ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:B2282, B2283

DTC Code DTC Name
B2282 Vehicle Speed Signal Malfunction
B2283 Vehicle Speed Sensor Malfunction

DESCRIPTION

DTC B2282 is stored when a mismatch between the vehicle speed signal from the direct line sent by the brake actuator assembly (skid control ECU) and the vehicle speed signal sent via CAN communication is detected.

DTC B2283 is stored when a malfunction in the vehicle speed sensor is detected.

Tech Tips

When the battery cable is disconnected and reconnected, the power source returns to the mode it was in before the battery cable was disconnected.

DTC No. DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2282 Mismatch between the vehicle speed signal from the direct line sent by the brake actuator assembly (skid control ECU) and the vehicle speed signal sent via CAN communication (1-trip detection logic*1).

  • AM2 No. 2 fuse

  • Vehicle stability control system

  • Certification ECU (smart key ECU assembly)

  • Wire harness or connector

 Drive the vehicle for 20 seconds at a vehicle speed of 25 km/h (16 mph) or more, and then drive the vehicle at a vehicle speed that is less than 5 km/h (3 mph) for 20 seconds.
B2283

Either condition is met (vehicle speed sensor malfunction is detected) (1-trip detection logic*1):


  • Vehicle speed signal malfunction detection 1: Large decrease in speed is detected.

  • Vehicle speed signal malfunction detection 2: Malfunction detected using engine speed-linked detection.

  • AM2 No. 2 fuse

  • Vehicle stability control system

  • Certification ECU (smart key ECU assembly)

  • Wire harness or connector

 Run the engine at an engine speed of 2000 rpm or more for 330 seconds.

Vehicle Condition and Fail-safe Function when Malfunction Detected
DTC No. Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
B2282

  • When the signal from the direct line or CAN communication is malfunctioning and indicates no vehicle speed, there is no effect on vehicle behavior.

  • When the signal from the direct line or CAN communication is malfunctioning and indicates that the vehicle is moving, the power source mode cannot be turned from on (IG) to off.

 -
B2283

  • If the engine switch is pressed while the vehicle is being driven, the engine switch turns off (the engine stops).

  • When the electrical key transmitter sub-assembly is inside the vehicle, the engine does not start even though an engine start operation is performed.

 Steering lock motor operation is prohibited.
Related Data List and Active Test Items
DTC No. Data List Item Active Test Item

B2282

B2283

    Power Source Control

  • Vehicle Speed Signal

  • Engine Condition

  • Power Supply Condition


    Engine

  • Engine Speed


    ABS/VSC/TRC

  • Vehicle Speed

 -

WIRING DIAGRAM

A004JQXE01

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the engine switch off to troubleshoot:

    Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the GTS and vehicle begins.

  • The entry and start system uses multiplex communication. First perform the inspections in "How to Proceed with Troubleshooting" to confirm that there are no communication malfunctions before proceeding with troubleshooting Click here.

  • Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) Click here.

  • After performing repairs, perform the operation that fulfills the DTC output confirmation operation, and then confirm that no DTCs are output again.

  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. READ VALUE USING GTS (VEHICLE SPEED)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

    5. According to the display on the GTS, read the Data List.

      ABS/VSC/TRC
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Almost same as actual vehicle speed (Speedometer tester) -
      OK
      The Data List value is approximately the same as the actual vehicle speed.

    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    OK

  2. READ VALUE USING GTS (VEHICLE SPEED SIGNAL)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Power Source Control / Data List.

    5. According to the display on the GTS, read the Data List.

      Power Source Control
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed Signal Vehicle moving or stationary / Stop or Run

      Run: Vehicle moving at 5 km/h (3 mph) or more

      Stop: Vehicle stopped

      		 -
      OK
      Stop (vehicle stopped) or Run (vehicle moving) appears on the screen according to the vehicle speed.

    OK

    GO TO VEHICLE STABILITY CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

    A004IP3E01
    Text in Illustration
    *a

    Rear view of harness connected

    (to Certification ECU (Smart Key ECU Assembly))

    1. Disconnect the D48 certification ECU (smart key ECU assembly) connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      D48-2 (+B) - Body ground Always 9.5 to 16 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE

    OK

  4. CHECK HARNESS AND CONNECTOR (GROUND)

    A004KBGE01
    Text in Illustration
    *a

    Rear view of harness connected

    (to Certification ECU (Smart Key ECU Assembly))

    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      D48-11 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - COMBINATION METER ASSEMBLY)


    1. Disconnect the D41 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the A5 brake actuator assembly (skid control ECU) connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      D41-27 (SPD) - A5-2 (VSO) Always Below 1 Ω
      D41-27 (SPD) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    A004ITSE02
    Text in Illustration
    *a

    Component with harness connected

    (Certification ECU (Smart Key ECU Assembly))

    		 - -

    1. Reconnect the A5 brake actuator assembly (skid control ECU) connector.

    2. Reconnect the D41 certification ECU (smart key ECU assembly) connector.

    3. Using an oscilloscope, check the vehicle speed input signal waveform from the combination meter at the terminal of the certification ECU (smart key ECU assembly).


      1. Check the signal waveform according to the conditions in the table below.

        Item Content
        Tester Connection D41-27 (SPD) - D48-11 (GND)
        Tool Setting 5 V/DIV., 100 ms./DIV.
        Condition Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph)
        OK
        The waveform is similar to that shown in the illustration.

        Tech Tips

        When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.


    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    GO TO VEHICLE STABILITY CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here