Automatic High Beam System does not Operate or Operation Indicator does not Illuminate [11/2021 - 10/2023]: Procedure
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DTC CHECK / CLEAR [10/2020 - 10/2023]
Chassis > Front Recognition Camera > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note Front Recognition Camera High Temperature 2 Whether high temperature malfunction of forward recognition camera exists or not Not High Temperature or High Temperature Not High Temperature: Approximately 65°C (149°F) or less
High Temperature: Approximately 65°C (149°F) or higherIf this item is "High Temperature", the automatic high beam system will be temporarily unavailable. If this does not improve even if the inside of the vehicle is left cooled for at least 10 minutes, the forward recognition camera may be malfunctioning.
HINT:
In summertime, the windshield glass may reach 100°C (212°F) or higherChassis > Front Recognition Camera > Data List
Tester Display Front Recognition Camera High Temperature 2 OK
Normal condition listed above is displayed.
HINT:
When "High Temperature" is displayed, move the vehicle to a cool area and turn the engine switch off to allow the temperature of the front recognition camera to decrease.
Result
Proceed to OK NG
Result:
NG
END (THE SYSTEM STOPPED OPERATING DUE TO HIGH TEMPERATURES)
Result:
OK
See step 2
- Using the Techstream, read the Data List.
- 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 low position.
- Turn the automatic high beam main switch on.
OK
Automatic high beam indicator light illuminates.
Result
Proceed to OK NG
Result:
NG
See step 5
Result:
OK
See step 3
- 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 [10/2020 - 10/2023]
- 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 Automatic High Beam Sensor *2 Work Light or Equivalent *a 100 mm (3.94 in.) or less
Result
Result Proceed to OK A NG (for Stereo Camera Type) B NG (for Mono Camera Type) C - Shine a light on the automatic high beam sensor*.
Result:
B
REPLACE OBJECT RECOGNITION CAMERA. Refer to REMOVAL [10/2020 - 10/2023]
Result:
C
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [11/2021 - 10/2023]
Result:
A
See step 4
- Using the Techstream, read the Data List.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [10/2020 - 10/2023]
- 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
Result Proceed to OK A NG (for Stereo Camera Type) B NG (for Mono Camera Type) C - Cover the automatic high beam sensor with an opaque object, such as cardboard.
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - 10/2022] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - 10/2023]
Result:
B
REPLACE OBJECT RECOGNITION CAMERA. Refer to REMOVAL [10/2020 - 10/2023]
Result:
C
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [11/2021 - 10/2023]
- Using the Techstream, read the Data List.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [10/2020 - 10/2023]
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 8
Result:
OK
See step 6
- Using the Techstream, read the Data List.
- READ VALUE USING TECHSTREAM
- Using the Techstream, read the Data List.
Refer to DATA LIST / ACTIVE TEST [10/2020 - 10/2023]
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
Result Proceed to OK A NG (for Stereo Camera Type) B NG (for Mono Camera Type) C
Result:
B
REPLACE OBJECT RECOGNITION CAMERA. Refer to REMOVAL [10/2020 - 10/2023]
Result:
C
REPLACE FORWARD RECOGNITION CAMERA. Refer to REMOVAL [11/2021 - 10/2023]
Result:
A
See step 7
- 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 [10/2020 - 10/2023]
Body Electrical > Combination Meter > Active Test
Tester Display Measurement Item Control Range Diagnostic Note Automatic High Beam Indicator (Green) Automatic high beam indicator light OFF or ON - Body Electrical > Combination Meter > Active Test
Tester Display Automatic High Beam Indicator (Green) OK
Automatic high beam indicator light illuminates.
Result
Proceed to OK NG
Result:
OK
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]
Result:
NG
REPLACE COMBINATION METER ASSEMBLY. Refer to REMOVAL [10/2020 - 10/2023]
- Perform the Active Test according to the display on the Techstream.
- INSPECT TURN SIGNAL SWITCH
- Remove the turn signal switch.
Refer to REMOVAL [12/2017 - ]
- Inspect the turn signal switch.
Refer to INSPECTION [10/2020 - ]
Result
Proceed to OK NG
Result:
NG
REPLACE TURN SIGNAL SWITCH. Refer to REMOVAL [12/2017 - ]
Result:
OK
See step 9
- Remove the turn signal switch.
- INSPECT STEERING WHEEL SWITCH HOUSING
- Remove the steering wheel switch housing.
Refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]
- Inspect the steering wheel switch housing.
Refer to INSPECTION [12/2017 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE STEERING SENSOR. Refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]
Result:
NG
REPLACE STEERING WHEEL SWITCH HOUSING. Refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023]
- Remove the steering wheel switch housing.