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

The main body ECU and the combination meter are connected with a cable and the CAN communication line. DTC B2282 is stored when signals, transmitted through the cable and communication line, do not match.

DTC Code Detection Condition Trouble Area
B2282

When the following conditions are met:


  • Signals between the main body ECU and combination meter are inconsistent.


  • A malfunction is detected in the circuit between the vehicle speed sensor and combination meter.

  • Main body ECU


  • Combination meter assembly


  • Harness or connector

The skid control ECU converts signals from the speed sensor into 4-pulse signals and sends them to the combination meter. After these signals are converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, they are then transmitted to the main body ECU. The main body ECU determines the vehicle speed based on the frequencies of these pulse signals.

DTC Code Detection Condition Trouble Area
B2283

When both of the conditions below are met:


  • Vehicle speed decreases significantly.


  • Vehicle speed does not correspond with engine speed.

  • Main body ECU


  • Combination meter assembly


  • Speed sensor


  • Skid control ECU


  • Harness or connector
A01X3LBE04

WIRING DIAGRAM

A01XBSFE01
*a CAN Line
*b Combination Meter
*c Main Body ECU (Cowl Side Junction Block LH)

PROCEDURE


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


    1. Use the Data List to check if the vehicle speed signal is functioning properly.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed Signal Vehicle speed signal/STOP or RUN

      STOP: Vehicle stopped

      RUN: Vehicle running

      		 -
      Result
      Result Proceed to
      Display on the intelligent tester does not change according to vehicle condition A
      Display on the intelligent tester changes according to vehicle condition B

    B

    REPLACE MAIN BODY ECU

    A

  2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - COMBINATION METER)

    A01X3RQE01
    *1 Front view of wire harness connector: (to Main Body ECU)
    *2 Front view of wire harness connector: (to Combination Meter)

    1. Disconnect the E3 main body ECU connector.

    2. Disconnect the E7 combination meter connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E3-9 (SPD) - E7-4 (+S) Always Below 1 Ω
      E3-9 (SPD) or E7-4 (+S) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE MAIN BODY ECU


    1. Temporarily replace the main body ECU with a new or normally functioning one.

    2. Check whether DTC B2282 and B2283 are output.

      Result
      Result Proceed to
      DTC not output A
      DTC output (w/ Multi-information Display) B
      DTC output (w/o Multi-information Display) C

    A

    END

    B

    REPLACE COMBINATION METER Click here

    C

    REPLACE COMBINATION METER Click here