Daytime Running Light Circuit [09/2016 - ]: Procedure

1. Check the operation of the low beam headlights.

   OK

   The low beam headlights operate normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2016 - ] 

Result: 

OK 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
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
   Daytime Running Light	Daytime running lights	OFF or ON	-

   Body Electrical > HL AutoLeveling > Active Test 

   Tester Display
   Daytime Running Light

   OK

   Daytime running lights illuminate.

   Result

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

Result: 

A 

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2016 - ] 

Result: 

B 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [09/2016 - ] 

Result: 

C 

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to  REMOVAL [09/2016 - ]