PUSH-BUTTON START, Diagnostic DTC:B2286

DTC Code DTC Name
B2286 Runnable Signal Malfunction

DESCRIPTION

This DTC is stored when a malfunction is detected in the READY signal circuit inside the power management control ECU.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2286 Runnable Signal Malfunction READY signal error inside the power management control ECU. (1-trip detection logic*)

  • AM2 fuse

  • Power management control ECU

  • Wire harness or connector

DTC Output Confirmation Operation:


  • Turn the power switch on (IG) and wait 20 seconds or more.

Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
The power source mode does not change to on (READY). -
Related Data List and Active Test Items
DTC No. Data List and Active Test
B2286

    Power Source Control

  • Ready Signal

WIRING DIAGRAM

A01MSX9E07
*a from Auxiliary Battery
*b Power Management Control ECU

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the power switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • The push-button start uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the push-button start after confirming that the communication systems are functioning properly.

    Click here

  • Before replacing the power management control ECU, refer to push-button start Precaution.

    Click here

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

  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

Tech Tips

When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

PROCEDURE


  1. READ VALUE USING GTS (READY SIGNAL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Power Source Control / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Power Source Control > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Ready Signal Ready signal OFF, ON or Unknown

      OFF: Hybrid control system off

      ON: Hybrid control system on (on (READY))

      Unknown: Malfunction

      		 -

      Body Electrical > Power Source Control > Data List
      Tester Display
      Ready Signal
      OK
      The Data List item changes in accordance with the Ready signal.
      Result
      Proceed to
      OK
      NG

    OK

    GO TO HYBRID CONTROL SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

    Result
    Proceed to
    OK
    NG

    1. A01MSOUC16
      *a

      Front view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the K32 and K33 power management control ECU connectors.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      K32-1 (AM22) - Body ground Power switch off 11 to 14 V
      K33-7 (AM21) - Body ground Power switch off 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR IN CIRCUIT CONNECTED TO POWER SOURCE

    OK

  3. CHECK HARNESS AND CONNECTOR (GROUND)

    Result
    Proceed to
    OK
    NG

    1. Disconnect the K32 and K33 power management control ECU connectors.

    2. A01MSOUC17
      *a

      Front 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
      K32-5 (E01) - Body ground Always Below 1 Ω
      K32-6 (E1) - Body ground Always Below 1 Ω
      K33-4 (E12) - Body ground Always Below 1 Ω
      K33-5 (E02) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CLEAR DTC


    1. Clear the DTCs.


      Body Electrical > Power Source Control > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  5. CHECK FOR DTC


    1. Turn the power switch on (IG).

    2. After 25 seconds have elapsed, check for DTCs.


      Body Electrical > Power Source Control > Trouble Codes
      OK
      DTC B2286 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    END (TEMPORARY CONNECTION FAILURE IS SUSPECTED) Click here

    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here