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Home >> Lexus >> 2010 >> IS 250C Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control (Diagnostic Codes (P0171-P062F) >> SFI System >> DTC P0617: Starter Relay Circuit High >> Procedure

DTC P0617: Starter Relay Circuit High: Procedure

  1. READ VALUE USING TECHSTREAM (STARTER SIGNAL) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Engine / Data List / Starter Signal.
    5. Read the value displayed on the Techstream when the engine switch is turned on (IG) and the engine is started.

      OK

      Condition Techstream Display
      Engine switch on (IG) Close (Starter signal OFF)
      Engine started Open (Starter signal ON)

      Result

      Result Proceed to
      OK A
      NG (Automatic transmission models) B
      NG (Manual transmission models) C

    C → See step   7 

    B → See step   2 

    A → See step   13 

  2. INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Inspect the park/neutral position switch assembly. Refer to INSPECTION .

      Result

      Result Proceed to
      NG A
      OK B

    B → See step   5 

    A: Go to next step 

  3. REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY 
    1. Replace the park/neutral position switch assembly. Refer to REMOVAL .

    NEXT: Go to next step 

  4. CHECK WHETHER DTC OUTPUT RECURS 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.
    5. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    6. Enter the following menus: Powertrain / Engine / Trouble Codes.
    7. Read the DTCs.

      Result

      Result Proceed to
      DTC P0617 is output A
      DTC is not output B

    B → END 

    A: Go to next step 

  5. REPAIR OR REPLACE HARNESS OR CONNECTOR (STARTER SIGNAL CIRCUIT) 
    1. Repair or replace harness or connector (park/neutral position switch assembly - ECM - STARTER relay).

    NEXT: Go to next step 

  6. CHECK WHETHER DTC OUTPUT RECURS 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.
    5. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    6. Enter the following menus: Powertrain / Engine / Trouble Codes.
    7. Read the DTCs.

      Result

      Result Proceed to
      DTC P0617 is output A
      DTC is not output B

    B → END 

    A → See step   14 

  7. INSPECT RELAY (ST CUT RELAY) 
    1. Remove the ST CUT relay from the engine room relay block No. 2.
      Fig 1: Inspecting A/F Relay
      GTY100984Courtesy 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 No battery voltage applied across terminals 1 and 2 10 kΩ or higher
      3 - 5 Battery voltage applied across terminals 1 and 2 Below 1 Ω
    3. Reinstall the ST CUT relay.

    NG → REPLACE RELAY (ST CUT RELAY) 

    OK: Go to next step 

  8. READ VALUE USING TECHSTREAM (STA SIGNAL VOLTAGE) 
    1. Disconnect the clutch pedal switch connector.
      Fig 2: Identifying Clutch Pedal Switch Connector
      GTY255133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the Techstream to the DLC3.
    3. Turn the engine switch on (IG).
    4. Turn the Techstream on.
    5. Enter the following menus: Powertrain / Engine / Data List / Starter Signal.
    6. Read the value displayed on the Techstream when the engine switch is turned on (IG).
      TEXT IN ILLUSTRATION

      *1 Front view of wire harness connector
      (to Clutch Pedal Switch)
    7. Reconnect the clutch pedal switch connector.

      Result

      Result Proceed to
      Open (Starter Signal ON) A
      Close (Starter Signal OFF) B

    B → See step   11 

    A: Go to next step 

  9. REPAIR OR REPLACE HARNESS OR CONNECTOR (STARTER SIGNAL CIRCUIT) 
    1. Repair or replace harness or connector (power source control ECU - clutch pedal switch - ST CUT relay).

    NEXT: Go to next step 

  10. CHECK WHETHER DTC OUTPUT RECURS 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.
    5. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    6. Enter the following menus: Powertrain / Engine / Trouble Codes.
    7. Read the DTCs.

      Result

      Result Proceed to
      DTC P0617 is output A
      DTC is not output B

    B → END 

    A → See step   15 

  11. REPAIR OR REPLACE HARNESS OR CONNECTOR (STARTER SIGNAL CIRCUIT) 
    1. Repair or replace harness or connector (clutch pedal switch - ECM - STARTER relay).

    NEXT: Go to next step 

  12. CHECK WHETHER DTC OUTPUT RECURS 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs.
    5. Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
    6. Enter the following menus: Powertrain / Engine / Trouble Codes.
    7. Read the DTCs.

      Result

      Result Proceed to
      DTC P0617 is output A
      DTC is not output B

    B → END 

    A → See step   14 

  13. CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS 
  14. REPLACE ECM. Refer to  REMOVAL 
  15. REPLACE POWER SOURCE CONTROL ECU. Refer to  REMOVAL 
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