| Last Modified: 01-27-2025 | 6.11:8.1.0 | Doc ID: RM1000000026XCL |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B279C95; Engine Immobiliser System Incorrect Assembly; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
|
DTC |
B279C95 |
Engine Immobiliser System Incorrect Assembly |
DESCRIPTION
If a hybrid vehicle control ECU that is incompatible with the immobiliser function is installed, the hybrid vehicle control ECU will store this DTC.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Note |
|---|---|---|---|---|
|
B279C95 |
Engine Immobiliser System Incorrect Assembly |
A hybrid vehicle control ECU that is incompatible with the immobiliser function is installed. (1-trip detection logic*) |
Hybrid vehicle control ECU |
- |
- *: Only detected while a malfunction is present.
Vehicle Condition and Fail-safe Function when Malfunction Detected
|
Vehicle Condition when Malfunction Detected |
Fail-safe Function when Malfunction Detected |
|---|---|
|
Hybrid control system cannot be started |
- |
Related Data List and Active Test
|
DTC No. |
Data List and Active Test |
|---|---|
|
B279C95 |
- |
CAUTION / NOTICE / HINT
NOTICE:
-
When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins.
Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Start Key(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
-
The smart key system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart key system (for Start Function) after confirming that the communication systems are functioning properly.
Click here
![2023 MY Corolla Corolla HV [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): HOW TO PROCEED WITH TROUBLESHOOTING](/t3Portal/stylegraphics/info.gif)
-
Before replacing the hybrid vehicle control ECU, refer to Registration.
Click here
- After performing repairs, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
-
When the hybrid vehicle control ECU is replaced, update the ECU security key.
Click here
PROCEDURE
|
1. |
REPLACE HYBRID VEHICLE CONTROL ECU |
(a) Temporarily replace the hybrid vehicle control ECU with a new one.
Click here
| NEXT |
|
END (HYBRID VEHICLE CONTROL ECU WAS DEFECTIVE) |
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