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 leveling ECU assembly detects malfunctions in the rear height control sensor sub-assembly RH power source or rear height control sensor sub-assembly RH.

DTC No. DTC Detecting Condition Trouble Area

B2416

B241A

  • Malfunction in rear height control sensor sub-assembly RH

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

  • Rear height control sensor sub-assembly RH

  • Headlight leveling ECU assembly

  • Harness or connector

WIRING DIAGRAM

A005M8CE02
*a REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH
*b HEADLIGHT LEVELING ECU ASSEMBLY

CAUTION / NOTICE / HINT

Note

Initialization is necessary when the headlight leveling ECU assembly or rear height control sensor sub-assembly RH is replaced Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. READ VALUE USING INTELLIGENT TESTER (HEIGHT SENS PW SUPPLY VAL)


    1. Using the intelligent tester, 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 Approx. 5.0 V -
      OK
      Normal condition listed above is displayed.

    NG

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

    OK

  3. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


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

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


    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here

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


    1. Disconnect the A43 headlight leveling ECU assembly connector.

    2. Disconnect the N1 rear height control sensor sub-assembly RH connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A43-12 (SBR) - N1-3 (SHB) Always Below 1 Ω
      A43-19 (SHRL) - N1-2 (SHRR) Always Below 1 Ω
      A43-21 (SGR) - N1-1 (SHG) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A43-12 (SBR) - Body ground Always 10 kΩ or higher
      A43-19 (SHRL) - Body ground Always 10 kΩ or higher
      A43-21 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


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

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


    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here