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 combination meter assembly 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 combination meter and the vehicle speed signal sent via CAN communication (1-trip detection logic*1).

  • CAN communication system

  • Certification ECU (smart key ECU assembly)

  • Meter / gauge system

  • 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.

 The vehicle speed got down to 0 km/h within a second after driving at 50 km/h for 10 seconds or when the vehicle speed is 0 km/h and the engine speed has kept above 2000 rpm for at least 300 seconds with engine switch on (IG) and shift position in other than P or N*2. (Cranking time is not included)

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 is inside the vehicle, the engine does not start even though an engine start operation is performed.

 Steering lock motor operation is prohibited.

WIRING DIAGRAM

A005GGHE04
*a from MAIN Fuse
*b Certification ECU (Smart Key ECU Assembly)
*c Combination Meter Assembly
*d : CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • When using the intelligent tester with the engine switch off, perform either of the following: 1) Turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the intelligent tester and vehicle begins, or 2) connect the intelligent tester to the vehicle and select "MANUAL" from the initial screen on the intelligent tester, and then select "KEY REGIST" under Model Code.

  • 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.

  • 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.

Tech Tips

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

Combination Meter


  • Combination Meter

 -

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED METER)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the Data List according to the display on the intelligent tester.

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed Meter

      Vehicle speed

      Min.: 0 (0)

      Max.: 255 (158)

      		 Approximately same as actual vehicle speed (When vehicle is being driven) Unit: km/h (mph)
      OK
      The Data List value is approximately the same as the actual vehicle speed.

    NG

    GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT) Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER (VEHICLE SPEED SIGNAL)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the Data List according to the display on the intelligent tester.

      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.

    NG

    GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

    A005GV2E01
    Text in Illustration
    *a

    Rear view of harness connected

    (to Certification ECU (Smart Key ECU Assembly))

    1. Disconnect the F65 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
      F65-2 (+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)


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F65-11 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the F63 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the F1 combination meter assembly connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      F63-27 (SPD) - F1-6 (+S) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      F63-27 (SPD) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)


    1. Reconnect the F1 combination meter assembly connector.

    2. Reconnect the F63 certification ECU (smart key ECU assembly) connector.

    3. A005GUOE01

      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).

      Text in Illustration
      *a

      Component with harness connected

      (Certification ECU (Smart Key ECU Assembly))

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

        A005KSNE02
        Standard
        Tester Connection Tool Setting Condition Specified Condition
        F63-27 (SPD) - F65-11 (E) 5 V/DIV., 100 ms./DIV. Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph) Correct waveform is as shown in illustration

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

    GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT) Click here