LIGHTING SYSTEM, Diagnostic DTC:B2416, B241A

DTC Code DTC Name
B2416 Height Control Sensor Malfunction
B241A Rear Height Control Sensor

DESCRIPTION

The DTC is stored when the headlight swivel ECU detects malfunctions in the rear height control sensor LH power source or rear height control sensor LH.

DTC Code DTC Detection Condition Trouble Area
B2416

  • Malfunction in the rear height control sensor LH.

  • Open or short in the rear height control sensor LH power source circuit.

  • Rear height control sensor sub-assembly LH

  • Headlight swivel ECU assembly

  • Harness or connector
B241A

  • Malfunction in the rear height control sensor LH.

  • Open or short in the rear height control sensor LH circuit.

WIRING DIAGRAM

A01FT7XE02

INSPECTION PROCEDURE

Note

After replacing the headlight swivel ECU, perform initialization and registration of vehicle information Click here.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B2416 or B241A output does not occur.

    NG

    READ VALUE USING GTS (HEIGHT CONTROL SENSOR) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. READ VALUE USING GTS (HEIGHT CONTROL SENSOR)


    1. Using the GTS, read the Data List Click here.

      AFS
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Height Sens Pw Supply Val Height control sensor power supply value / 0 to 6.25 V 4.7 to 5.2 V -
      Rr Height Sens Signal Val Rear height control sensor signal value / 0 to 5 V Approximately 2.5 V (When vehicle level) The value changes according to the vehicle height.
      OK
      Normal conditions listed above are displayed.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - REAR HEIGHT CONTROL SENSOR LH) Click here

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

  4. CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU - REAR HEIGHT CONTROL SENSOR LH)


    1. Disconnect the A7 headlight swivel ECU connector.

    2. Disconnect the r1 rear height control sensor LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A7-18 (SBR) - r1-3 Always Below 1 Ω
      A7-19 (SHRL) - r1-2 Always Below 1 Ω
      A7-21 (SGR) - r1-1 Always Below 1 Ω
      A7-18 (SBR) - Body ground Always 10 kΩ or higher
      A7-19 (SHRL) - Body ground Always 10 kΩ or higher
      A7-21 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH


    1. Remove the rear height control sensor LH Click here.

    2. Inspect the rear height control sensor LH Click here.

      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH Click here

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here