ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2285

DTC Code DTC Name
B2285 Steering Lock Position Signal Circuit Malfunction

DESCRIPTION

This DTC is output when serial communication signals and LIN communication signals in the circuit between the power source control ECU and steering lock actuator (steering lock ECU) are inconsistent.

Tech Tips

When the power source control ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

DTC No. DTC Detection Condition Trouble Area
B2285 Cable and LIN information between the power source control ECU and the steering lock ECU are inconsistent

  • Power source control ECU

  • Steering lock ECU

  • Wire harness or connector

WIRING DIAGRAM

A016273E01

INSPECTION PROCEDURE

Tech Tips

Check the connector connection to the terminal to make sure that there is no abnormally such as a loose connection, deformations etc.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTC Click here.

    2. Check for DTC.

      Result
      Display (DTC output) Proceed to
      "DTC B2285" only A
      "DTC B2287" and/or "DTC 2785" B
      No DTC C

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART (B2287 AND/OR B2785) Click here

    C

    USE SIMULATION METHOD TO CHECK Click here

    A

  2. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Check the Data List for proper functioning of the steering lock function.

      Power Source Control
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Steering Unlock Switch Steering lock condition / ON or OFF

      ON: Steering is unlocked (Engine switch on (ACC))

      OFF: Steering is locked (Engine switch off)

      		 -
      OK
      ON (steering is unlocked) and OFF (steering is locked) appear on the screen.

    NG

    CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - STEERING LOCK ECU) Click here

    OK

    REPLACE POWER SOURCE CONTROL ECU

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CONTROL ECU - STEERING LOCK ECU)


    1. A0160WWE16

      Disconnect the J55 connector from the power source control ECU.

    2. Disconnect the J29 connector from the steering lock ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J55-26 (SLP) - J29-4 (SLP1) Always Below 1 Ω
      J55-26 (SLP) or J29-4 (SLP1) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CONTROL ECU - STEERING LOCK ECU)

    OK

  4. REPLACE POWER SOURCE CONTROL ECU


    1. Replace power source control ECU.


    NEXT

  5. CHECK FOR DTC


    1. Clear the DTC Click here.

    2. Check for DTCs.

      OK
      DTC B2285 is not output.

    NG

    REPLACE STEERING LOCK ECU Click here

    OK

    END (POWER SOURCE CONTROL ECU IS DEFECTIVE)