Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001AULP |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 09/2022] |
Title: LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): B2451; Variation Code not Written; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022] |
DTC
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B2451
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Variation Code not Written
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DESCRIPTION
The headlight ECU sub-assembly LH stores this DTC if the vehicle specifications have not been stored.
DTC No.
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Detection Item
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DTC Detection Condition
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Trouble Area
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DTC Output from
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B2451
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Variation Code not Written
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Detection condition:
-
The engine switch is on (IG).
Malfunction status:
-
Vehicle specifications have not been stored
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Headlight ECU sub-assembly LH
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AFS
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CAUTION / NOTICE / HINT
NOTICE:
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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
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When replacing the headlight ECU sub-assembly LH, always replace it with a new one. If a headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
PROCEDURE
1.
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SYNCHRONIZE VEHICLE INFORMATION
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(a) Synchronize the vehicle information.
Click here
NEXT
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|
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(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 / AFS / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > AFS > Clear DTCs
NEXT
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|
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(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 / AFS / Trouble Codes.
(e) Check for DTCs.
Body Electrical > AFS > Trouble Codes
OK:
DTC B2451 is not output.
HINT:
If the headlight ECU sub-assembly LH stores DTC B2451 even though the vehicle information has been synchronized, the headlight ECU sub-assembly LH may be malfunctioning.
OK |
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END (VEHICLE SPECIFICATIONS WERE NOT STORED)
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