Wednesday, April 8, 2020

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 294


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 B124B is not output.



NG -- CHECK FOR DTC



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 FOR DTC



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



Result:



D -- REPLACE INNER REAR VIEW MIRROR ASSEMBLY



C -- GO TO DTC CHART See: U Code Charts/U0073/Lighting System/Up to 08/2009



B -- GO TO DTC CHART See: B2415/Up to 08/2009



A -- GO TO DTC CHART See: B2414/Up to 08/2009



From 08/2009



LIGHTING (EXT): LIGHTING SYSTEM: B124B: Automatic High Beam System



B124B - Automatic High Beam System



DESCRIPTION



The DTC is stored when the main body ECU (multiplex network body ECU) detects malfunctions in the automatic high beam system.

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