Automatic High Beam System does not Operate or Operation Indicator does not Illuminate [03/2017 - 04/2020]: Procedure
- CHECK AUTOMATIC HIGH BEAM INDICATOR LIGHT
- Check the operation of the automatic high beam indicator light.
- Turn the engine switch on (IG).
- Turn the light control switch to the AUTO or head position.
- Turn the headlight dimmer switch to the high position.
- Turn the automatic high beam main switch on.
OK
Automatic high beam indicator light illuminate.
Result
Proceed to OK NG
Result:
NG
See step 4
Result:
OK
See step 2
- Check the operation of the automatic high beam indicator light.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020]
- Shine a light on the automatic high beam sensor*.
HINT:
*: If troubleshooting is being performed in a bright area, such as outside on a sunny day, it will not be necessary to perform this step.
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Auto H Beam STS0 Automatic high beam sensor state past 0 Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin, LIN Err Condition can be displayed - Body Electrical > Main Body > Data List
Tester Display Auto H Beam STS0 OK
The Data List value displays ""Daytime".
*1 Forward Recognition Camera (Automatic High Beam Sensor) *2 Work Light or Equivalent *a 100 mm (3.94 in.) or less
Result
Proceed to OK NG - Shine a light on the automatic high beam sensor*.
Result:
NG
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [03/2017 - 05/2023]
Result:
OK
See step 3
- Using the Techstream, read the Data List.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020]
- Cover the automatic high beam sensor with an opaque object, such as cardboard.NOTE:
- Make sure that there is no clearance between the cardboard or equivalent object and the area of the windshield glass in front of the automatic high beam sensor.
- If there is any clearance, light may shine on the automatic high beam sensor and the value of the Data List will not change.
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Auto H Beam STS0 Automatic high beam sensor state past 0 Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin, LIN Err Condition can be displayed - Body Electrical > Main Body > Data List
Tester Display Auto H Beam STS0 OK
The Data List value displays ""Speed".
*1 Cardboard or Equivalent Object *a 150 mm (5.91 in.) or higher *b 3 mm (0.118 in.) or higher
Result
Proceed to OK NG - Cover the automatic high beam sensor with an opaque object, such as cardboard.
Result:
OK
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020]
Result:
NG
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [03/2017 - 05/2023]
- Using the Techstream, read the Data List.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020]
Chassis > Steering Angle Sensor > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Auto High Beam Main Switch Automatic high beam main switch signal OFF or ON OFF: Automatic high beam main switch off
ON: Automatic high beam main switch on- Chassis > Steering Angle Sensor > Data List
Tester Display Auto High Beam Main Switch OK
Normal condition listed above is displayed.
Result
Proceed to OK NG
Result:
NG
See step 7
Result:
OK
See step 5
- Using the Techstream, read the Data List.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020]
Body Electrical > Main Body > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Auto H Beam STS0 Automatic high beam sensor state past 0 Undetec, CAM NA, No sens, Hlight, Taillgt, Speed, Daytime, Village, Malfunc, Delay, Aim Lmt, SAE Mod, Undefin, LIN Err Condition can be displayed - Body Electrical > Main Body > Data List
Tester Display Auto H Beam STS0 OK
The Data List value displays "Daytime" or "Speed".
Result
Proceed to OK NG
Result:
NG
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [03/2017 - 05/2023]
Result:
OK
See step 6
- Using the Techstream, read the Data List.
- PERFORM ACTIVE TEST USING TECHSTREAM
- Perform the Active Test according to the display on the Techstream.
Refer to DATA LIST / ACTIVE TEST [03/2017 - 04/2020]
Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Automatic High Beam Indicator Automatic high beam indicator light OFF or ON - Body Electrical > Combination Meter > Active Test
Tester Display Automatic High Beam Indicator OK
Automatic high beam indicator light illuminate.
Result
Proceed to OK NG
Result:
OK
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to REMOVAL [03/2017 - 05/2023]
Result:
NG
REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [03/2017 - ]
- Perform the Active Test according to the display on the Techstream.
- INSPECT TURN SIGNAL SWITCH
- Remove the turn signal switch.
Refer to REMOVAL [03/2017 - ]
- Inspect the turn signal switch.
Refer to INSPECTION [03/2017 - 04/2020]
Result
Proceed to OK NG
Result:
NG
REPLACE TURN SIGNAL SWITCH. Refer to REMOVAL [03/2017 - ]
Result:
OK
See step 8
- Remove the turn signal switch.
- INSPECT STEERING WHEEL SWITCH HOUSING
- Remove the steering wheel switch housing.
Refer to REMOVAL [03/2017 - 05/2023]
- Inspect the steering wheel switch housing.
Refer to INSPECTION [03/2017 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE STEERING SENSOR. Refer to REMOVAL [03/2017 - 05/2023]
Result:
NG
REPLACE STEERING WHEEL SWITCH HOUSING. Refer to REMOVAL [03/2017 - 05/2023]
- Remove the steering wheel switch housing.