LIGHTING SYSTEM, Diagnostic DTC:B2416

DTC Code DTC Name
B2416 Height Control Sensor Malfunction

DESCRIPTION

w/o Intelligent Parking Assist System:

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

  • 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

  • Harness or connector

  • Headlight leveling ECU assembly

w/ Intelligent Parking Assist System:

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

  • Malfunction in rear height control sensor sub-assembly RH

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

  • Intelligent parking assist system

  • Rear height control sensor sub-assembly RH

  • Harness or connector

  • Parking assist ECU

  • Headlight leveling ECU assembly

WIRING DIAGRAM

A01J9OFE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 is not output.

    NG

    CHECK VEHICLE CONDITION Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK VEHICLE CONDITION


    1. Check the vehicle condition.

      Result
      Result Proceed to
      w/o Intelligent Parking Assist System A
      w/ Intelligent Parking Assist System B

    B

    CHECK FOR DTC (INTELLIGENT PARKING ASSIST SYSTEM) Click here

    A

  3. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the display on the intelligent tester.

      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 6.25 V Approx. 5.0 V -
      OK
      Normal conditions listed above are displayed.

    NG

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

    OK

  4. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


    1. A01JBTGE01
      Text in Illustration
      *1

      Component without harness connected

      (Rear Height Control Sensor Sub-assembly RH)

      Connect 3 dry cell batteries (1.5 V) in series.

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

    3. Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG).

    4. Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down.

      Standard Voltage
      Tester Connection Condition Specified Condition
      2 (SHRR) - 1 (SHG) +45° (High) 4.05 V
      0° (Normal) 2.25 V
      -45° (Low) 0.45 V

    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here

    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

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


    1. Disconnect the A48 headlight leveling ECU assembly connector.

    2. Disconnect the S3 rear height control sensor sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A48-12 (SBR) - S3-3 (SHB) Always Below 1 Ω
      A48-19 (SHRL) - S3-2 (SHRR) Always Below 1 Ω
      A48-21 (SGR) - S3-1 (SHG) Always Below 1 Ω
      A48-12 (SBR) - Body ground Always 10 kΩ or higher
      A48-19 (SHRL) - Body ground Always 10 kΩ or higher
      A48-21 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH


    1. A01JBTGE01
      Text in Illustration
      *1

      Component without harness connected

      (Rear Height Control Sensor Sub-assembly RH)

      Connect 3 dry cell batteries (1.5 V) in series.

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

    3. Connect a positive (+) lead from the battery to terminal 3 (SHB) and a negative (-) lead from the battery to terminal 1 (SHG).

    4. Measure the voltage between terminals 2 (SHRR) and 1 (SHG) while slowly moving the link up and down.

      Standard Voltage
      Tester Connection Condition Specified Condition
      2 (SHRR) - 1 (SHG) +45° (High) 4.05 V
      0° (Normal) 2.25 V
      -45° (Low) 0.45 V

    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY RH Click here

    OK

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

  7. CHECK FOR DTC (INTELLIGENT PARKING ASSIST SYSTEM)


    1. Check for DTCs Click here.

      OK
      DTC "C1628 Height Control Sensor Circuit Malfunction" is not output.

    NG

    GO TO INTELLIGENT PARKING ASSIST SYSTEM Click here

    OK

  8. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the display on the intelligent tester.

      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 6.25 V Approx. 5.0 V -
      OK
      Normal conditions listed above are displayed.

    NG

    CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - HEADLIGHT LEVELING ECU ASSEMBLY) Click here

    OK

  9. REPLACE PARKING ASSIST ECU


    1. Temporarily replace the parking assist ECU with a new or normally functioning one Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 is not output.

    NG

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    OK

    END

  10. CHECK HARNESS AND CONNECTOR (PARKING ASSIST ECU - HEADLIGHT LEVELING ECU ASSEMBLY)


    1. Disconnect the A48 headlight leveling ECU assembly connector.

    2. Disconnect the L152 parking assist ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A48-12 (SBR) - L152-27 (HBL+)*1 Always Below 1 Ω
      A48-12 (SBR) - L152-30 (HBE+)*2 Always Below 1 Ω
      A48-19 (SHRL) - L152-8 (HO1) Always Below 1 Ω
      A48-21 (SGR) - L152-29 (HGND) Always Below 1 Ω
      A48-12 (SBR) - Body ground Always 10 kΩ or higher
      A48-19 (SHRL) - Body ground Always 10 kΩ or higher
      A48-21 (SGR) - Body ground Always 10 kΩ or higher

      • *1: for LED Type

      • *2: Except LED Type


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. REPLACE PARKING ASSIST ECU


    1. Temporarily replace the parking assist ECU with a new or normally functioning one Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 is not output.

    NG

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    OK

    END