LIGHTING SYSTEM, Diagnostic DTC:B2416

DTC Code DTC Name
B2416 Height Control Sensor Malfunction

DESCRIPTION

The AFS ECU receives signals regarding the height of the front/rear of the vehicle from the height control sensor.

DTC No. DTC Detection Condition Trouble Area
B2416

  • Malfunction in height control sensor

  • Open or short in vehicle height sensor circuit

  • Height control sensor

  • Wire harness or connector

  • AFS ECU

WIRING DIAGRAM

A0160LYE03

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / AFS / Data List.

    5. Read the display on the intelligent tester.

      AFS (AFS ECU)
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Fr Height Sens Front height sensor signal value / 0 to 5 V Approx. 2.5 V -
      Rr Height Sens Rear height sensor signal value / 0 to 5 V Approx. 2.5 V -
      OK
      Condition sign can be displayed.
      Result
      Result Proceed to
      OK (When checking from Problem Symptoms Table) A
      OK (When checking from Diagnostic Trouble Code Chart B
      NG C

    B

    REPLACE AFS ECU Click here

    C

    CHECK HARNESS AND CONNECTOR (FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH CIRCUIT) Click here

    A

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

  2. CHECK HARNESS AND CONNECTOR (FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH CIRCUIT)


    1. A015YMDE16

      Disconnect the W2 front height control sensor sub-assembly LH connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      W2-1 (SHG) - W2-3 (SHB) Engine switch on (IG) 4.5 to 5.5 V

    NG

    CHECK HARNESS AND CONNECTOR (AFS ECU - FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH CIRCUIT)


    1. A015YMDE17

      Disconnect the Y2 rear height control sensor sub-assembly LH connector.

    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      Y2-1 (SHG) - Y2-3 (SHB) Engine switch on (IG) 4.5 to 5.5 V

    NG

    CHECK HARNESS AND CONNECTOR (AFS ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH) Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (AFS ECU - FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH)


    1. A0161BUE05

      Disconnect the A28 AFS ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A28-2 (SHFL) - W2-2 (SHFL) Always Below 1 Ω
      A28-2 (SHFL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (AFS ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH)


    1. A015ZG9E01

      Disconnect the Y2 rear height control sensor sub-assembly LH connector.

    2. Disconnect the A27 AFS ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A27-9 (SHRL) - Y2-2 (SHRL) Always Below 1 Ω
      A27-9 (SHRL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH


    1. A016354E01

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

    2. Remove the front height control sensor sub-assembly LH.

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

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      W2-2 (SHFL) - W2-1 (SHG) +45° Approx. 4.5 V
      W2-2 (SHFL) - W2-1 (SHG) 0° (Normal) Approx. 2.5 V
      W2-2 (SHFL) - W2-1 (SHG) -45° (Low) Approx. 0.5 V

    NG

    REPLACE FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH Click here

    OK

  7. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH


    1. A0163E9E01

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

    2. Remove the rear height control sensor sub-assembly LH.

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

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Y2-2 (SHRL) - Y2-1 (SHG) +45° Approx. 4.5 V
      Y2-2 (SHRL) - Y2-1 (SHG) 0° (Normal) Approx. 2.5 V
      Y2-2 (SHRL) - Y2-1 (SHG) -45° (Low) Approx. 0.5 V

    NG

    REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH Click here

    OK

    REPLACE AFS ECU Click here

  8. CHECK HARNESS AND CONNECTOR (AFS ECU - FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH)


    1. A0161BUE06

      Disconnect the W2 front height control sensor sub-assembly LH connector.

    2. Disconnect the A28 AFS ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A28-1 (SBF) - W2-3 (SHB) Always Below 1 Ω
      A28-2 (SHFL) - W2-2 (SHFL) Always Below 1 Ω
      A28-17 (SGF) - W2-1 (SHG) Always Below 1 Ω
      A28-1 (SBF) - Body ground Always 10 kΩ or higher
      A28-2 (SHFL) - Body ground Always 10 kΩ or higher
      A28-17 (SGF) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (AFS ECU - FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH)

    OK

    REPLACE AFS ECU Click here

  9. CHECK HARNESS AND CONNECTOR (AFS ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH)


    1. A015ZG9E02

      Disconnect the Y2 rear height control sensor sub-assembly LH connector.

    2. Disconnect the A27 AFS ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A27-10 (SBR) - Y2-3 (SHB) Always Below 1 Ω
      A27-9 (SHRL) - Y2-2 (SHRL) Always Below 1 Ω
      A27-20 (SGR) - Y2-1 (SHG) Always Below 1 Ω
      A27-10 (SBR) - Body ground Always 10 kΩ or higher
      A27-9 (SHRL) - Body ground Always 10 kΩ or higher
      A27-20 (SGR) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (AFS ECU - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH)

    OK

    REPLACE AFS ECU Click here