REMOTE ENGINE STARTER SYSTEM Remote Engine Starter does not Operate

DESCRIPTION

When the remote engine starter ECU receives wireless signals via BERKES and CAN communication line, the remote engine starter ECU transmits the signals to each ECU through the main body ECU (multiplex network body ECU) via the CAN communication line, and starts or stops the engine.

Tech Tips

If all of the following conditions are met, the engine starts using the remote engine start function:


  • The shift lever is in P.

  • All doors are closed.

  • All doors are locked.

  • The engine hood is closed.

  • The engine switch is off.

  • The engine switch is not pressed.

  • The engine speed is not input.

  • Vehicle speed is not input.

  • Brake pedal is not depressed.

  • The theft deterrent system is not alarm sounding state.

The engine will stop when any of the following conditions is met:


  • 10 minutes elapse after the engine is started.

  • The shift lever is moved from P.

  • Any door is opened.

  • Any door is unlocked.

  • The engine hood is opened.

  • The engine switch is turned on (ACC or IG).

  • The engine speed is kept less than 200 rpm for 40 seconds.

  • The engine speed is kept more than 3000 rpm for 3 seconds.

  • Vehicle speed is input (more than 5 km/h (3 mph)).

  • Brake pedal is depressed.

  • The theft deterrent system is alarm sounding state.

WIRING DIAGRAM

A01HNYIE11

INSPECTION PROCEDURE

Note

Before replacing the remote engine starter ECU, refer to Registration Click here.

PROCEDURE


  1. CHECK REMOTE ENGINE STARTER SYSTEM


    1. Check the remote engine starter function Click here.

      Result
      Result Proceed to
      Engine does not start using remote engine start function A
      Engine does not stop using remote engine stop function B

    B

    CHECK ENGINE STOP FUNCTION Click here

    A

  2. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Check if CAN communication DTCs are output Click here.

      Tech Tips

      If any DTCs for CAN communication are output, inspect those DTCs first.

      OK
      CAN communication DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  3. CHECK DTC OUTPUT (HEALTH CHECK)


    1. Connect the Techstream to the DLC3.

    2. Turn the engine switch on (IG).

    3. Enter the following menus: System Select / Health Check.

      Tech Tips

      If any DTCs are output, inspect those DTCs first.

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO DIAGNOSTIC TROUBLE CODE CHART

    A

  4. CHECK DIAGNOSTIC FACTOR INDICATION


    1. Enter diagnostic mode Click here.

    2. Check the engine stop factor.

      OK
      Hazard warning lights do not flash (No abnormal stop in the past).

    NG

    CHECK ENGINE STOP FACTOR (HAZARD WARNING LIGHT FLASHING PATTERN) Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  5. CHECK ENGINE STOP FACTOR (HAZARD WARNING LIGHT FLASHING PATTERN)


    1. Check the engine stop factor.

      Result
      Result Proceed to
      Hazard warning lights flash 3 times (Engine speed is too high or low) [for 2GR-FE] A
      Hazard warning lights flash 3 times (Engine speed is too high or low) [for 2AR-FE] B
      Hazard warning lights flash 7 or 8 times (Brake pedal is pushed or vehicle speed is abnormal) C
      Hazard warning lights flash 9 times (Immobiliser collation discrepancy) D
      Except above (Other engine stop factor) E

    B

    GO TO SFI SYSTEM Click here

    C

    GO TO VEHICLE STABILITY CONTROL SYSTEM Click here

    D

    GO TO ENGINE IMMOBILISER SYSTEM Click here

    E

    CONFIRM OTHER ENGINE STOP FACTOR Click here

    A

    GO TO SFI SYSTEM Click here

  6. CONFIRM OTHER ENGINE STOP FACTOR


    1. Confirm the engine stop factor and the vehicle condition.

      Tech Tips


      • Possible other engine stop factor is listed below.


        • Hazard warning lights are flashed 1 time (engine switch on (ACC or IG))

        • Hazard warning lights are flashed 2 times (any door is unlocked)

        • Hazard warning lights are flashed 5 times (Any door or engine hood is opened)

        • Hazard warning lights are flashed 6 times (Shift lever is not in P)

      OK
      Vehicle condition differs from the engine stop factor.

    NG

    CORRECT VEHICLE CONDITION (OTHER ENGINE STOP FACTOR)

    OK

  7. CHECK ENGINE START FUNCTION (FUEL LEVEL REMAINS IN THE TANK)


    1. Check that the fuel remaining in the tank is enough to start the engine or not.

      OK
      Engine starts with the engine switch operation.

    NG

    ADD FUEL

    OK

  8. CHECK CRANKING FUNCTION (REMOTE ENGINE START FUNCTION)


    1. Perform the remote engine start operation Click here.

    2. Check if the engine cranks using the remote engine start function.

      Result
      Result Proceed to
      Engine cranks A
      Engine does not crank B

    B

    CHECK REMOTE ENGINE STARTER ECU (OUTPUT SIGNAL) Click here

    A

  9. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM


    1. Check the wireless door lock control functions using the electrical key transmitter sub-assembly Click here.

      OK
      Wireless door lock/unlock operates normally.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - REMOTE ENGINE STARTER ECU)


    1. Disconnect the I13 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the I141 remote engine starter ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified condition
      I13-25 (BTX) - I141-4 (BTX) Always Below 1 Ω
      I13-26 (BRX) - I141-3 (BRX) Always Below 1 Ω
      I13-25 (BTX) - Body ground Always 10 KΩ or higher
      I13-26 (BRX) - Body ground Always 10 KΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. CHECK REMOTE ENGINE STARTER ECU (OUTPUT SIGNAL)


    1. A01HNNSE02
      Text in Illustration
      *a

      Component with harness connected

      (Remote Engine Starter ECU)

      Reconnect the I141 remote engine starter ECU connector.

    2. Using an oscilloscope, check the waveform.

      Waveform (Reference)
      Item Content
      Tester Connection I141-3 (BRX) - Body ground
      Tool Setting 5 V/DIV., 20 ms./DIV.
      Condition Remote engine start function is operated
      OK
      The remote engine starter ECU outputs a waveform within 20 seconds after the remote engine start function is activated.

    NG

    REPLACE REMOTE ENGINE STARTER ECU Click here

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  12. CHECK ENGINE STOP FUNCTION


    1. Check if the engine stops when any of the following conditions is met.


      • 10 minutes elapse after the engine is started.

      • The shift lever is moved from P.

      • Any door is opened.

      • Any door is unlocked.

      • The engine hood is opened.

      • The engine switch is turned on (ACC or IG).

      • The engine speed is kept less than 200 rpm for 40 seconds.

      • The engine speed is kept more than 3000 rpm for 3 seconds.

      • Vehicle speed is input (more than 5 km/h (3 mph)).

      • Brake pedal is depressed.

      • The theft deterrent system is alarm sounding state.

      OK
      The engine stops.

    NG

    REPLACE REMOTE ENGINE STARTER ECU Click here

    OK

  13. CHECK WIRELESS DOOR LOCK CONTROL SYSTEM


    1. Check the wireless door lock control functions using the electrical key transmitter sub-assembly Click here.

      OK
      Wireless door lock/unlock operates normally.

    NG

    GO TO WIRELESS DOOR LOCK CONTROL SYSTEM Click here

    OK

    REPLACE REMOTE ENGINE STARTER ECU Click here