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 | AFS |
| B2413 | Headlight Swivel Motor RH |
| Headlight unit assembly RH | AFS |
| B2417 | Headlight Beam Level Control Motor LH |
| Headlight unit assembly LH | AFS |
| B2418 | Headlight Beam Level Control Motor RH |
| Headlight unit assembly RH | AFS |
WIRING DIAGRAM
PROCEDURE
| 1. | CLEAR DTC |
(a) Connect the Techstream to the DLC3.
(b) Turn the power 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 power 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 booster with master cylinder assembly) via CAN communication and performs light control. for LED T
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:
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) The motor generator control ECU (MG ECU) (inverter with converter assembly) has a self-diagnosis system. If the motor generator control ECU (MG ECU), motor generator system or a component is not working properly, the ECU records the conditions that relate to the faul
RCTB Sensor (C1AF7)
DESCRIPTION This DTC is stored when the clearance warning ECU assembly receives a signal from the blind spot monitor system via CAN communication indicating a malfunction in the blind spot monitor sensor. DTC No. Detection Item DTC Detection Condition Trouble Area C1AF7 RCTB Sensor
