Lexus ES: Headlight Swivel Motor LH (B2412,B2413,B2417,B2418)
DESCRIPTION
The headlight ECU sub-assembly LH sends automatic headlight beam level control signals to each headlight swivel motor and headlight leveling motor via LIN communication.
Each headlight ECU sub-assembly and headlight swivel motor and headlight leveling motor communicate via LIN communication.
The headlight swivel motor and headlight leveling motor operates according to power supplied and automatic headlight beam level control signals from its respective headlight ECU sub-assembly and sends its operating state to the headlight ECU sub-assembly.
The headlight ECU sub-assembly LH stores a DTC if it detects that a headlight swivel motor and headlight leveling motor is malfunctioning.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| B2412 | Headlight Swivel Motor LH |
| Headlight unit assembly LH | Headlight ECU sub-assembly LH |
| B2413 | Headlight Swivel Motor RH |
| Headlight unit assembly RH | Headlight ECU sub-assembly LH |
| B2417 | Headlight Beam Level Control Motor LH |
| Headlight unit assembly LH | Headlight ECU sub-assembly LH |
| B2418 | Headlight Beam Level Control Motor RH |
| Headlight unit assembly RH | Headlight ECU sub-assembly LH |
WIRING DIAGRAM
PROCEDURE
| 1. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
|
.gif)
| 2. | CHECK FOR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / AFS / Trouble Codes.
(e) Check for DTCs.
Body Electrical > AFS > Trouble CodesOK:
DTC B2412, B2413, B2417 and B2418 are not output.
| Result | Proceed to |
|---|---|
| OK | A |
| NG (DTC B2412 or B2417 is output) | B |
| NG (DTC B2413 or B2418 is output) | C |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE HEADLIGHT UNIT ASSEMBLY LH |
| C | | REPLACE HEADLIGHT UNIT ASSEMBLY RH |
READ NEXT:
Steering Position Sensor (B2414)
DESCRIPTION The headlight ECU sub-assembly LH receives steering angle signals from the steering sensor via CAN communication and performs light control. for LED Type Turn Signal Light DTC No. Det
Vehicle Speed Sensor (B2415)
DESCRIPTION The headlight ECU sub-assembly LH receives speed signals from the skid control ECU (brake actuator assembly) via CAN communication and performs light control. for LED Type Turn Signal Ligh
Rear Height Control Sensor (B241A)
DESCRIPTION The headlight ECU sub-assembly LH determines the vehicle height and performs automatic headlight beam level control based on signals from the rear height control sensor sub-assembly LH via
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during blind spot monitor buzzer removal/installation are shown below. Necessary Procedure After Parts Removed
Precaution
PRECAUTION PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM (a) Before the following operations are conducted, take precautions to prevent electric shock by turning the power switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
Inspecting the high-voltage syst
