Clearance Light/Daytime Running Light Circuit [11/2018 - 08/2020]: Procedure
- CONFIRM MODEL
- Choose the model to be inspected.
Result
Result Proceed to for Triple Beam Headlight A for Single Beam Headlight B
Result:
B
See step 23
Result:
A
See step 2
- Choose the model to be inspected.
- CHECK LIGHTS
- Check the illumination of each clearance lights and daytime running lights.
Result
Result Proceed to LH side daytime running light does not operate properly (clearance light operates normally) A LH side clearance light does not operate properly (daytime running light operates normally) B RH side daytime running light does not operate properly (clearance light operates normally) C RH side clearance light does not operate properly (daytime running light operates normally) D
Result:
B
See step 7
Result:
C
See step 13
Result:
D
See step 17
Result:
A
See step 3
- Check the illumination of each clearance lights and daytime running lights.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.
- 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 light illuminates.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]
Result:
NG
See step 4
- CHECK HEADLIGHT UNIT ASSEMBLY LH
- Interchange the headlight unit assembly LH with RH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 5
- Interchange the headlight unit assembly LH with RH and connect the connectors.
- CHECK OPERATION (DAYTIME RUNNING LIGHT)
- Check the operation of the daytime running light.
Result
Result Proceed to LH side daytime running light does not illuminate. A RH side daytime running light does not illuminate. B
Result:
A
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
Result:
B
See step 6
- Check the operation of the daytime running light.
- INSPECT HEADLIGHT UNIT ASSEMBLY LH
*a Component without harness connected
(to Headlight ECU Sub-assembly LH)*b Component without harness connected
(to Headlight Lens Sub-assembly LH)- Remove the headlight assembly LH.
Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 08/2020]
- Remove the headlight lens sub-assembly LH.
Refer to DISASSEMBLY [11/2018 - 08/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Wiring Color Condition Specified Condition B-10 (DRL+) - E-2 R-W Always Below 1 Ω B-1 (DRL-) - E-1 G-W Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE HEADLIGHT LENS SUB-ASSEMBLY LH. Refer to DISASSEMBLY [11/2018 - 08/2020]
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to DISASSEMBLY [11/2018 - 08/2020]
- Remove the headlight assembly LH.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.
- 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 Clearance lights OFF or ON - Body Electrical > HL AutoLeveling > Active Test
Tester Display Clearance Light OK
Clearance light illuminates.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]
Result:
NG
See step 8
- CHECK HEADLIGHT BRACKET LH
- Interchange the headlight bracket LH with RH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 9
- Interchange the headlight bracket LH with RH and connect the connectors.
- CHECK OPERATION (CLEARANCE LIGHT)
- Check the operation of the clearance light.
Result
Result Proceed to LH side clearance light does not illuminate. A RH side clearance light does not illuminate. B
Result:
B
REPLACE HEADLIGHT BRACKET LH. Refer to DISASSEMBLY [11/2018 - 08/2020]
Result:
A
See step 10
- Check the operation of the clearance light.
- CHECK HEADLIGHT UNIT ASSEMBLY LH
- Interchange the headlight unit assembly LH with RH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 11
- Interchange the headlight unit assembly LH with RH and connect the connectors.
- CHECK OPERATION (CLEARANCE LIGHT)
- Check the operation of the clearance light.
Result
Result Proceed to LH side clearance light does not illuminate. A RH side clearance light does not illuminate. B
Result:
A
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
Result:
B
See step 12
- Check the operation of the clearance light.
- INSPECT HEADLIGHT UNIT ASSEMBLY LH
*a Component without harness connected
(to Headlight ECU Sub-assembly LH)*b Component without harness connected
(to Headlight Bracket LH)- Remove the headlight assembly LH.
Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 08/2020]
- Remove the headlight bracket LH.
Refer to DISASSEMBLY [11/2018 - 08/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Wiring Color Condition Specified Condition B-19 (CLL+) - F-2 R Always Below 1 Ω B-2 (CLL-) - F-1 GR Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE HEADLIGHT LENS SUB-ASSEMBLY LH. Refer to DISASSEMBLY [11/2018 - 08/2020]
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to DISASSEMBLY [11/2018 - 08/2020]
- Remove the headlight assembly LH.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test.
- 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 Daytime Running Light Daytime running lights OFF or ON - Body Electrical > HL AutoLeveling (Sub) > Active Test
Tester Display Daytime Running Light OK
Daytime running light illuminates.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]
Result:
NG
See step 14
- CHECK HEADLIGHT UNIT ASSEMBLY RH
- Interchange the headlight unit assembly RH with LH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 15
- Interchange the headlight unit assembly RH with LH and connect the connectors.
- CHECK OPERATION (DAYTIME RUNNING LIGHT)
- Check the operation of the daytime running light.
Result
Result Proceed to RH side daytime running light does not illuminate. A LH side daytime running light does not illuminate. B
Result:
A
REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
Result:
B
See step 16
- Check the operation of the daytime running light.
- INSPECT HEADLIGHT UNIT ASSEMBLY RH
*a Component without harness connected
(to Headlight ECU Sub-assembly RH)*b Component without harness connected
(to Headlight Lens Sub-assembly RH)- Remove the headlight assembly RH.
Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 08/2020]
- Remove the headlight lens sub-assembly RH.
Refer to DISASSEMBLY [11/2018 - 08/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Wiring Color Condition Specified Condition B-10 (DRL+) - E-2 R-W Always Below 1 Ω B-1 (DRL-) - E-1 G-W Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE HEADLIGHT LENS SUB-ASSEMBLY RH. Refer to DISASSEMBLY [11/2018 - 08/2020]
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to DISASSEMBLY [11/2018 - 08/2020]
- Remove the headlight assembly RH.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test.
- 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 Clearance lights OFF or ON - Body Electrical > HL AutoLeveling (Sub) > Active Test
Tester Display Clearance Light OK
Clearance light illuminates.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]
Result:
NG
See step 18
- CHECK HEADLIGHT BRACKET RH
- Interchange the headlight bracket RH with LH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 19
- Interchange the headlight bracket RH with LH and connect the connectors.
- CHECK OPERATION (CLEARANCE LIGHT)
- Check the operation of the clearance light.
Result
Result Proceed to RH side clearance light does not illuminate. A LH side clearance light does not illuminate. B
Result:
B
REPLACE HEADLIGHT BRACKET RH. Refer to DISASSEMBLY [11/2018 - 08/2020]
Result:
A
See step 20
- Check the operation of the clearance light.
- CHECK HEADLIGHT UNIT ASSEMBLY RH
- Interchange the headlight unit assembly RH with LH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 21
- Interchange the headlight unit assembly RH with LH and connect the connectors.
- CHECK OPERATION (CLEARANCE LIGHT)
- Check the operation of the clearance light.
Result
Result Proceed to RH side clearance light does not illuminate. A LH side clearance light does not illuminate. B
Result:
A
REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
Result:
B
See step 22
- Check the operation of the clearance light.
- INSPECT HEADLIGHT UNIT ASSEMBLY RH
*a Component without harness connected
(to Headlight ECU Sub-assembly RH)*b Component without harness connected
(to Headlight Bracket RH)- Remove the headlight assembly RH.
Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 08/2020]
- Remove the headlight bracket RH.
Refer to DISASSEMBLY [11/2018 - 08/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Wiring Color Condition Specified Condition B-19 (CLL+) - F-2 R Always Below 1 Ω B-2 (CLL-) - F-1 GR Always Below 1 Ω Result
Proceed to OK NG
Result:
OK
REPLACE HEADLIGHT LENS SUB-ASSEMBLY RH. Refer to DISASSEMBLY [11/2018 - 08/2020]
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to DISASSEMBLY [11/2018 - 08/2020]
- Remove the headlight assembly RH.
- CHECK LIGHTS
- Check the illumination of each clearance lights and daytime running lights.
Result
Result Proceed to LH side clearance lights and daytime running lights do not illuminate A RH side clearance lights and daytime running lights do not illuminate B
Result:
B
See step 29
Result:
A
See step 24
- Check the illumination of each clearance lights and daytime running lights.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / HL AutoLeveling / Active Test.
- 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 Clearance lights OFF or ON - Daytime Running Light Daytime running lights OFF or ON - Body Electrical > HL AutoLeveling > Active Test
Tester Display Clearance Light Body Electrical > HL AutoLeveling > Active Test
Tester Display Daytime Running Light OK
Clearance lights and daytime running lights illuminate.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]
Result:
NG
See step 25
- CHECK HEADLIGHT UNIT ASSEMBLY LH
- Interchange the headlight unit assembly LH with RH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 26
- Interchange the headlight unit assembly LH with RH and connect the connectors.
- CHECK OPERATION (CLEARANCE LIGHTS AND DAYTIME RUNNING LIGHTS)
- Check the operation of the clearance lights and daytime running lights.
Result
Result Proceed to LH side clearance lights and daytime running lights do not illuminate. A RH side clearance lights and daytime running lights do not illuminate. B
Result:
A
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
Result:
B
See step 27
- Check the operation of the clearance lights and daytime running lights.
- INSPECT HEADLIGHT UNIT ASSEMBLY LH
*a Component without harness connected
(to Headlight ECU Sub-assembly LH)*b Component without harness connected
(to Electronic Light Source Control Gear LH)*c Component without harness connected
(to Headlight Lens Sub-assembly LH)- - - Remove the headlight assembly LH.
Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
- Remove the headlight lens sub-assembly LH.
Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Wiring Color Condition Specified Condition B-10 (DRL/CLL+) - D-1 R Always Below 1 Ω B-19 (CLL+) - D-2 G-W Always Below 1 Ω B-1 (DRL/CLL-) - D-3 GR Always Below 1 Ω D-8 - E-1 BR Always Below 1 Ω D-7 - E-2 G Always Below 1 Ω D-6 - E-3 R-W Always Below 1 Ω D-5 - E-4 W Always Below 1 Ω Result
Proceed to OK NG
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
Result:
OK
See step 28
- Remove the headlight assembly LH.
- CHECK HEADLIGHT LENS SUB-ASSEMBLY LH
- Temporarily replace the headlight lens sub-assembly LH with a new one or normally functioning one.
Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
- Check the operation of the clearance lights.
- Turn the ignition switch to ON.
- Turn the light control switch to the AUTO or TAIL position.
- Check the operation of the clearance lights and daytime running lights.
Refer to OPERATION CHECK [11/2018 - 08/2020]
OK
Clearance lights and daytime running lights operate normally.
Result
Proceed to OK NG
Result:
OK
END (HEADLIGHT LENS SUB-ASSEMBLY LH IS DEFECTIVE)
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
- Temporarily replace the headlight lens sub-assembly LH with a new one or normally functioning one.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Body Electrical / HL AutoLeveling (Sub) / Active Test.
- 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 Clearance lights OFF or ON - Daytime Running Light Daytime running lights OFF or ON - Body Electrical > HL AutoLeveling (Sub) > Active Test
Tester Display Clearance Light Body Electrical > HL AutoLeveling (Sub) > Active Test
Tester Display Daytime Running Light OK
Clearance lights and daytime running lights illuminate.
Result
Proceed to OK NG
Result:
OK
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [11/2018 - 08/2020]
Result:
NG
See step 30
- CHECK HEADLIGHT UNIT ASSEMBLY RH
- Interchange the headlight unit assembly RH with LH and connect the connectors.
Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
Result
Proceed to NEXT
Result:
NEXT
See step 31
- Interchange the headlight unit assembly RH with LH and connect the connectors.
- CHECK OPERATION (CLEARANCE LIGHTS AND DAYTIME RUNNING LIGHTS)
- Check the operation of the clearance lights and daytime running lights.
Result
Result Proceed to RH side clearance lights and daytime running lights do not illuminate. A LH side clearance lights and daytime running lights do not illuminate. B
Result:
A
REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
Result:
B
See step 32
- Check the operation of the clearance lights and daytime running lights.
- INSPECT HEADLIGHT UNIT ASSEMBLY RH
*a Component without harness connected
(to Headlight ECU Sub-assembly RH)*b Component without harness connected
(to Electronic Light Source Control Gear RH)*c Component without harness connected
(to Headlight Lens Sub-assembly RH)- - - Remove the headlight assembly RH.
Refer to REMOVAL [11/2018 - 02/2019] , or refer to REMOVAL [02/2019 - 12/2021]
- Remove the headlight lens sub-assembly RH.
Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Wiring Color Condition Specified Condition B-10 (DRL/CLL+) - D-1 R Always Below 1 Ω B-19 (CLL+) - D-2 G-W Always Below 1 Ω B-1 (DRL/CLL-) - D-3 GR Always Below 1 Ω D-8 - E-1 BR Always Below 1 Ω D-7 - E-2 G Always Below 1 Ω D-6 - E-3 R-W Always Below 1 Ω D-5 - E-4 W Always Below 1 Ω Result
Proceed to OK NG
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
Result:
OK
See step 33
- Remove the headlight assembly RH.
- CHECK HEADLIGHT LENS SUB-ASSEMBLY RH
- Temporarily replace the headlight lens sub-assembly RH with a new one or normally functioning one.
Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
- Check the operation of the clearance lights.
- Turn the ignition switch to ON.
- Turn the light control switch to the AUTO or TAIL position.
- Check the operation of the clearance lights and daytime running lights.
Refer to OPERATION CHECK [11/2018 - 08/2020]
OK
Clearance lights and daytime running lights operate normally.
Result
Proceed to OK NG
Result:
OK
END (HEADLIGHT LENS SUB-ASSEMBLY RH IS DEFECTIVE)
Result:
NG
REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to DISASSEMBLY [11/2018 - 02/2019] , or refer to DISASSEMBLY [02/2019 - 08/2020]
- Temporarily replace the headlight lens sub-assembly RH with a new one or normally functioning one.