Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026XCG |
Model Year Start: 2023 |
Model: Corolla |
Prod Date Range: [09/2022 -
] |
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B278D96; ID-BOX Component Internal Failure; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] |
DTC
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B278D96
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ID-BOX Component Internal Failure
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DESCRIPTION
When the certification ECU (smart key ECU assembly) detects an input signal indicating that the vehicle is equipped with an ID code box even though the ID code box is not registered, the certification ECU (smart key ECU assembly) stores this DTC.
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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Note
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B278D96
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ID-BOX Component Internal Failure
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One of the following conditions is met:
-
The certification ECU (smart key ECU assembly) recognizes that the wire harness judging whether the vehicle is equipped with an ID code box or not is provided even though the ID code box is not registered.
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The certification ECU (smart key ECU assembly) receives a LIN signal from the ID code box even though the ID code box is not registered.
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The certification ECU (smart key ECU assembly) receives a LIN signal from the ID code box even though the wire harness judging whether the vehicle is equipped with an ID code box or not is not provided.
|
Misconnection of the ID code box
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DTC output confirmation operation:
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Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected
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Fail-safe Operation when Malfunction Detected
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Key registration will be prohibited
|
-
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Related Data List and Active Test
DTC No.
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Data List and Active Test
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B278D96
|
-
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CAUTION / NOTICE / HINT
PROCEDURE
(a) Clear the DTCs.
Body Electrical > Smart Key > Clear DTCs
NEXT
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|
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(a) Check for DTCs.
Body Electrical > Smart Key > Trouble Codes
HINT:
Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.
OK:
DTC B278D96 is not output.
OK |
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END
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