Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000015142
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 -           ]
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): B279C95; Engine Immobiliser System Incorrect Assembly; 2018 - 2024 MY Camry HV [07/2017 -        ]

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

-
  • *: 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 Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream 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 2018 - 2022 MY Camry HV [07/2017 - 08/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): HOW TO PROCEED WITH TROUBLESHOOTING 2023 - 2024 MY Camry HV [08/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): HOW TO PROCEED WITH TROUBLESHOOTING

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

    Click here 2018 - 2019 MY Camry HV [07/2017 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2020 - 2022 MY Camry HV [09/2019 - 08/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION 2023 - 2024 MY Camry HV [08/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function): REGISTRATION

  • After performing repairs, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

PROCEDURE

1.

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

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

Click here 2018 - 2020 MY Camry HV [07/2017 - 10/2020]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL 2021 - 2024 MY Camry HV [10/2020 -        ]; HYBRID / BATTERY CONTROL: HYBRID VEHICLE CONTROL ECU: REMOVAL

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END (HYBRID VEHICLE CONTROL ECU ASSEMBLY WAS DEFECTIVE)