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DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction (07/2015 -): Procedure

  1. READ VALUE USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Combination Meter / Data List.
    5. Read the Data List according to the display on the Techstream.
      COMBINATION METER

      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) -

      OK

      Vehicle speed displayed on the Techstream is almost the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).

    Result:  NG

    NG 

    GO TO METER / GAUGE SYSTEM (Speedometer Malfunction) 

    (Refer to Speedometer Malfunction (07/2015 -) )

    Result:  OK

    OK 

    See step  2

  2. READ VALUE USING TECHSTREAM 
    1. Enter the following menus: Body Electrical / Power Source Control / Data List.
    2. Read the Data List according to the display on the Techstream.
      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

      On the Techstream screen, the display changes between Stop and Run as shown in the chart above.

    Result:  OK

    OK 

    GO TO METER / GAUGE SYSTEM 

    (Refer to HOW TO PROCEED WITH TROUBLESHOOTING (07/2015 -) )

    Result:  NG

    NG 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE) 

    See step  1

    Result:  NG

    NG 

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

    Result:  OK

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (GROUND) 

    See step  2

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - COMBINATION METER ASSEMBLY) 
    1. Disconnect the H56 certification ECU (smart key ECU assembly) connector.
    2. Disconnect the H14 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H56-27 (SPD) - H14-19 (+S) Always Below 1 Ω
      H56-27 (SPD) or H14-19 (+S) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    See step  7

    Result:  OK

    OK 

    See step  6

  6. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 
    1. Reconnect the H56 certification ECU (smart key ECU assembly) connector.
      GTY624378Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Certification ECU (Smart Key ECU Assembly)      		 - -
    2. Reconnect the H14 combination meter assembly connector.
    3. Connect an oscilloscope to terminal H56-27 (SPD) and A36-11 (E).
    4. Turn the engine switch on (IG).
    5. Check the signal waveform according to the condition(s) in the table below.
      Item Condition
      Tester Connection H56-27 (SPD) - A36-11 (E)
      Tool Setting 5 V/DIV., 20 ms./DIV.
      Condition Engine switch on (IG), vehicle being driven at approx. 5 km/h (3 mph)

      OK

      The waveform is similar to that shown in the illustration.

      HINT: 

      When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows.

    Result:  OK

    OK 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) 

    (Refer to REMOVAL (07/2015 -) )

    Result:  NG

    NG 

    GO TO METER / GAUGE SYSTEM (Speed Signal Circuit) 

    (Refer to Speed Signal Circuit (07/2015 -) )

  7. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - JUNCTION CONNECTOR) 
    1. Disconnect the H115 junction connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H14-19 (+S) - H115-21 Always Below 1 Ω
      H14-19 (+S) - Body ground Always 10 kΩ or higher

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result:  OK

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - JUNCTION CONNECTOR) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H56-27 (SPD) - H114-13 Always Below 1 Ω
      H56-27 (SPD) - Body ground Always 10 kΩ or higher

    Result:  OK

    OK 

    REPLACE JUNCTION CONNECTOR 

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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