LIGHTING SYSTEM, Diagnostic DTC:B2415

DTC Code DTC Name
B2415 Vehicle Speed Sensor Malfunction

DESCRIPTION

The AFS ECU receives signals regarding the front wheel speed from the skid control ECU.

DTC No. DTC Condition Condition Trouble Area
B2415

  • Malfunction in skid control ECU

  • Open or short in vehicle speed sensor circuit

  • Skid control ECU

  • Wire harness or connector

  • AFS ECU

WIRING DIAGRAM

A015YUPE07

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC (VEHICLE STABILITY CONTROL SYSTEM)


    1. Check that vehicle stability control system DTCs are not output Click here.

      Result
      Result Proceed to
      DTC is not output A
      DTC is output B

    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Click here

    A

  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - AFS ECU)


    1. A01606FE01

      Disconnect the A28 AFS ECU connector.

    2. Disconnect the A62 skid control ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A62-10 (FRO) - A28-7 (SPDR) Always Below 1 Ω
      A62-9 (FLO) - A28-6 (SPDL) Always Below 1 Ω
      A28-7 (SPDR) - Body ground Always 10 kΩ or higher
      A28-6 (SPDL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK AFS ECU


    1. A015ZIEE01

      Disconnect the A28 AFS ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A28-6 (SPDL) - Body ground Vehicle is driving at approx. 30 km/h (19 mph)

      0 to 5 V

      Pulse generation

      (see waveform 1)
      A28-7 (SPDR) - Body ground Vehicle is driving at approx. 30 km/h (19 mph)

      0 to 5 V

      Pulse generation

      (see waveform 1)

      1. Waveform 1: Oscilloscope wave

        A0160GJE01
        Item Contents
        Tool setting 2 V/DIV., 2 ms./DIV.
        Vehicle condition Vehicle is driving at approximately 30 km/h (19 mph)
        OK
        Waveform is output as shown in the illustration.
        Result
        Result Proceed to
        OK (When checking from Diagnostic Trouble Code Chart) A
        OK (When checking from Problem Symptoms Table) B
        NG C

    B

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    C

    REPLACE SKID CONTROL ECU ASSEMBLY Click here

    A

    REPLACE AFS ECU Click here