SFI SYSTEM Starter Signal Circuit

DESCRIPTION



WIRING DIAGRAM

Refer to DTC P0617.

Click here

CAUTION / NOTICE / HINT

Note


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

  • After turning ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Click here

  • When the starter assembly is replaced, the number of starter operations stored in the engine stop and start ECU must be reset. (w/ Stop and Start System)

    Click here

PROCEDURE


  1. CHECK WHETHER ENGINE STARTS


    1. Check if the engine can be cranked.

      Result
      Result Proceed to
      Engine cannot be cranked*1 A
      Engine cannot be cranked*2 B
      Engine can be cranked C

      • *1: for CVT

      • *2: for Manual Transaxle


    B

    READ VALUE USING GTS (STARTER SIGNAL) Click here

    C

    READ VALUE USING GTS (STARTER SIGNAL) Click here

    A

  2. READ VALUE USING GTS (STARTER SIGNAL)


    1. Connect the GTS to DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Check the value displayed on the GTS when the ignition switch is turned to ON and the engine is started.

      OK
      Condition Starter Signal
      Ignition switch ON OFF
      Cranking position ON
      Result
      Result Proceed to
      OK*1 A
      OK*2 B
      NG*1 C
      NG*2 D

      • *1: w/ Entry and Start System

      • *2: w/o Entry and Start System


    B

    CHECK VEHICLE TYPE Click here

    C

    INSPECT PARK/NEUTRAL POSITION SWITCH Click here

    D

    CHECK VEHICLE TYPE Click here

    A

  3. INSPECT ST RELAY


    1. Inspect the ST relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ST RELAY

    OK

  4. CHECK HARNESS AND CONNECTOR (BATTERY - STARTER ASSEMBLY)


    1. Disconnect the B53 starter assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      B53-1 (B) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)

    A00497VC03
    *1 No. 1 Engine Room Relay Block
    *2 ST Relay Holder

    1. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5 (ST relay holder) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - ST RELAY)

    OK

  6. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH - ST RELAY - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))


    1. Disconnect the A58 ECM connector.

    2. Disconnect the B100 park/neutral position switch connector.

    3. Disconnect the F65 certification ECU (smart key ECU assembly) connector.

    4. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-22 (STA) - B100-9 (L) Always Below 1 Ω
      A58-22 (STA) - F65-5 (STAR) Always Below 1 Ω
      A58-22 (STA) - 2 (ST relay holder) Always Below 1 Ω
      A58-22 (STA), B100-4 (N), F65-5(STAR) or 2 (ST relay holder) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)


    1. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (ST relay holder) - Body ground and other terminals Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER ASSEMBLY)


    1. Remove the ST relay from the No. 1 engine room relay block.

    2. Disconnect the B1 starter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (ST relay holder) - B1-1 (SL1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. CHECK VEHICLE TYPE


    1. Check vehicle type.

      Result
      Result Proceed to
      w/ Stop and Start System A
      w/o Stop and Start System B

    B

    INSPECT ST RELAY Click here

    A

  10. INSPECT ST NO. 2 RELAY


    1. Inspect the ST relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ST NO. 2 RELAY

    OK

  11. CHECK HARNESS AND CONNECTOR (BATTERY - STARTER ASSEMBLY)


    1. Disconnect the B99 starter assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      B99-1 (SL2) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  12. CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST NO. 2 RELAY)

    A0049OBC01
    *1 No. 2 Engine Room Relay Block
    *2 ST NO. 2 Relay Holder

    1. Remove the ST relay from the No. 2 engine room relay block.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5 (ST NO. 2 relay holder) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - ST RELAY)

    OK

  13. CHECK HARNESS AND CONNECTOR (ECM - ENGINE STOP AND START ECU - ST NO. 2 RELAY)


    1. Disconnect the A58 ECM connector.

    2. Disconnect the A92 engine stop and start ECU connector.

    3. Remove the ST NO. 2 relay from the No. 2 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-29 (STA) - A92-23 (STA2) Always Below 1 Ω
      A58-22 (STA) - 2 (ST NO. 2 Relay holder) Always Below 1 Ω
      58-29 (STA), 92-23 (STA2) or 2 (ST NO. 2 Relay holder) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. CHECK HARNESS AND CONNECTOR (ECM - ENGINE STOP AND START ECU - PARK/NEUTRAL POSITION SWITCH - IGNITION SWITCH ASSEMBLY)


    1. Disconnect the 58 ECM connector.

    2. Disconnect the A92 engine stop and start ECU connector.

    3. Disconnect the B100 park/neutral position switch connector.

    4. Disconnect the F13 ignition switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A85-23 (NSW) - F13-7 (ST2) Always Below 1 Ω
      A58-23 (NSW) - B100-9 (L) Always Below 1 Ω
      A58-23 (NSW) - A92-28 (CLL) Always Below 1 Ω
      A58-23 (NSW), F13-7 (ST2), B100-9 (L) or A92-28 (CLL) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  15. CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - BODY GROUND)


    1. Remove the ST NO. 2 relay from the No. 2 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (ST NO. 2 relay holder) - Body ground and other terminals Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  16. CHECK HARNESS AND CONNECTOR (ST NO. 2 RELAY - STARTER ASSEMBLY)


    1. Remove the ST NO. 2 relay from the No. 2 engine room relay block.

    2. Disconnect the B99 starter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (ST NO. 2 relay holder) - B99-1 (SL1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  17. INSPECT ST RELAY


    1. Inspect the ST relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ST RELAY

    OK

  18. CHECK HARNESS AND CONNECTOR (BATTERY - STARTER ASSEMBLY)


    1. Disconnect the B53 starter assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      B53-1 (B) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  19. CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)

    A00497VC03
    *1 No. 1 Engine Room Relay Block
    *2 ST Relay Holder

    1. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5 (ST relay holder) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - ST RELAY)

    OK

  20. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH - IGNITION SWITCH ASSEMBLY)


    1. Disconnect the A58 ECM connector.

    2. Disconnect the B100 park/neutral position switch connector.

    3. Disconnect the F13 ignition switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-63 (NSW) - F13-7 (ST2) Always Below 1 Ω
      A58-63 (NSW) - B100-4 (B) Always Below 1 Ω
      A58-63 (NSW), F13-7 (ST2), or B100-4 (B) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  21. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH - ST RELAY)


    1. Disconnect the A58 ECM connector.

    2. Disconnect the B100 park/neutral position switch connector.

    3. Remove the ST relay from the engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-22 (STA) - B100-9 (L) Always Below 1 Ω
      A58-22 (STA) - 2 (ST relay holder) Always Below 1 Ω
      A58-22 (STA), B100-9 (L) or 2 (ST relay holder) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  22. CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)


    1. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (ST relay holder) - Body ground and other terminals Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  23. CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER ASSEMBLY)


    1. Remove the ST relay from the No. 1 engine room relay block.

    2. Disconnect the B1 starter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (ST relay holder) - B1-1 (SL1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  24. INSPECT PARK/NEUTRAL POSITION SWITCH


    1. Inspect the park/neutral position switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH Click here

    OK

  25. CHECK HARNESS AND CONNECTOR (STA SIGNAL CIRCUIT)


    1. Disconnect the A58 ECM connector.

    2. Disconnect the F65 certification ECU (smart key ECU assembly) connector.

    3. Disconnect the B100 park/neutral position switch connector.

    4. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A58-29 (STA) - B100-9 (L) Always Below 1 Ω
      A58-22 (STA) - F65-7 (STA) Always Below 1 Ω
      A58-22 (STA) - 2 (ST relay holder) Always Below 1 Ω
      A58-29 (STA), F65-7 (STA), B100-9 (L4 ) or 2 (ST relay holder) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    CHECK ENTRY AND START SYSTEM

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  26. CHECK VEHICLE TYPE


    1. Check vehicle type.

      Result
      Result Proceed to
      w/ Stop and Start System A
      w/o Stop and Start System B

    B

    INSPECT IGNITION OR STARTER SWITCH ASSEMBLY Click here

    A

  27. INSPECT IGNITION OR STARTER SWITCH ASSEMBLY


    1. Inspect the ignition or starter switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE IGNITION OR STARTER SWITCH ASSEMBLY Click here

    OK

  28. INSPECT PARK/NEUTRAL POSITION SWITCH


    1. Inspect the park/neutral position switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH Click here

    OK

  29. CHECK HARNESS AND CONNECTOR (ST2 SIGNAL CIRCUIT)


    1. Disconnect the A58 ECM connector.

    2. Disconnect the B100 park/neutral position switch connector.

    3. Disconnect the A92 engine stop and start ECU connector.

    4. Disconnect the F13 ignition or starter switch assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F13-7 (ST2) - B100-4 (B) Always Below 1 Ω
      F13-7 (ST2) - A92-6 (CLL) Always Below 1 Ω
      F13-7 (ST2) - A58-23 (NSW) Always Below 1 Ω
      F13-7 (ST2), B100-4 (B), A92-6 (CLL) or A58-23 (NSW) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  30. CHECK HARNESS AND CONNECTOR (STA SIGNAL CIRCUIT)


    1. Disconnect the A58 ECM connector.

    2. Disconnect the A92 engine stop and start ECU connector.

    3. Disconnect the B100 park/neutral position switch connector.

    4. Remove the ST NO. 2 relay from the No. 2 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B100-9 (L) - A92-21 (STA) Always Below 1 Ω
      2 (ST relay holder), B100-9 (L), A92-21 (STA) or A58-29 (STA) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - IGNITION OR STARTER SWITCH ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  31. INSPECT IGNITION OR STARTER SWITCH ASSEMBLY


    1. Inspect the ignition or starter switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE IGNITION OR STARTER SWITCH ASSEMBLY Click here

    OK

  32. INSPECT PARK/NEUTRAL POSITION SWITCH


    1. Inspect the park/neutral position switch.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARK/NEUTRAL POSITION SWITCH Click here

    OK

  33. CHECK HARNESS AND CONNECTOR (ST2 SIGNAL CIRCUIT)


    1. Disconnect the F13 ignition or starter switch assembly connector.

    2. Disconnect the B100 park/neutral position switch connector.

    3. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F13-7 (ST2) - B100-4 (B) Always Below 1 Ω
      F13-7 (ST2) - A58-23 (NSW) Always Below 1 Ω
      F13-7 (ST2), B100-4 (B), or A58-23 (NSW) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  34. CHECK HARNESS AND CONNECTOR (STA SIGNAL CIRCUIT)


    1. Remove the ST relay from the No. 1 engine room relay block.

    2. Disconnect the B69 park/neutral position switch connector.

    3. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B100-9 (L) - A58-29 (STA) Always Below 1 Ω
      2 (ST relay holder), B100-9 (L), or A58-29 (STA) - Body ground and other terminals Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - IGNITION OR STARTER SWITCH ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  35. READ VALUE USING GTS (STARTER SIGNAL)


    1. Connect the GTS to DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Check the value displayed on the GTS when the ignition switch is turned to ON and the engine is started.

      OK
      Condition Starter Signal
      Ignition switch ON OFF
      Engine cranking position ON
      Result
      Result Proceed to
      OK A
      NG*1 B
      NG*2 C

      • *1: w/ Entry and Start System

      • *2: w/o Entry and Start System


    B

    INSPECT CLUTCH START SWITCH ASSEMBLY Click here

    C

    INSPECT IGNITION OR STARTER SWITCH ASSEMBLY Click here

    A

  36. INSPECT ST RELAY


    1. Inspect the ST relay.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ST RELAY

    OK

  37. CHECK HARNESS AND CONNECTOR (BATTERY - STARTER ASSEMBLY)


    1. Disconnect the B53 starter assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      B53-1 (B) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  38. CHECK TERMINAL VOLTAGE (POWER SOURCE OF ST RELAY)


    1. A00497VC03
      *1 No. 1 Engine Room Relay Block
      *2 ST Relay Holder

      Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      5 (ST relay holder) - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - ST RELAY)

    OK

  39. CHECK HARNESS AND CONNECTOR (CLUTCH START SWITCH ASSEMBLY - ST RELAY)


    1. Disconnect the A39 clutch start switch assembly connector.

    2. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A39-1 - 2 (ST relay holder) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  40. CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND)


    1. Remove the ST relay from the No. 1 engine room relay block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 (ST relay holder) - Body ground and other terminals Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  41. CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER ASSEMBLY)


    1. Remove the ST relay from the No. 1 engine room relay block.

    2. Disconnect the B1 starter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      3 (ST relay holder) - B1-1 (SL1) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  42. INSPECT CLUTCH START SWITCH ASSEMBLY


    1. Inspect the clutch start switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CLUTCH START SWITCH ASSEMBLY Click here

    OK

  43. CHECK HARNESS AND CONNECTOR (STA SIGNAL CIRCUIT)


    1. Remove the ST relay from the No. 1 engine room relay block.

    2. Disconnect the F65 certification ECU (smart key ECU assembly) connector.

    3. Disconnect the A39 clutch start switch assembly connector.

    4. Disconnect the A53 engine stop and start ECU connector.*1

    5. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A39-1 - A58-29 (STA) Always Below 1 Ω
      2 (ST relay holder), F65-7 (STA), B69-9 (L), A53-4 (STA) or A58-29 (STA) - Body ground and other terminals*1 Always 10 kΩ or higher
      2 (ST relay holder), F65-7 (STA), B69-9 (L), or A58-29 (STA) - Body ground and other terminals*2 Always 10 kΩ or higher

      • *1: w/ Stop and Start System

      • *2: w/o Stop and Start System

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  44. CHECK HARNESS AND CONNECTOR (STA SIGNAL CIRCUIT)


    1. Disconnect the F65 certification ECU (smart key ECU assembly) connector.

    2. Disconnect the A39 clutch start switch assembly connector.

    3. Disconnect the A53 engine stop and start ECU connector.*1

    4. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F65-5 (STAR) - A58-23 (NSW) Always Below 1 Ω
      F65-5 (STAR) - B69-4 (B) Always Below 1 Ω
      F65-5 (STAR) - A53-6 (CLL)*1 Always Below 1 Ω
      F65-5 (STAR), B69-4 (B), A53-6 (CLL) or A58-23 (NSW) - Body ground and other terminals*1 Always 10 kΩ or higher
      F65-5 (STAR), B69-4 (B) or A58-23 (NSW) - Body ground and other terminals*2 Always 10 kΩ or higher

      • *1: w/ Stop and Start System

      • *2: w/o Stop and Start System

      Result
      Proceed to
      OK
      NG

    OK

    CHECK ENTRY AND START SYSTEM

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  45. INSPECT IGNITION OR STARTER SWITCH ASSEMBLY


    1. Inspect the ignition or starter switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE IGNITION OR STARTER SWITCH ASSEMBLY Click here

    OK

  46. INSPECT CLUTCH START SWITCH ASSEMBLY


    1. Inspect the clutch start switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CLUTCH START SWITCH ASSEMBLY Click here

    OK

  47. CHECK HARNESS AND CONNECTOR (NSW SIGNAL CIRCUIT)


    1. Disconnect the F13 ignition or starter switch assembly connector.

    2. Disconnect the A39 clutch start switch assembly connector.

    3. Disconnect the A53 engine stop and start ECU connector.

    4. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F13-7 (ST2) - A39-2 Always Below 1 Ω
      F13-7 (ST2) - A53-6 (CLL)*1 Always Below 1 Ω
      F13-7 (ST2) - A58-23 (NSW) Always Below 1 Ω
      F13-7 (ST2), A39-2, A53-6 (CLL) or A58-23 (NSW) - Body ground and other terminals*1 Always 10 kΩ or higher
      F13-7 (ST2), A39-2, or A58-23 (NSW) - Body ground and other terminals*2 Always 10 kΩ or higher

      • *1: w/ Stop and Start System

      • *2: w/o Stop and Start System

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  48. CHECK HARNESS AND CONNECTOR (STA SIGNAL CIRCUIT)


    1. Remove the ST relay from the No. 1 engine room relay block.

    2. Disconnect the A39 clutch start switch assembly connector.

    3. Disconnect the A53 engine stop and start ECU connector.*1

    4. Disconnect the A58 ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A39-2 - A58-29 (STA) Always Below 1 Ω
      2 (ST relay holder), A39-1, A53-4 (STA) or A58-29 (STA) - Body ground and other terminals*1 Always 10 kΩ or higher
      2 (ST relay holder), A39-1, or A58-29 (STA) - Body ground and other terminals*2 Always 10 kΩ or higher

      • *1: w/ Stop and Start System

      • *2: w/o Stop and Start System

      Result
      Proceed to
      OK
      NG

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - IGNITION OR STARTER SWITCH ASSEMBLY)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  49. READ VALUE USING GTS (STARTER SIGNAL)


    1. Connect the GTS to DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Check the value displayed on the GTS when the ignition switch is turned to ON and the engine is started.

      OK
      Condition Starter Signal
      Ignition switch ON OFF
      Engine cranking position ON
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - ECM)