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

DTC Code DTC Name
B2285 Steering Lock Position Signal Circuit Malfunction

DESCRIPTION

The power management control ECU and the steering lock actuator (steering lock ECU) are connected by a cable and the LIN communication line. This DTC is stored when the cable information of the steering lock position signal and LIN information of the steering lock position signal are inconsistent.

Tech Tips

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

DTC Code DTC Detection Condition Trouble Area
B2285 The cable information of the steering lock position signal and LIN information of the steering lock position signal are inconsistent.

  • AM2 NO. 2 fuse

  • Steering lock actuator assembly (steering lock ECU)

  • Power management control ECU

  • Harness or connector

WIRING DIAGRAM

A0057A8E02

CAUTION / NOTICE / HINT

Note


  • When using the intelligent tester with the engine switch off to troubleshoot: Connect the intelligent tester to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the intelligent tester and vehicle begins.

  • Before performing the inspection, check that there are no problems related to the CAN communication system and LIN communication system.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips

After replacing the steering lock actuator assembly (steering lock ECU), perform the key ID code registration. Refer to the Service Bulletin for the registration procedure.

PROCEDURE


  1. CHECK FOR DTC (LIN COMMUNICATION SYSTEM)


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      LIN communication system DTCs B2287 and B2785 are not output simultaneously.

    NG

    GO TO DTC B2287 Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)


    1. A00557RE02
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the D109 power management control ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      D109-2 (AM21) - Body ground Always 9.5 to 16 V
      D109-1 (AM22) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)


    1. Disconnect the D109 power management control ECU connector.

    2. A0058GOE01
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D109-6 (GND) - Body ground Always Below 1 Ω
      D109-5 (GND2) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU)


    1. A00597FE02
      Text in Illustration
      *1

      Component with harness connected

      (Steering Lock ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D57-4 (SLP1) - Body ground Steering lock locked 10 kΩ or higher
      D57-4 (SLP1) - Body ground Steering lock released Below 1 Ω

    NG

    REPLACE STEERING LOCK ACTUATOR (STEERING LOCK ECU) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - STEERING LOCK ECU)


    1. Disconnect the D109 power management control ECU connector.

      A0055TJE01
      Text in Illustration
      *1

      Rear view of wire harness connector

      (to Power Management Control ECU)

      		 *2

      Front view of wire harness connector

      (to Steering Lock ECU)

    2. Disconnect the D57 steering lock ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D57-4 (SLP1) - D109-3 (SLP) Always Below 1 Ω
      D57-4 (SLP1) or D109-3 (SLP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. READ VALUE USING INTELLIGENT TESTER (STEERING UNLOCK SWITCH)


    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 / Power Source Control / Data List.

    5. According to the display on the intelligent tester, read the Data List.

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

      ON: Steering lock released (Engine switch on (ACC))

      OFF: Steering lock locked (Engine switch off)

      		 -
      OK
      ON (steering lock released) or OFF (steering lock locked) appears on the screen according to the steering lock condition.

    OK

    REPLACE STEERING LOCK ACTUATOR (STEERING LOCK ECU) Click here

    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here