AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2415

DTC Code	DTC Name
B2415	Vehicle Speed Sensor Malfunction

DESCRIPTION

The No. 1 headlight ECU sub-assembly LH receives signals indicating the vehicle speed signal from the brake booster with master cylinder assembly (skid control ECU) using CAN communication. The No. 1 headlight ECU sub-assembly LH stores DTC B2415.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2415	Vehicle Speed Sensor Malfunction	Malfunction in vehicle speed signal	No. 1 headlight ECU sub-assembly LH Brake booster with master cylinder assembly (Skid control ECU)	-

WIRING DIAGRAM


*1	Brake Booster with Master Cylinder Assembly (Skid Control ECU)
*2	No. 1 Headlight ECU Sub-assembly LH
*3	CAN Communication Line

CAUTION / NOTICE / HINT

Note

Confirm that there are no CAN communication system malfunctions before performing the following inspection.

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If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.

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PROCEDURE

CLEAR DTC

Clear the DTCs.

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Body Electrical > HL AutoLeveling > Clear DTCs

Result

Proceed to
NEXT

CHECK FOR DTC

Turn the power switch on (IG).

Check for DTCs.

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Body Electrical > HL AutoLeveling > Trouble Codes

OK
DTC B2415 is not output.

Result

Proceed to
OK
NG

USE SIMULATION METHOD TO CHECK Click here

CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)

Check for DTCs.

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Chassis > ABS/VSC/TRC > Trouble Codes

OK
Electronically controlled brake system DTCs are not output.

Result

Proceed to
OK
NG

REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH Click here

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here