Lexus NX: Headlight Swivel Motor LH (B2412,B2413)
DESCRIPTION
The headlight ECU sub-assembly LH sends automatic headlight beam level control signals to each headlight swivel and leveling motor via LIN communication.
Each headlight ECU sub-assembly and headlight swivel and leveling motor communicate via LIN communication.
The headlight swivel and 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 and leveling motor is malfunctioning.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B2412 | Headlight Swivel Motor LH |
| Headlight unit assembly LH |
| B2413 | Headlight Swivel Motor RH |
| Headlight unit assembly RH |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.
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PROCEDURE
| 1. | CHECK FOR DTC |
(a) Clear the DTCs.
Click here
(b) Turn the power switch on (IG).
(c) Check for DTCs.
Click here
OK:
DTC B2412 and B2413 are not outputs.
| Result | Proceed to |
|---|---|
| OK | A |
| NG (DTC B2412 is output) | B |
| NG (DTC B2413 is output) | C |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE HEADLIGHT UNIT ASSEMBLY LH |
| C | | REPLACE HEADLIGHT UNIT ASSEMBLY RH |
READ NEXT:
Parts Location
PARTS LOCATION ILLUSTRATION *1 REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH *2 BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SKID CONTROL ECU) *3 HEADLIGHT ASSEMBLY LH - HEADLIGHT ECU SUB
System Diagram
SYSTEM DIAGRAM
SEE MORE:
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the GTS to read the Data List allows the values or states of switch
Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio receiver assembly via this circuit. The sound signal that has been sent is amplified by the stereo component amplifier assembly and then is sent to the speakers. If there is an open or shor
