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SFI SYSTEM Starter Signal Circuit

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DTC Code DTC Name
  Starter Signal Circuit
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DESCRIPTION

While the engine is being cranked, current flows from terminal STAR of the main body ECU to the park/neutral position switch and also flows to terminal STA of the ECM (STA signal).

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WIRING DIAGRAM

Refer to DTC P0617 (Click here).

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INSPECTION PROCEDURE

Note:

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

Tip:

This chart is based on the premise that the engine can crank normally. If the engine cannot crank normally, proceed to Problem Symptoms Table (Click here).

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PROCEDURE


  1. Click here

    READ VALUE USING GTS (STARTER SIGNAL)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

    5. Read the value.

      OK
      Engine Switch Position Starter Signal
      On (IG) Close
      START Open

  2. Click here

    CHECK STARTER RELAY (ST) (POWER SOURCE)


    1. Remove the starter relay (ST) from the engine room relay block.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Starter relay (ST) terminal 2 - Body ground Engine cranking 11 to 14 V
      Starter relay (ST) terminal 1* - Body ground Engine cranking 11 to 14 V

      *: URJ202L-GNTEKC

      Tip:

      The engine does not crank because the relay is not installed.

    3. Reinstall the starter relay (ST).


  3. Click here

    INSPECT STARTER RELAY (ST)


    1. Inspect the starter relay (ST) (Click here).


  4. Click here

    CHECK HARNESS AND CONNECTOR (STARTER RELAY (ST) - BODY GROUND)


    1. Remove the starter relay (ST) from the engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Starter relay (ST) terminal 1 - Body ground Always Below 1 Ω
      Starter relay (ST) terminal 2* - Body ground Always Below 1 Ω

      *: URJ202L-GNTEKC

    3. Reinstall the starter relay (ST).


  5. Click here

    CHECK HARNESS AND CONNECTOR (STARTER RELAY (ST) - PARK/NEUTRAL POSITION SWITCH)


    1. Remove the starter relay (ST) from the engine room relay block.

    2. Disconnect the park/neutral position switch connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Starter relay (ST) terminal 1* - C24-5 (L) Always Below 1 Ω
      Starter relay (ST) terminal 2 - C24-5 (L) Always Below 1 Ω
      Starter relay (ST) terminal 1* or C24-5 (L) - Body ground Always 10 kΩ or higher
      Starter relay (ST) terminal 2 or C24-5 (L) - Body ground Always 10 kΩ or higher

      *: URJ202L-GNTEKC

    4. Reinstall the starter relay (ST).

    5. Reconnect the park/neutral position switch connector.


  6. Click here

    INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY


    1. Inspect the park/neutral position switch assembly (Click here).


  7. Click here

    CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - MAIN BODY ECU)


    1. Disconnect the park/neutral position switch connector.

    2. Disconnect the main body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      C24-4 (B) - E1-8 (STR) Always Below 1 Ω
      C24-4 (B) or E1-8 (STR) - Body ground Always 10 kΩ or higher

    4. Reconnect the park/neutral position switch connector.

    5. Reconnect the main body ECU connector.


  8. Click here

    REPLACE STARTER RELAY (ST)

  9. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (STARTER RELAY (ST) - BODY GROUND)

  10. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. Click here

    REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLYClick here

  12. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  13. Click here

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here

  14. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH)

  15. Click here

    GO TO ENTRY AND START SYSTEMClick here