LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2022 >> RAV4 LE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Lighting System (W/ AFS) - Diagnostic Codes & Circuit Tests) >> LIGHTING SYSTEM (w/ AFS) >> DTC B2424: Headlight Beam Level Control Motor LH Lost Communication; DTC B2425: Headlight Beam Level Control Motor RH Lost Communication [02/2019 - 12/2021] >> Description

DTC B2424: Headlight Beam Level Control Motor LH Lost Communication; DTC B2425: Headlight Beam Level Control Motor RH Lost Communication [02/2019 - 12/2021]: Description

WARNING: This page is about a different car, the 2021 Toyota RAV4, 2020 Toyota RAV4, and 2019 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

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.

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from
B2424 Headlight Beam Level Control Motor LH Lost Communication Detection condition: 
  1. The power switch is on (IG).

Malfunction status: 
  1. LIN communication error

Malfunction duration: 
  1. 10 seconds or more
  • Headlight unit assembly LH
  • Headlight unit assembly RH
  • Harness or connector
  • Headlight ECU sub-assembly LH
  • Headlight ECU sub-assembly RH
AFS
B2425 Headlight Beam Level Control Motor RH Lost Communication Detection condition: 
  1. The power switch is on (IG).

Malfunction status: 
  1. LIN communication error

Malfunction duration: 
  1. 10 seconds or more
  • Headlight unit assembly RH
  • Headlight unit assembly LH
  • Harness or connector
  • Headlight ECU sub-assembly RH
  • Headlight ECU sub-assembly LH
AFS