Dtc B2420 Afs Ecu Malfunction

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - LIGHTING EXT

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC

DTC B2420 AFS ECU Malfunction

DTC B2420 HL AutoLeveling ECU Failure

DESCRIPTION

When the headlight leveling ECU*1 or headlight swivel ECU*2 detects a malfunction in itself, this DTC is stored.


*1: w/ Static Headlight Auto Leveling
*2: w/ Dynamic Headlight Auto Leveling
DTC CodeDTC Detection ConditionTrouble Area
B2420
A malfunction in the headlight leveling ECU. (w/ Static Headlight Auto Leveling)
A malfunction in the headlight swivel ECU. (w/ Dynamic Headlight Auto Leveling)
Headlight leveling ECU assembly (w/ Static Headlight Auto Leveling)
Headlight swivel ECU assembly (w/ Dynamic Headlight Auto Leveling)

INSPECTION PROCEDURE

  • NOTICE:
  • After replacing the headlight leveling ECU*1 or headlight swivel ECU*2, initialization of the ECU is necessary (except w/ Dynamic Headlight Auto Leveling) ().
*1: w/ Static Headlight Auto Leveling
*2: w/ Dynamic Headlight Auto Leveling
1.CHECK FOR DTC

Clear the DTCs ().

Check for DTCs ().

  • OK:
  • DTC B2420 output does not occur.
Result
ResultProceed to
OKA
NG (w/ Static Headlight Auto Leveling)B
NG (w/ Dynamic Headlight Auto Leveling) (for LHD)C
NG (w/ Dynamic Headlight Auto Leveling) (for RHD)D
B
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY ()
C
REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY ()
D
REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY ()
A
USE SIMULATION METHOD TO CHECK ()