Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001G213
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 -           ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): B279C95; Engine Immobiliser System Incorrect Assembly; 2019 - 2025 MY RAV4 HV [11/2018 -        ]

DTC

B279C95

Engine Immobiliser System Incorrect Assembly

DESCRIPTION

If a hybrid vehicle control ECU assembly that is incompatible with the immobiliser function is installed, the hybrid vehicle control ECU assembly 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 assembly that is incompatible with the immobiliser function is installed (1-trip detection logic*).

Hybrid vehicle control ECU assembly

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  • *: 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:

Before replacing the hybrid vehicle control ECU assembly, refer to the Registration.

Click here 2019 MY RAV4 HV [11/2018 - 10/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION 2020 - 2021 MY RAV4 HV [10/2019 - 12/2021]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION 2022 - 2025 MY RAV4 HV [12/2021 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

PROCEDURE

1.

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

(a) Replace the hybrid vehicle control ECU assembly with a new one.

Click here 2019 MY RAV4 HV [11/2018 - 02/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 MY RAV4 HV [08/2020 - 12/2021]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2022 MY RAV4 HV [12/2021 - 10/2022]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2023 MY RAV4 HV [10/2022 - 10/2023]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2024 - 2025 MY RAV4 HV [10/2023 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

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END (HYBRID VEHICLE CONTROL ECU ASSEMBLY WAS DEFECTIVE)