Sunday, April 25, 2021

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 300


NG -- REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) See: Lighting and Horns/Headlamp/Headlamp



Alignment Control Module/Service and Repair/Components



OK -- REPLACE INNER REAR VIEW MIRROR ASSEMBLY



From 08/2009



LIGHTING (EXT): LIGHTING SYSTEM: B124D,B2432: Lost Communication with AFS LIN



B124D - Lost Communication with AFS LIN



B2432 - Lost Communication with Automatic High Beam Sensor



DESCRIPTION



* The DTC B124D is stored when the main body ECU (multiplex network body ECU) detects malfunctions in the LIN communication system.



* The DTC B2432 is stored when the AFS ECU (headlight swivel ECU assembly) detects malfunctions in the LIN communication system.



WIRING DIAGRAM



INSPECTION PROCEDURE



NOTICE:



First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN



communication malfunctions before troubleshooting this symptom.



PROCEDURE



1. CHECK FOR DTC



(a) Clear the DTCs See: Lighting and Horns/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.



(b) Check for DTCs See: Lighting and Horns/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes.



OK:



DTC B124D is not output.



NG -- CHECK HARNESS AND CONNECTOR (AFS ECU - INNER REAR VIEW MIRROR ASSEMBLY)



OK -- USE SIMULATION METHOD TO CHECK See: Accessories and Optional Equipment/Antitheft and Alarm



Systems/Diagrams/Diagnostic Aids/How To Troubleshoot ECU Controlled Systems/How To Proceed With Troubleshooting



2. CHECK HARNESS AND CONNECTOR (AFS ECU - INNER REAR VIEW MIRROR ASSEMBLY)

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