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

Tip:

  • When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) battery terminal, the power source mode changes to on (IG).

  • 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.

Detection Item

DTC Detection Condition

Trouble Area

B2282

Vehicle Speed Signal Malfunction

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*).

  • CAN communication system

  • Power management control ECU

  • Meter/gauge system

  • Harness or connector

B2283

Vehicle Speed Sensor Malfunction

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

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

  • Vehicle speed signal malfunction detection 2: Engine speed-linked detection.

  • CAN communication system

  • Power management control ECU

  • Meter/gauge system

  • Harness or connector

  • *: Only output while a malfunction is present and the engine switch is on (IG)

DTC No.

DTC Output Confirmation Operation

B2282

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
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 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 key 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

A214470E13

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.

Tip:
Table 2. Related Data List and Active Test Items

DTC

Data List Item

Active Test Item

B2282

B2283

  • Power Source Control

  • Vehicle Speed Signal

  • Engine Condition

  • Power Supply Condition

  • Starting Control

  • Engine Speed

  • Combination Meter

  • Vehicle Speed 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. According to the display on the intelligent tester, compare the actual vehicle speed with the Data List value.

      Body Electrical > Combination Meter > Data List

      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

      The Data List value is approximately the same as the actual vehicle speed.

      Result

      Result

      OK

      NG
    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. According to the display on the intelligent tester, read the Data List.

      Body Electrical > Power Source Control > Data List

      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 driven) appears on the screen according to the vehicle speed.

      Result

      Result

      OK

      NG
    OK

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

    Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

    1. Disconnect the G39 power management control ECU connector.

    2. A207890C01

      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      G39-2 (AM21) - Body ground

      Always

      9.5 to 14 V

      G39-1 (AM22) - Body ground

      Result

      Result

      OK

      NG
    NG

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

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

    1. A207890C02

      *a

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the G39 power management control ECU connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G39-6 (GND) - Body ground

      Always

      Below 1 Ω

      G39-5 (GND2) - Body ground

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    1. Disconnect the G39 power management control ECU connector.

    2. Disconnect the G3 combination meter assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      G39-23 (SPD) - G3-32 (+S)

      Always

      Below 1 Ω

      G39-23 (SPD) or G3-32 (+S) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK COMBINATION METER ASSEMBLY

    1. Using an oscilloscope, check the vehicle speed input signal waveform from the combination meter at the terminal of the power management control ECU.

      C182533C03

      *a

      Component with harness connected

      (Power Management Control ECU)

      -

      -
      1. C222648E03

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

        Standard Frequency

        Tester Connection

        Tool Setting

        Condition

        Specified Condition

        G39-23 (SPD) - Body ground

        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

        Result

        Result

        OK

        NG
    OK

    REPLACE POWER MANAGEMENT CONTROL ECU

    Click here

    NG

    GO TO METER / GAUGE SYSTEM (SPEED SIGNAL CIRCUIT)

    Click here