B2420

LIGHTING (EXT): LIGHTING SYSTEM: B2420: AFS ECU Malfunction
B2420 - AFS ECU Malfunction

DESCRIPTION

When the headlight swivel ECU detects a malfunction in itself, this DTC is stored.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK FOR DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

OK:

DTC B2420 output does not occur.

NG -- REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Removal

OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting