Lexus NX manuals

Lexus NX: Vehicle Speed Sensor Malfunction (B2415)

Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Automatic Headlight Beam Level Control System (for Triple Beam Headlight) / Vehicle Speed Sensor Malfunction (B2415)

DESCRIPTION

The headlight ECU sub-assembly LH receives speed signals from the brake booster with master cylinder assembly (skid control ECU) via CAN communication and performs light control.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2415

Vehicle Speed Sensor Malfunction
  • Power switch on (IG)
  • Wheel speed sensor invalid signals are continuously received from the brake booster with master cylinder assembly (skid control ECU)
  • 10 seconds or more

Electronically controlled brake system

WIRING DIAGRAM

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Click here

Body Electrical > AFS > Clear DTCs

(b) Turn the power switch on (IG) and wait for at least 10 seconds or more.

(c) Check for DTCs.

Click here

Body Electrical > AFS > Trouble Codes

OK:

DTC B2415 is not output.

OK

USE SIMULATION METHOD TO CHECK

NG

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

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