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 > Can Communication System(for Hv Model): Precaution
PRECAUTION NOTICE FOR INITIALIZATION NOTICE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following systems after the cable is reconnected. System See Procedure Lane Departure Alert System (w/ Steering Control) Pre-collision System Intelligent Clearan ...