SMART ENTRY AND START SYSTEM (for Start Function), Diagnostic DTC:B2286, P0335

DTC Code DTC Name
B2286 Runnable Signal Malfunction
P0335 Crankshaft Position Sensor "A" Circuit

DESCRIPTION

The power management control ECU receives an engine speed signal and information that indicates whether the engine is running or not. It receives the engine speed signal from the ECM via a direct line, and the information about whether the engine is running is received from the ECM via CAN. If the information sent using these 2 methods is inconsistent, this DTC will be stored.

DTC No. DTC Detection Condition Trouble Area
B2286 Information received by the power management control ECU via a direct line from the ECM and information received from the ECM via CAN is inconsistent.

  • AM2 fuse

  • MAIN fuse

  • Power management control ECU

  • SFI system

  • Wire harness or connector
P0335 Information received by the power management control ECU via a direct line from the ECM and information received from the ECM via CAN is inconsistent. Wire harness or connector

WIRING DIAGRAM

A01EJFPE01

INSPECTION PROCEDURE

Note


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

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

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 (BATTERY - POWER MANAGEMENT CONTROL ECU)


    1. A01EIV4E06
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the D43 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
      D43-1 (AM22) - Body ground Always 9.5 to 16 V
      D43-2 (AM21) - Body ground Always 9.5 to 16 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)

    OK

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


    1. A01EIV4E02
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Power Management Control ECU)

      Disconnect the D43 connector from the power management control ECU.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D43-5 (GND2) - Body ground Always Below 1 Ω
      D43-6 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - BODY GROUND)

    OK

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


    1. Disconnect the A49 connector from the ECM.

      A01EIZKE05

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D42-4 (NE) - A49-53 (NEO) Always Below 1 Ω
      D42-4 (NE) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Power Management Control ECU)

      		 *b

      Front view of wire harness connector

      (to ECM)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - ECM)

    OK

  4. READ VALUE USING GTS (ENGINE CONDITION)


    1. Connect the GTS to the DLC3.

    2. Turn the engine 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 value(s) in the GTS.

      Power Source Control
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Engine Condition Engine condition/Stop or Run

      Stop: Engine stopped

      Run: Engine running

      		 -
      OK
      Stop (engine is stopped) and Run (steering lock is locked) appear on the screen.

    NG

    GO TO SFI SYSTEM

    OK

  5. CHECK POWER MANAGEMENT CONTROL ECU


    1. A01ELISE12
      Text in Illustration
      *1

      Component with harness connected

      (Power Management Control ECU)

      Reconnect the D42 connector to the power management control ECU.

    2. Reconnect the A49 connector to the ECM.

    3. Connect an D42-4 (NE) and body ground.

    4. Check for pulses according to the condition(s) in the table below.

      OK
      Tester Connection Condition Specified Condition
      D42-4 (NE) - Body ground Engine is stopped No pulse generated
      Engine is running Pulse generated (1000 rpm: 200 Hz)

    NG

    GO TO SFI SYSTEM

    OK

    REPLACE POWER MANAGEMENT CONTROL ECU Click here