DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Lighting System (W/ AFS) - Diagnostic Codes (1 Of 2) >> LIGHTING SYSTEM (w/ AFS) >> DTC B2412-00: Swivel Motor LH Malfunction; DTC B2413-00: Swivel Motor RH Malfunction; DTC B2417-00: Leveling Motor LH Malfunction; DTC B2418-00: Leveling Motor RH Malfunction [11/2023 - ] >> Description

DTC B2412-00: Swivel Motor LH Malfunction; DTC B2413-00: Swivel Motor RH Malfunction; DTC B2417-00: Leveling Motor LH Malfunction; DTC B2418-00: Leveling Motor RH Malfunction [11/2023 - ]: 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 DTC Output from
B2412-00 Swivel Motor LH Malfunction Detection condition: 
  1. The ignition switch is ON

Malfunction status: 

  1. Headlight swivel and leveling motor malfunction detected

Malfunction duration: 

  1. -
Headlight assembly LH Headlight Control
B2413-00 Swivel Motor RH Malfunction Detection condition: 
  1. The ignition switch is ON

Malfunction status: 

  1. Headlight swivel and leveling motor malfunction detected

Malfunction duration: 

  1. -
Headlight assembly RH Headlight Control
B2417-00 Leveling Motor LH Malfunction Detection condition: 
  1. The ignition switch is ON

Malfunction status: 

  1. Headlight swivel and leveling motor malfunction detected

Malfunction duration: 

  1. -
Headlight assembly LH Headlight Control
B2418-00 Leveling Motor RH Malfunction Detection condition: 
  1. The ignition switch is ON

Malfunction status: 

  1. Headlight swivel and leveling motor malfunction detected

Malfunction duration: 

  1. -
Headlight assembly RH Headlight Control