SYSTEM DESCRIPTION
AUTOMATIC HIGH BEAM SYSTEM
(a) General
The automatic high beam system enhances the illumination of the area in front of the vehicle to improve visibility for the driver. It works by detecting light from the front of the vehicle, using the forward recognition camera, and turns the high beams of the headlights on or off automatically.
(b) Function of Main Components
Component |
Outline |
---|---|
Forward Recognition Camera |
Determines when to turn the high beams on and off after identifying the lights of oncoming vehicles, preceding vehicles and other lights from the picture information of its camera sensor. Then, it sends high beam request signals to the main body ECU (multiplex network body ECU) via CAN communication. |
Airbag ECU Assembly (Yaw Rate Sensor) |
Outputs yaw rate information to the forward recognition camera. |
Brake Actuator Assembly (Skid Control ECU Assembly) |
Outputs the information about the speed of the wheels. This information is used by the forward recognition camera to turn the high beams on and off. |
Combination Meter Assembly |
Turns on the automatic high beam indicator light and displays a message on the multi-information display based on an indicator illumination request signal from the main body ECU (multiplex network body ECU). HINT:
|
Main Body ECU (Multiplex Network Body ECU) |
|
Auto High Beam Switch |
Enables or disables the automatic high beam system. |
ECM |
Outputs a signal to indicate that the shift lever is in R. Based on this signal, the forward recognition camera turns the high beams off. |
(c) Basic Function
(1) When all of the following conditions are met, the automatic high beam system is activated and the automatic high beam indicator light turns on:
(2) When all of the following conditions are met, the high beams automatically turn on after a short delay:
(3) When any of the following conditions are met, the high beams automatically turn off after a short delay:
(4) When any of the following conditions are met, the automatic high beam system will be canceled and the indicator light will turn off:
HINT:
It is possible to manually turn the high beams on and off by performing either of the following operations:
HINT:
The automatic high beam system monitors the area in front of the vehicle using the forward recognition camera and makes a judgment to turn on the high beams when the surrounding area is dark (there are no headlights from oncoming vehicles and no taillights from preceding vehicles). High beam control limitations:
HINT:
The forward recognition camera continually monitors the light level in the area in front of the vehicle. There is a delay in turning on the high beams. Even when there is no ambient light, the high beams will not turn on immediately. The delay will vary depending on the situation.
Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B7,B15BA)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the radio and display receiver
assembly.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
B1551
HD Radio Tuner Malfunction
When any of the ...
Toyota CH-R Service Manual > Front Door: Reassembly
REASSEMBLY
CAUTION / NOTICE / HINT
HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE
1. INSTALL NO. 2 FRONT DOOR STRIPE
Click here
2. INSTALL FRONT DOOR OUTSIDE STRIPE
Click here
3. INSTALL NO. 4 FRONT D ...