ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2275

DTC Code DTC Name
B2275 STSW Monitor Malfunction

DESCRIPTION

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

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.

DTC Code DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2275 Power management control ECU internal HV activation request output circuit malfunction or external circuit malfunction (1-trip detection logic*)

  • AM2 fuse

  • Steering lock system

  • Power management control ECU

  • Wire harness or connector

 Turn the power switch on (IG) and wait 10 seconds or more, then start the hybrid control system 3 times.

Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected

  • The power source mode changes to on (READY) even though the hybrid control system is not started.

  • The power source mode does not change to on (READY) even though the hybrid control system is started.

 -
Related Data List and Active Test Items
DTC Data List Item Active Test Item
B2275

    Power Source Control

  • Starter Request Signal

 -

WIRING DIAGRAM

A01FQD1E04

INSPECTION PROCEDURE

Note


  • When using the GTS with the power switch off to troubleshoot:

    Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5 second intervals until communication between the GTS and vehicle begins.

  • The entry and start system (for Start Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting Click here. Troubleshoot the entry and start system (for Start Function) after confirming that the communication systems are functioning properly.

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

  • Before replacing the power management control ECU, refer to the entry and start system (for Start Function) precaution Click here.

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

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the power switch on (IG).

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

      OK
      DTC B2285 is not output.

    NG

    GO TO DTC CHART (DTC B2285) Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE)

    A01FSZZE12
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Power Management Control ECU)

    1. Disconnect the connector 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
      N91-1 (AM22) - Body ground Power switch off 11 to 14 V
      N92-7 (AM21) - Body ground Power switch off 11 to 14 V

    NG

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

    OK

  3. CHECK HARNESS AND CONNECTOR (GROUND)

    A01FSZZE13
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Power Management Control ECU)

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N91-5 (E01) - Body ground Always Below 1 Ω
      N91-6 (E1) - Body ground Always Below 1 Ω
      N92-4 (E12) - Body ground Always Below 1 Ω
      N92-5 (E02) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here