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 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.

Tech Tips

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.

DTC Code DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2282 The vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication (1-trip detection logic*) do not match.

  • AM2 fuse

  • Meter/gauge system

  • Power management control ECU

  • 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 of less than 5 km/h (3 mph) for 20 seconds.
B2283 Vehicle speed signal malfunction detection: Excessive deceleration is detected (1-trip detection logic*)

  • AM2 fuse

  • Meter/gauge system

  • Power management control ECU

  • Wire harness or connector

 Drive the vehicle for 30 seconds or more at a vehicle speed of 50 km/h (31 mph) or more.

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 from the 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 from the 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 operation is prohibited.
Related Data List and Active Test Items
DTC Data List Item Active Test Item

B2282

B2283

    Power Source Control

  • Vehicle Speed Signal

  • Power Supply Condition


    Combination Meter

  • Vehicle Speed Meter

 -

WIRING DIAGRAM

A000RYQE03
*a from Auxiliary Battery
*b Combination Meter Assembly
*c Power Management Control ECU
*d CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the power 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 (for Start Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting Click here. Troubleshoot the entry and start system (for Start Function) after confirming that the communication systems are functioning properly.

  • Before replacing the power management control ECU, refer to the entry and start system (for Start Function) precaution Click here.

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

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

PROCEDURE


  1. READ VALUE USING GTS


    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. Check the Data List for proper functioning of the vehicle speed signal.

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed Meter Vehicle speed/Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Almost same as actual vehicle speed (Speedometer tester) -
      OK
      Vehicle speed displayed on the GTS is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).

    NG

    GO TO METER / GAUGE SYSTEM (Speedometer Malfunction) Click here

    OK

  2. READ VALUE USING GTS


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

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

      Power Source Control
      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

      		 -
      OK
      Stop (vehicle is stopped) and Run (vehicle is running) appear on the screen.

    OK

    GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

    A000RWME01
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Power Management Control ECU)

    1. Disconnect the connector from the power management control ECU.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      N91-1 (AM22) - Body ground Power switch off 11 to 14 V
      N92-7 (AM21) - Body ground Power switch off 11 to 14 V

    NG

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

    OK

  4. CHECK HARNESS AND CONNECTOR (GROUND)

    A000Q3RE01
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N91-5 (E01) - Body ground Always Below 1 Ω
      N91-6 (E1) - Body ground Always Below 1 Ω
      N92-4 (E12) - Body ground Always Below 1 Ω
      N92-5 (E02) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - COMBINATION METER ASSEMBLY)


    1. Disconnect the N93 connector from the power management control ECU.

    2. Disconnect the N40 connector from the combination meter assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N91-16 (SPDI) - N40-19 (+S) Always Below 1 Ω
      N91-16 (SPDI) or N40-19 (+S) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. A000OUPE01
      Text in Illustration
      *a

      Component with harness connected

      (Power Management Control ECU)

      Reconnect the power management control ECU connector.

    2. Reconnect the N40 combination meter assembly connector.

    3. Connect an oscilloscope to terminal N91-16 (SPDI) and N91-6 (E1).

    4. Turn the power switch on (IG).

    5. Check the signal waveform according to the condition(s) in the table below.

      Item Condition
      Tester Connection N91-16 (SPDI) - N91-6 (E1)
      Tool setting 5 V/DIV., 20 ms./DIV.
      Vehicle condition Power 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

      The wavelength becomes shorter as the vehicle speed increases.


    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here

    NG

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