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*1 or headlight leveling ECU*2 detects malfunctions in the rear height control sensor LH power source.


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 (w/ Dynamic Headlight Auto Leveling)

  • Headlight leveling ECU assembly (w/ Static Headlight Auto Leveling)

  • Harness or connector
B241A

  • Malfunction in the rear height control sensor LH.

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

  • Rear height control sensor sub-assembly LH

  • Headlight swivel ECU assembly (w/ Dynamic Headlight Auto Leveling)

  • Headlight leveling ECU assembly (w/ Static Headlight Auto Leveling)

  • Harness or connector

WIRING DIAGRAM

B002035E17
w/ Static Headlight Auto Leveling
*a Rear Height Control Sensor Sub-assembly LH
*b Headlight Leveling ECU Assembly
B002035E19
*a Rear Height Control Sensor Sub-assembly LH
*b Headlight Swivel ECU Assembly

CAUTION / NOTICE / HINT

Note

After replacing the headlight leveling ECU*1 or headlight swivel ECU*2 and rear height control sensor LH, initialization of the ECU is necessary Click here.


  • *1: w/ Static Headlight Auto Leveling

  • *2: w/ Dynamic Headlight Auto Leveling

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 or B241A output does not occur.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/ Static Headlight Auto Leveling A
      w/ Dynamic Headlight Auto Leveling B

    B

    READ VALUE USING GTS (REAR HEIGHT CONTROL SENSOR) Click here

    A

  3. READ VALUE USING GTS (REAR HEIGHT CONTROL SENSOR)


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

      HL Auto Leveling
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Height Sens Pw Supply Val Rear height control sensor power supply value / 0 to 5 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.

    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    NG

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


    1. Disconnect the E109 headlight leveling ECU connector.

    2. Disconnect the N7 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
      E109-12 (SBR) - N7-1 (SHB) Always Below 1 Ω
      E109-19 (SHRL) - N7-2 (SHRL) Always Below 1 Ω
      E109-21 (SGR) - N7-3 (SHG) Always Below 1 Ω
      E109-12 (SBR) - Body ground Always 10 kΩ or higher
      E109-19 (SHRL) - Body ground Always 10 kΩ or higher
      E109-21 (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.


    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH Click here

  6. READ VALUE USING GTS (REAR 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

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

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


    1. Disconnect the E101 headlight swivel ECU connector.

    2. Disconnect the N7 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
      E101-18 (SBR) - N7-1 (SHB) Always Below 1 Ω
      E101-19 (SHRL) - N7-2 (SHRL) Always Below 1 Ω
      E109-21 (SGR) - N7-3 (SHG) Always Below 1 Ω
      E101-18 (SBR) - Body ground Always 10 kΩ or higher
      E101-19 (SHRL) - Body ground Always 10 kΩ or higher
      E109-21 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. 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

    A

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH Click here