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

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

DTC B2282 is stored when the vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication do not match.

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

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2282 Vehicle Speed Signal Malfunction The vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication do not match. (1-trip detection logic*)

  • AM2 fuse

  • Meter/gauge system

  • Certification ECU (smart key ECU assembly)

  • Wire harness or connector
  • DTC Output Confirmation Operation:

  • Drive the vehicle at a vehicle speed of 25 km/h (16 mph) or more for 20 seconds, and then drive the vehicle at a vehicle speed of less than 5 km/h (3 mph) for 20 seconds.
B2283 Vehicle Speed Sensor Malfunction Vehicle speed signal malfunction is detected (excessive deceleration is detected). (1-trip detection logic*)

  • AM2 fuse

  • Meter/gauge system

  • Certification ECU (smart key ECU assembly)

  • Wire harness or connector
  • DTC Output Confirmation Operation:

  • Drive the vehicle at a vehicle speed of 50 km/h (31 mph) or more for 20 seconds.

Table 1. Vehicle Condition and Fail-safe Function when Malfunction Detected
DTC Code Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
B2282

  • When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle speed is 0 km/h (0 mph), there is no effect on vehicle behavior.

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

 -
B2283

  • The power source mode is changed to off (the hybrid control system is stopped) by pressing the power switch while the vehicle is being driven.

  • With the electrical key transmitter sub-assembly in the cabin, even if a hybrid control system start operation is performed, the hybrid control system does not start.

 Steering lock motor operation is prohibited.
Table 2. Related Data List and Active Test Items
DTC No. Data List and Active Test

B2282

B2283
  • Power Source Control

  • Vehicle Speed Signal

  • Power Supply Condition


  • Combination Meter

  • Vehicle Speed Meter
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • When using the GTS with the power 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). 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 entry and start 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 entry and start system (for Start Function) after confirming that the communication systems are functioning properly.

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

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

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

Tip:

When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

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PROCEDURE


  1. Click here

    READ VALUE USING GTS (VEHICLE SPEED METER)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.


      1. Body Electrical > Combination Meter > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Vehicle Speed Meter Vehicle speed Min.: 0, Max.: 255 Almost same as actual vehicle speed (Speedometer tester) -



      1. Body Electrical > Combination Meter > Data List
        Tester Display
        Vehicle Speed Meter




      Tip:

      Using a speedometer tester, check the actual vehicle speed and the vehicle speed displayed on the GTS.

      OK
      Vehicle speed displayed on the GTS is almost the same as the actual vehicle speed measured using a speedometer tester.
      Result
      Proceed to
      OK
      NG

  2. Click here

    READ VALUE USING GTS (VEHICLE SPEED SIGNAL)


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

    2. Read the Data List according to the display on the GTS.


      1. Body Electrical > Power Source Control > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Vehicle Speed Signal Vehicle being driven or stopped Stop or Run

        Stop: Vehicle stopped

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

        		 -



      1. Body Electrical > Power Source Control > Data List
        Tester Display
        Vehicle Speed Signal




      OK
      The GTS display changes correctly in response to the vehicle condition.
      Result
      Proceed to
      OK
      NG

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    CHECK HARNESS AND CONNECTOR (POWER SOURCE)

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    Result
    Proceed to
    OK
    NG

    • OKClick here
    • NG

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

  4. Click here

    CHECK HARNESS AND CONNECTOR (GROUND)

    Result
    Proceed to
    OK
    NG

    1. Disconnect the K137 certification ECU (smart key ECU assembly) connector.

    2. A002177C53
      *a

      Front view of wire harness connector

      (to Certification ECU (Smart Key ECU Assembly))

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K137-11 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. Click here

    CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - COMBINATION METER ASSEMBLY)


    1. Disconnect the K137 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the K3 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K137-5 (SPD) - K3-19 (+S) Always Below 1 Ω
      K137-5 (SPD) or K3-19 (+S) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Reconnect the K137 certification ECU (smart key ECU assembly) connector.

    2. Reconnect the K3 combination meter assembly connector.

    3. A0020VOC25
      *a

      Component with harness connected

      (Certification ECU (Smart Key ECU Assembly))

      		 - -

      Using an oscilloscope, check the waveform.

      Tester Connection Condition Tool Setting Specified Condition
      K137-5 (SPD) - K137-11 (E) Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph) 5 V/DIV., 20 ms./DIV. Pulse generation
      Tip:

      The wavelength becomes shorter as the vehicle speed increases.

      Result
      Proceed to
      OK
      NG

    • OK

      REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    • NG

      GO TO METER / GAUGE SYSTEM (Speed Signal Circuit)Click here