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Home >> Toyota >> 2012 >> Prius Two >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 138 (Auto Headlight Beam Level Control System (Plug-In) (Diagnostic Codes & Circuit Tests)) >> Automatic Headlight Beam Level Control System >> DTC B2416: Height Control Sensor Malfunction >> Procedure
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DTC B2416: Height Control Sensor Malfunction: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    2. Check for DTCs. Refer to DTC CHECK / CLEAR .

      OK

      DTC B2416 is not output.

    NG → See step   2 

    OK → See step   7 

  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 Rear height control sensor power supply value / 0.00 to 5.00 V Approx. 5.0 V -

      OK

      Normal condition listed above is displayed.

    NG → See step   3 

    OK → See step   6 

  3. INSPECT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY 
    1. Remove the rear height control sensor sub-assembly. Refer to REMOVAL .
    2. Inspect the rear height control sensor sub-assembly. Refer to INSPECTION .

      OK

      Rear height control sensor sub-assembly is normal.

    NG → See step   5 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING ECU ASSEMBLY - REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY) 
    1. Disconnect the A96 headlight leveling ECU assembly connector.
    2. Disconnect the S23 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
      A96-12 (SBR) - S23-3 (SHB) Always Below 1 Ω
      A96-21 (SGR) - S23-1 (SHG) Always Below 1 Ω
      A96-12 (SBR) - Body ground Always 10 kΩ or higher
      A96-21 (SGR) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   6 

  5. REPLACE REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY. Refer to  REMOVAL 
  6. REPLACE HEADLIGHT LEVELING ECU ASSEMBLY. Refer to  REMOVAL 
  7. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING