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
NEXT

2.

CLEAR DTC

(a) Clear the DTCs.

Click here

Body Electrical > HL AutoLeveling > Clear DTCs
NEXT

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.

OK

END (VEHICLE SPECIFICATIONS WERE NOT STORED)
NG

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 ...

    Other materials:

    Toyota CH-R Service Manual > Blind Spot Monitor System: Short to GND in Outer Mirror Indicator(Slave) (C1AB3)
    DESCRIPTION This DTC is stored when the blind spot monitor sensor RH (Slave) detects a short to ground in the outer rear view mirror indicator RH. DTC No. Detection Item DTC Detection Condition Trouble Area C1AB3 Short to GN ...

    Toyota CH-R Service Manual > Air Conditioning System(for Automatic Air Conditioning System With Top-mounted Air Conditioner Pressure Sensor): Terminals Of Ecu
    TERMINALS OF ECU AIR CONDITIONING AMPLIFIER ASSEMBLY HINT: Check from the rear of the connector while it is connected to the air conditioning amplifier assembly. Terminal No. (symbol) Wiring Color Terminal Description Condition Specified ...

    Toyota C-HR (AX20) 2023-2025 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2025 Copyright www.tochr.net
    0.0115