SYSTEM DESCRIPTION
AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL
(a) General
The automatic headlight beam level control system ensures forward visibility and prevents dazzling of drivers in oncoming and preceding vehicles by controlling the headlight beam level vertically when the weight of passengers and loads has caused the vehicle attitude to change.
(b) Function of Main Components
|
Component |
Outline |
|---|---|
|
Headlight ECU Sub-assembly |
Receives various signals, calculates changes in the vehicle posture, and actuates the headlight leveling motor. |
|
Headlight Unit Assembly (Headlight Leveling Motor) |
Based on the signals received from the headlight ECU sub-assembly LH or RH, the motors move the reflectors in the headlight to change the low beam angle. |
|
Rear Height Control Sensor Sub-assembly LH |
Transmits a height control sensor signal to the headlight ECU sub-assembly LH. |
|
Brake Actuator Assembly (Skid Control ECU) |
Transmits a speed sensor signal to the headlight ECU sub-assembly LH. |
|
ECM |
Transmits an engine running status signal to the headlight ECU sub-assembly LH. |
|
Main Body ECU (Multiplex Network Body ECU) |
Transmits a headlight status signal to the headlight ECU sub-assembly LH. |
|
Combination Meter Assembly |
If the system malfunctions, "Headlight System Malfunction Visit Your Dealer" warning message will be displayed on the multi-information display in the combination meter assembly in accordance with the signal from the headlight ECU sub-assembly LH. |
(c) Initial Set Control
When the engine is started, the headlight ECU sub-assembly LH drives the headlight leveling motor and moves the headlight reflector to the lower limit position and returns it to the proper position. The headlight ECU sub-assembly LH thus assesses the position of the headlight for reference control.
How To Proceed With Troubleshooting
InitializationToyota CH-R Service Manual > Audio And Visual System(for Radio Receiver Type): Terminals Of Ecu
TERMINALS OF ECU
Terminal No. (Symbol)
Wiring Color
Terminal Description
Condition
Specified Condition
F47-4 (MACC) - F48-7 (GND1)
B - LA
Microphone power supply
Ignition switch off
...
Toyota CH-R Service Manual > Vehicle Stability Control System: Calibration
CALIBRATION
DESCRIPTION
(a) Refer to the table below and then perform the necessary operation according
to the part to be replaced in order to perform calibration.
Parts to be Replaced
Necessary Operation
Skid control ECU (brake actuator assembly)
...