ENTRY AND START SYSTEM(for Start Function), 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.

Tech Tips


  • When the power management control ECU is replaced with a new one and the cable is connected to the negative (-) auxiliary battery terminal, the power source mode changes to on (IG).

  • When the auxiliary battery cable is disconnected and reconnected, the power source returns to the mode it was in before the auxiliary battery cable was disconnected.

DTC No. DTC Detection Condition Trouble Area
B2286 READY signal error inside the power management control ECU.

  • AM2 fuse

  • Power management control ECU

  • Wire harness or connector

WIRING DIAGRAM

A005DVIE12
*a from Auxiliary Battery
*b Power Management Control ECU

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the power switch off, perform either of the following: 1) Turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and vehicle begins, or 2) connect the GTS to the vehicle, select the vehicle type under manual mode, and then enter the following menus:

    for Power Source Control: Body Electrical / Power Source Control / Trouble Codes.

    for Entry&Start: Body Electrical / Entry&Start / Trouble Codes.

  • The entry and start system uses multiplex communication. First perform the inspections in "How to Proceed with Troubleshooting" to confirm that there are no communication malfunctions before proceeding with troubleshooting Click here.

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

  • After performing repairs, perform the operation that fulfills the DTC output confirmation operation, and then confirm that no DTCs are output again.

Tech Tips

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

PROCEDURE


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


    1. Disconnect the L5 and L6 connectors from the power management control ECU.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L5-1 (AM22) - Body ground Always 9.5 to 16 V
      L6-7 (AM21) - Body ground Always 9.5 to 16 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L5-5 (E01) - Body ground Always Below 1 Ω
      L5-6 (E1) - Body ground Always Below 1 Ω
      L6-4 (E12) - Body ground Always Below 1 Ω
      L6-5 (E02) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the power switch on (READY).

    3. After 25 seconds have elapsed, check if the DTC has been set again.

      OK
      DTC B2286 is not output

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE POWER MANAGEMENT CONTROL ECU Click here