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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 63 (Engine Control System (2GR-FE) (Diagnostic Codes (P1604 - P2610) & Circuit Tests))) >> SFI System >> Cranking Holding Function Circuit >> Procedure

Cranking Holding Function Circuit: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK CRANKING 
    1. When starting the engine, check whether the starter motor starts.

      OK

      Engine is cranking.

    NG → See step   2 

    OK → See step   16 

  2. READ VALUE USING TECHSTREAM (STA SIGNAL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch on (IG).
    3. Turn the tester on.
    4. Select the following menu items: Powertrain / Engine and ECT / Data List / Starter Signal.
    5. Check the result when the ignition switch is turned on (IG) and when the engine is started.

      OK

      Display (Starter Signal) Condition
      OFF Ignition switch on (IG)
      ON Engine start

    NG → See step   10 

    OK: Go to next step 

  3. INSPECT ST RELAY 
    1. Remove the ST relay from the engine room relay block.
      Fig 1: Identifying Relay Test Terminals
      GTY100961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      3 - 5 When no battery voltage applied terminals 1 and 2 10 kΩ or higher
      3 - 5 When battery voltage applied terminals 1 and 2 Below 1 Ω
    3. Reinstall the ST relay.

    NG → REPLACE ST RELAY 

    OK: Go to next step 

  4. CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY) 
    1. Disconnect the park/neutral position switch connector.
    2. Remove the ST relay from the engine room relay block.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (check for open)

      Tester Connection Condition Specified Condition
      B5-5 - ST relay terminal (2) Always Below 1 Ω

      Standard resistance (check for short)

      Tester Connection Condition Specified Condition
      B5-5 or ST relay terminal (2) - Body ground Always 10 kΩ or higher
    4. Reconnect the park/neutral position switch connector.
    5. Reinstall the ST relay.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK/NEUTRAL POSITION SWITCH - ST RELAY) 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (ST RELAY - BODY GROUND) 
    1. Remove the ST relay from the engine room relay block.
      Fig 2: Identifying St Relay From The Engine Room Relay Block
      GTY299661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      ST relay terminal (1) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 Engine Room Relay Block
      *2 ST Relay
    3. Reinstall the ST relay to the engine room relay block.

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

    OK: Go to next step 

  6. INSPECT TERMINAL VOLTAGE (ST RELAY TERMINAL) 
    1. Remove the ST relay from the engine room relay block.
      Fig 3: Identifying St Relay From The Engine Room Relay Block
      GTY299661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Condition Specified Condition
      ST relay terminal (5) - Body ground Always 9 to 14 V
      TEXT IN ILLUSTRATION

      *1 Engine Room Relay Block
      *2 ST Relay
    3. Reinstall the ST relay to the engine room relay block.

    NG → See step   9 

    OK: Go to next step 

  7. INSPECT STARTER ASSEMBLY 
    1. Inspect the starter assembly, refer to INSPECTION .

    NG → See step   17 

    OK: Go to next step 

  8. CHECK HARNESS AND CONNECTOR (ST RELAY - STARTER ASSEMBLY) 
    1. Remove the ST relay from the engine room relay block.
    2. Disconnect the starter connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (check for open)

      Tester Connection Condition Specified Condition
      ST relay terminal (3) - B12-1 Always Below 1 Ω

      Standard resistance (check for short)

      Tester Connection Condition Specified Condition
      ST relay terminal (3) or B12-1 - Body ground Always 10 kΩ or higher
    4. Reconnect the starter connector.
    5. Reinstall the ST relay.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (ST RELAY - STARTER ASSEMBLY) 

    OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - STARTER ASSEMBLY) 

  9. INSPECT FUSIBLE LINK (ST FUSE) 
    1. Remove the fusible link from the engine room relay block.
      Fig 4: Identifying Fusible Link From The Engine Room Relay Block
      GTY301277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      Fusible link Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *1 Engine Room Relay Block
    3. Reinstall the fusible link.

    NG → REPLACE FUSIBLE LINK 

    OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - STARTER RELAY) 

  10. CHECK ECM (STAR AND STSW VOLTAGE) 
    1. Measure the voltage according to the value(s) in the table below.
      Fig 5: Identifying ECM Star And Stsw Voltage Connector
      GTY296164Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage

      Tester Connection Condition Specified Condition
      B49-31 (STAR) - Body ground Always 9 to 14 V
      D60-30 (STSW) - Body ground Always 9 to 14 V
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (ECM)

      Result

      Terminal STAR Terminal STSW Proceed to
      9 to 14 V 9 to 14 V A
      0 V 9 to 14 V B
      0 V 0 V C

    B → See step   18 

    C → See step   15 

    A: Go to next step 

  11. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Inspect the park/neutral position switch.
      Fig 6: Identifying Park/Neutral Position Switch
      GTY304273Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the park/neutral position switch connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Shift Position Tester Connection Specified Condition
      P 2 - 6, 4 - 5 Below 1 Ω
      R 1 - 2 Below 1 Ω
      N 2 - 9, 4 - 5 Below 1 Ω
      D 2 - 7 Below 1 Ω
      2 2 - 3 Below 1 Ω
      L 2 - 8 Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Park/Neutral Position Switch)
      RESULT:

      Result Proceed To
      OK A
      NG (with U151E) B
      NG (with U151F) C
    4. Reconnect the park/neutral position switch connector.

    B → See step   19 

    C → See step   21 

    A: Go to next step 

  12. CHECK HARNESS AND CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH) 
    1. Disconnect the ECM connector.
    2. Disconnect the park/neutral position switch connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (check for open)

      Tester Connection Condition Specified Condition
      D60-10 (STA) - B5-5 Always Below 1 Ω

      Standard resistance (check for short)

      Tester Connection Condition Specified Condition
      D60-10 (STA) or B5-5 - Body ground Always 10 kΩ or higher
    4. Reconnect the ECM connector.
    5. Reconnect the park/neutral position switch connector.

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

    OK: Go to next step 

  13. INSPECT RELAY (ST CUT RELAY) 
    1. Remove the ST CUT relay from the engine room relay block.
      Fig 7: Identifying Relay Test Terminals
      GTY100961Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance

      Tester Connection Condition Specified Condition
      3 - 5 When no battery voltage applied terminals 1 and 2 10 kΩ or higher
      3 - 5 When battery voltage applied terminals 1 and 2 Below 1 Ω
    3. Reinstall the ST CUT relay.

    NG → REPLACE RELAY 

    OK: Go to next step 

  14. INSPECT TERMINAL VOLTAGE (ST CUT RELAY TERMINAL) 
    1. Remove the ST CUT relay from the engine room relay block.
      Fig 8: Identifying ST CUT Relay
      GTY299383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage

      Tester Connection Switch Condition Specified Condition
      2 - Body ground Ignition switch on (IG) 9 to 14 V
      TEXT IN ILLUSTRATION

      *1 Engine Room Relay Block
      *2 ST CUT Relay
    4. Reinstall the ST CUT relay.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (ST CUT RELAY - IG2 RELAY) 

    OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (ST CUT RELAY - BODY GROUND) 

  15. CHECK HARNESS AND CONNECTOR (ECM - MAIN BODY ECU) 
    1. Disconnect the ECM connector.
    2. Disconnect the main body ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (check for open)

      Tester Connection Condition Specified Condition
      D60-30 (STSW) - D10-4 (STSW) Always Below 1 Ω

      Standard resistance (check for short)

      Tester Connection Condition Specified Condition
      D60-30 (STSW) or D10-4 (STSW) - Body ground Always 10 kΩ or higher
    4. Reconnect the ECM connector.
    5. Reconnect the main body ECU connector.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - MAIN BODY ECU) 

    OK → See step   20 

  16. CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS 
  17. REPLACE STARTER ASSEMBLY. Refer to  COMPONENTS 
  18. REPLACE ECM. Refer to  COMPONENTS 
  19. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY. Refer to  COMPONENTS 
  20. CHECK SMART KEY SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
  21. REPLACE PARK/NEUTRAL POSITION SWITCH. Refer to  COMPONENTS 
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