ACTIVE REAR WING SYSTEM, Diagnostic DTC:B1311

DTC Code DTC Name
B1311 Hall IC Pulse Sensor Main or Sub

DESCRIPTION

This DTC is stored when a malfunction of either Hall IC (Hall IC1 or Hall IC2) is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area
B1311 Hall IC Pulse Sensor Main or Sub When the rear spoiler motor assembly is operating, a pulse signal of 20 edges or more is received from either Hall IC (Hall IC1 or Hall IC2) but a pulse signal is not received from the other Hall IC.

  • Foreign object

  • Rear spoiler motor assembly

  • Spoiler control ECU assembly

  • Harness or connector

WIRING DIAGRAM

B004B8ZE05

CAUTION / NOTICE / HINT

CAUTION:

Be careful not to get pinched by the active rear wing assembly when the active rear wing is operating.

PROCEDURE


  1. CHECK FOR FOREIGN OBJECT


    1. Check that no foreign objects are restricting active rear wing operation.

      OK
      No foreign objects.
      Result
      Proceed to
      OK
      NG

    NG

    REMOVE FOREIGN OBJECT

    OK

  2. CHECK CONNECTOR CONNECTION


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

      OK
      Connectors are properly connected.
      Result
      Proceed to
      OK
      NG

    NG

    CONNECT CONNECTORS PROPERLY

    OK

  3. CLEAR DTC


    1. Clear the DTCs.

      Click here


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

    NEXT

  4. 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 B1311 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  5. CHECK REAR SPOILER MOTOR ASSEMBLY


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Active Rear Wing / Active Test.

    5. Perform the Active Test to raise or retract the active rear wing.

      Note


      • Before performing the Active Test, check that "Init" is displayed for the Data List item "Initialization Status". If "Init" is not displayed, initialize the active rear wing system.

        Click here

      • While performing the Active Test, if the active rear wing is stopped during an operation, it is necessary to perform initialization.

        Click here


      Body Electrical > Active Rear Wing > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Wing Extend Active rear wing rise operation OFF/ON -
      Wing Fold Active rear wing retract operation OFF/ON -

      Body Electrical > Active Rear Wing > Active Test
      Tester Display
      Wing Extend

      Body Electrical > Active Rear Wing > Active Test
      Tester Display
      Wing Fold

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

      B004C2OC01
      *a

      Component with harness connected

      (Spoiler Control ECU Assembly)

      		 *b Waveform 1
      Tester Connection Condition Tool Setting Specified Condition
      X79-5 (CS1) - X79-9 (CSG) Active rear wing rise or retract operation being performed 5 V/DIV., 20 ms./DIV.

      Pulse generation

      (Waveform 1)

      (Below 1 V ←→ 9.5 to 13.33 V)
      X79-17 (CS2) - X79-9 (CSG) Active rear wing rise or retract operation being performed 5 V/DIV., 20 ms./DIV.

      Pulse generation

      (Waveform 1)

      (Below 1 V ←→ 9.5 to 13.33 V)

      Note

      The waveform shown in the illustration is an example for reference only. Noise, chattering, etc. are not shown.

      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 X79 spoiler control ECU assembly connector.

    2. Disconnect the d2 rear spoiler motor assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X79-5 (CS1) - d2-2 (PLS) Always Below 1 Ω
      X79-5 (CS1) or d2-2 (PLS) - Body ground Always 10 kΩ or higher
      X79-17 (CS2) - d2-6 (PLS2) Always Below 1 Ω
      X79-17 (CS2) or d2-6 (PLS2) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK SPOILER CONTROL ECU ASSEMBLY


    1. B004CF2C06
      *a

      Component with harness connected

      (Spoiler Control ECU Assembly)

      Disconnect the d2 rear spoiler motor assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      X79-4 (CSV) - X79-5 (CS1) Power switch on (IG) 11 to 14 V
      X79-9 (CSG) - X79-17 (CS2) Power switch on (IG) 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REAR SPOILER MOTOR ASSEMBLY Click here

    NG

    REPLACE SPOILER CONTROL ECU ASSEMBLY Click here