Toyota CH-R Service Manual: Vehicle Specifications have not been Stored (B2451)

Toyota CH-R Service Manual / Lighting (ext) / Automatic Headlight Beam Level Control System / Vehicle Specifications have not been Stored (B2451)

DESCRIPTION

The headlight ECU sub-assembly LH stores this DTC if the vehicle specifications have not been stored in the ECU.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Note
B2451	Vehicle Specifications have not been Stored	Vehicle specifications have not been stored	Headlight ECU sub-assembly LH	-

CAUTION / NOTICE / HINT

NOTICE:

If the headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight ECU sub-assembly LH.

Click here

PROCEDURE

1.	SYNCHRONIZE VEHICLE INFORMATION

(a) Synchronize the vehicle information.

Click here

Body Electrical > HL AutoLeveling > Utility

Tester Display
ECU Information Sync

CLEAR DTC

(a) Clear the DTCs.

Click here

Body Electrical > HL AutoLeveling > Clear DTCs

3.	CHECK FOR DTC

(a) Turn the ignition switch to ON.

(b) Check for DTCs.

Click here

Body Electrical > HL AutoLeveling > Trouble Codes

OK:

DTC B2451 is not output.

END (VEHICLE SPECIFICATIONS WERE NOT STORED)

REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH

Left Headlight ECU Variation Error (B2456)

DESCRIPTION This DTC is stored when a headlight ECU sub-assembly LH which is not compatible with the vehicle has been installed. DTC No. Detection Item DTC Detecti ...

Initialization has not been Performed (B2450)

DESCRIPTION The headlight ECU sub-assembly LH stores this DTC if initialization has not been performed after the ECU was replaced. DTC No. Detection Item DTC Detec ...

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