Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Steering Lock System Missing Message (B278187,B278196,B278211,B278215,B279F1C)

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System (for Start Function, Gasoline Model) / Steering Lock System Missing Message (B278187,B278196,B278211,B278215,B279F1C)

DESCRIPTION

As this DTC is not normally output, it may be due to noise in the LIN communication system, etc.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

B278187

Steering Lock System Missing Message

One of the following conditions is met (1-trip detection logic (Only output while a malfunction ispresent and the engine switch is on (IG).)):

  • Noise in the LIN communication system, etc.

ID code box (immobiliser code ECU)

 DTC Output Confirmation Operation:
  • No confirmation operation is necessary (monitoring is continuous).

B278196

Steering Lock System Component Internal Failure

One of the following conditions is met (1-trip detection logic (Only output while a malfunction ispresent and the engine switch is on (IG).)):

  • Noise in the LIN communication system, etc.

ID code box (immobiliser code ECU)

 DTC Output Confirmation Operation:
  • No confirmation operation is necessary (monitoring is continuous).

B278211

Power Source Control System Circuit Short to Ground

One of the following conditions is met (1-trip detection logic (Only output while a malfunction ispresent and the engine switch is on (IG).)):

  • Noise in the LIN communication system, etc.

ID code box (immobiliser code ECU)

 DTC Output Confirmation Operation:
  • No confirmation operation is necessary (monitoring is continuous).

B278215

Power Source Control System Circuit Short to Battery or Open

One of the following conditions is met (1-trip detection logic (Only output while a malfunction ispresent and the engine switch is on (IG).)):

  • Noise in the LIN communication system, etc.

ID code box (immobiliser code ECU)

 DTC Output Confirmation Operation:
  • No confirmation operation is necessary (monitoring is continuous).

B279F1C

Steering Lock Confirmation Signal Circuit Voltage Out of Range

One of the following conditions is met (1-trip detection logic (Only output while a malfunction ispresent and the engine switch is on (IG).)):

  • Noise in the LIN communication system, etc.

ID code box (immobiliser code ECU)

 DTC Output Confirmation Operation:
  • No confirmation operation is necessary (monitoring is continuous).
  • *: Only detected while a malfunction is present and the ignition switch is ON.
Vehicle Condition and Fail-safe Function when Malfunction Detected

DTC Code

Vehicle Condition when Malfunction Detected

Fail-safe Function when Malfunction Detected

B278187

The engine cannot be started.

Prohibits the engine from being started (the engine does not crank).

B278196

B278211

B278215

B279F1C
Related Data List and Active Test Items

DTC No.

Data List and Active Test

B278187

B278196

B278211

B278215

B279F1C

-

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 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.
  • 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

  • After performing repairs, confirm that no DTCs are output again.

HINT:

When all the ECUs that are connected via LIN communication cannot communicate with the certification ECU (smart key ECU assembly), DTC B278588 is stored.

PROCEDURE

1.

CHECK DTC

(a) Using the GTS, check if LIN communication DTC B278588 is output.

Body Electrical > Smart Key > Trouble Codes

HINT:

If a LIN communication DTC is output, perform troubleshooting for the LIN communication system.

Click here

Result

Proceed to

DTC B278588 is output

A

DTC B278588 is not output

B
A

GO TO LIN COMMUNICATION SYSTEM (DTC B278588)

B

2.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Smart Key > Clear DTCs
NEXT

3.

CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Smart Key > Trouble Codes

Result

Proceed to

DTC is output

A

DTC is not output

B
A

REPLACE ID CODE BOX (IMMOBILISER CODE ECU)

B

END

    READ NEXT:

     Antenna Coil Circuit Voltage Out of Range (B27841C)

    DESCRIPTION When an open or short circuit is detected in the transponder key amplifier coil built into the engine switch, the certification ECU (smart key ECU assembly) stores this DTC. This DTC is al

     ID-BOX Component Internal Failure (B278D96)

    DESCRIPTION When the certification ECU (smart key ECU assembly) detects an input signal indicating that the vehicle is equipped with an ID code box even though the ID code box is not registered, the c

     Immobiliser Amp Missing Message (B278E87)

    DESCRIPTION A transponder key amplifier is built into the certification ECU (smart key ECU assembly). When a communication malfunction occurs with the transponder key amplifier inside the certificat

    SEE MORE:

     Front Wiper Rubber

    Removal REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 FRONT WIPER BLADE 85222A - - 2 WIPER RUBBER

     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 TRANSMISSION VALVE BODY ASSEMBLY 35410J - - 2 TRANSAXLE

    © 2020-2024 Copyright www.tcorollacross.com