AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2416

DTC Code DTC Name
B2416 Height Control Sensor Malfunction

DESCRIPTION

The DTC is stored when the headlight leveling ECU assembly detects malfunctions in the rear height control sensor sub-assembly power source or rear height control sensor sub-assembly.

DTC No. DTC Detecting Condition Trouble Area
B2416

  • Malfunction in rear height control sensor sub-assembly

  • Open or short in rear height control sensor sub-assembly power source circuit

  • Rear height control sensor sub-assembly

  • Harness or connector

  • Headlight leveling ECU assembly

WIRING DIAGRAM

A01I5GDE02

INSPECTION PROCEDURE

Note

If either of the following is performed, initialization of the headlight leveling ECU assembly is necessary Click here.


  • Replacement of the headlight leveling ECU assembly.

  • Replacement or removal/installation of the rear height control sensor sub-assembly or work that changes the vehicle height such as replacement of suspension components.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 is not output.

    NG

    READ VALUE USING TECHSTREAM Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. READ VALUE USING TECHSTREAM


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Enter the following menus: Body Electrical / HL Auto Leveling / Data List.

    5. Read the display on the Techstream.

      HL Auto Leveling
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Height Sens Pw Supply Val Height control sensor power supply value / 0.00 to 5.00 V Approx. 5 V -
      OK
      Normal condition listed above is displayed.

    NG

    INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY Click here

    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

  3. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY


    1. Remove the rear height control sensor sub-assembly Click here.

    2. Inspect the rear height control sensor sub-assembly Click here.


    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY Click here

    OK

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


    1. Disconnect the A34 headlight leveling ECU assembly connector.

    2. Disconnect the O17 rear height control sensor sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A34-12 (SBR) - O17-3 (SHB) Always Below 1 Ω
      A34-19 (SHRL) - O17-2 (SHRR) Always Below 1 Ω
      A34-21 (SGR) - O17-1 (SHG) Always Below 1 Ω
      A34-12 (SBR) - Body ground Always 10 kΩ or higher
      A34-19 (SHRL) - Body ground Always 10 kΩ or higher
      A34-21 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here