Toyota Yaris: Smart Key System (for Start Function) / Engine Immobiliser System Incorrect Assembly (B279C95)
DESCRIPTION
If an ECM that is incompatible with the immobiliser function is installed, the ECM will store this DTC.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
B279C95 | Engine Immobiliser System Incorrect Assembly | An ECM that is incompatible with the immobiliser function is installed. (1-trip detection logic*) | ECM | - |
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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 |
Engine cannot be started | - |
Related Data List and Active Test
DTC No. | Data List and Active Test |
B279C95 | - |
CAUTION / NOTICE / HINT
NOTICE:
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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 the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. 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.
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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.
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Before replacing the ECM, refer to Registration.
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After performing repairs, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
PROCEDURE
(a) Temporarily replace the ECM with a new one.
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NEXT |
| END (ECM WAS DEFECTIVE) |
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Categories
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