AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2416

DTC Code DTC Name
B2416 Height Control Sensor Malfunction

DESCRIPTION

This 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

A01G9S8E12

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 GTS Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

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

    5. Read the display on the GTS.

      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 Approximately 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 - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY)


    1. Disconnect the A29 headlight leveling ECU assembly connector.

    2. Disconnect the Q14 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
      A29-12 (SBR) - Q14-3 (SHB) Always Below 1 Ω
      A29-21 (SGR) - Q14-1 (SHG) Always Below 1 Ω
      A29-12 (SBR) - Body ground Always 10 kΩ or higher
      A29-21 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here