LIGHTING SYSTEM, Diagnostic DTC:B2416

DTC Code DTC Name
B2416 Height Control Sensor Malfunction

DESCRIPTION

The AFS ECU receives signals indicating the height of the vehicle from the suspension control ECU.

DTC Code DTC Detection Condition Trouble Area
B2416

When either condition below is met:


  • Malfunction in the suspension control ECU.

  • Open or short in the suspension control ECU circuit.

  • Suspension control ECU

  • Harness or connector

  • AFS ECU

WIRING DIAGRAM

A01EN1EE02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2416 output does not occur.

    NG

    CHECK FOR DTC (ACTIVE HEIGHT CONTROL SUSPENSION SYSTEM) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  2. CHECK FOR DTC (ACTIVE HEIGHT CONTROL SUSPENSION SYSTEM)


    1. Check for DTCs Click here.

      OK
      DTC output does not occur.

    NG

    GO TO ACTIVE HEIGHT CONTROL SUSPENSION SYSTEM Click here

    OK

  3. READ VALUE USING INTELLIGENT TESTER (AFS ECU)


    1. Using the intelligent tester, read the Data List.

      AFS
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Height Sens Pw Supply Val Height control sensor power supply value / Min.: 0 V, Max.: 5 V Power supply voltage to height control sensor -
      Fr Height Sens Signal Val Front height control sensor signal / Min.: 0 V, Max.: 5 V Height control sensor vehicle height value -
      Rr Height Sens Signal Val Rear height control sensor signal / Min.: 0 V, Max.: 5 V Height control sensor vehicle height value -
      OK
      Power supply voltage is approximately 5 V and height control sensor voltage changes when vehicle height is changed.
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE AFS ECU Click here

    C

    CHECK HARNESS AND CONNECTOR (AFS ECU - SUSPENSION CONTROL ECU) Click here

    A

    REPLACE AFS ECU Click here

  4. CHECK HARNESS AND CONNECTOR (AFS ECU - SUSPENSION CONTROL ECU)


    1. A01EP2PE02

      Disconnect the E91, K31 and K32 ECU connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E91-17 (SHFL) - K31-22 (SHF2) Always Below 1 Ω
      E91-18 (SBR) - K31-23 (SHB5)
      E91-19 (SHRL) - K32-28 (SHR2)
      E91-21 (SGR) - K31-11 (SHG5)
      E91-17 (SHFL) - Body ground Always 10 kΩ or higher
      E91-18 (SBR) - Body ground
      E91-19 (SHRL) - Body ground
      E91-21 (SGR) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK SUSPENSION CONTROL ECU


    1. A01EPY5E02

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K31-23 (SHB5) - K31-11 (SHG5) Engine switch on (IG) 4.5 to 5.5 V
      K31-22 (SHF2) - K31-11 (SHG5) While engine running, height control switch changed from HIGH to NORM, and vehicle height adjustment finished 2.20 to 2.80 V
      K32-28 (SHR2) - K31-11 (SHG5) While engine running, height control switch changed from HIGH to NORM, and vehicle height adjustment finished 2.21 to 2.80 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      K31-11 (SHG5) - Body ground Always Below 1 Ω
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    B

    REPLACE AFS ECU Click here

    C

    REPLACE SUSPENSION CONTROL ECU Click here

    A

    REPLACE AFS ECU Click here