headlight operates normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to  REMOVAL [11/2023 - ] 

Result: 

NG 

REPLACE HEADLIGHT ASSEMBLY RH. Refer to  REMOVAL [11/2023 - ]