DESCRIPTION This DTC is stored if the headlight ECU sub-assembly LH for another destination is installed.
CAUTION / NOTICE / HINT NOTICE:
PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes. (e) Clear the DTCs. Body Electrical > HL AutoLeveling > Clear DTCs
(a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / HL AutoLeveling / Trouble Codes. (e) Check for DTCs. Body Electrical > HL AutoLeveling > Trouble CodesOK: DTC B2456 is not output.
(a) Check if the part number of the ECM installed to the vehicle is correct. OK: Part number is correct.
(a) Check if the part number of the main body ECU (multiplex network body ECU) installed to the vehicle is correct. OK: Part number is correct.
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Pre-collision System(for Gasoline Model): Driving Support ECU (C1A01)
DESCRIPTION The driving support ECU assembly uses the millimeter wave radar sensor assembly to detect objects in front of the vehicle. Based on signals from the millimeter wave radar sensor assembly, the driving support ECU assembly calculates the possibility of a collision and operates the pre-coll ...