Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000026XCI |
Model Year Start: 2023 |
Model: Corolla |
Prod Date Range: [09/2022 -
] |
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B279046; ID-BOX Calibration / Parameter Memory Failure; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] |
DTC
|
B279046
|
ID-BOX Calibration / Parameter Memory Failure
|
DESCRIPTION
When an internal malfunction occurs in the ID code box (immobiliser code ECU), the certification ECU (smart key ECU assembly) stores this DTC.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
Note
|
B279046
|
ID-BOX Calibration / Parameter Memory Failure
|
An internal malfunction occurs in the ID code box (immobiliser code ECU) (EEPROM access malfunction) (1 trip detection logic*).
|
-
ID code box (immobiliser code ECU)
-
Certification ECU (smart key ECU assembly)
|
DTC output confirmation operation:
-
An immobiliser set/unset operation is performed (the ignition switch is turned off or to ON while the electrical key transmitter sub-assembly is being carried).
|
-
*: Only output while a malfunction is present.
Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected
|
Fail-safe Operation when Malfunction Detected
|
-
Ignition switch ON (READY): Hybrid control system cannot be started next time
-
Hybrid control system stopped: Hybrid control system cannot be started
|
-
|
Related Data List and Active Test
DTC No.
|
Data List and Active Test
|
B279046
|
-
|
CAUTION / NOTICE / HINT
PROCEDURE
1.
|
REPLACE ID CODE BOX (IMMOBILISER CODE ECU)
|
(a) Replace the ID code box (immobiliser code ECU) with a new one.
Click here
NEXT
|
|
|
(a) Using the GTS, clear the DTCs.
Body Electrical > Smart Key > Clear DTCs
NEXT
|
|
|
3.
|
REGISTER RECOGNITION CODE
|
(a) Register the recognition codes to the ECUs.
Click here
NEXT
|
|
|
4.
|
REGISTER ECU COMMUNICATION ID
|
(a) Register the ECU communication ID codes.
Click here
NEXT
|
|
|
(a) Using the GTS, check if DTC is output.
Body Electrical > Smart Key > Trouble Codes
Result
|
Proceed to
|
DTC B279046 is output
|
A
|
DTC B279046 is not output
|
B
|
B |
|
END (ID CODE BOX (IMMOBILISER CODE ECU) WAS DEFECTIVE)
|
|