ACTIVE REAR WING SYSTEM, Diagnostic DTC:B1319

DTC Code DTC Name
B1319 Hall IC Supply Voltage Low

DESCRIPTION

This DTC is stored when the Hall IC power supply voltage is low.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1319 Hall IC Supply Voltage Low When the voltage at terminal ECUB of the spoiler control ECU assembly is 9 V or more, the difference in voltage at terminals ECUB and CSV is 13 V or more.

  • Rear spoiler motor assembly

  • Spoiler control ECU assembly

  • Harness or connector

WIRING DIAGRAM

B000WTCE04

PROCEDURE


  1. CHECK CONNECTOR CONNECTION


    1. Check that the connectors are properly connected to the spoiler control ECU assembly and rear spoiler drive gear.

      OK
      Connectors are properly connected.
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT CONNECTORS PROPERLY

    OK

  2. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Active Rear Wing > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK FOR DTC


    1. Raise and retract the active rear wing by manual operation.

      Click here

    2. Check for DTCs.

      Click here


      Body Electrical > Active Rear Wing > Trouble Codes
      OK
      DTC B1319 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  4. CHECK SPOILER CONTROL ECU ASSEMBLY (POWER SUPPLY FOR HALL IC)


    1. B000XOQC05
      *a

      Component with harness connected

      (Spoiler Control ECU Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      X79-4 (CSV) - X79-1 (GND) Engine switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SPOILER CONTROL ECU ASSEMBLY Click here

    OK

  5. CHECK REAR SPOILER MOTOR ASSEMBLY


    1. Disconnect the X79 spoiler control ECU assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X79-4 (CSV) - X79-1 (GND) Always 10 kΩ or higher
      X79-4 (CSV) - X79-9 (CSG) Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE SPOILER CONTROL ECU ASSEMBLY Click here

    NG

  6. CHECK HARNESS AND CONNECTOR (SPOILER CONTROL ECU ASSEMBLY - REAR SPOILER MOTOR ASSEMBLY)


    1. Disconnect the d2 rear spoiler motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X79-4 (CSV) or d2-3 (SSRB) - Body ground Always 10 kΩ or higher
      X79-9 (CSG) or d2-7 (E) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REAR SPOILER MOTOR ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR