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Home >> Toyota >> 2014 >> Prius Two >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (P0300 - P0657)) (Except Plug-In) >> SFI System >> DTC P0505: Idle Control System Malfunction [10/2013 - ] >> Confirmation Driving Pattern
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Confirmation Driving Pattern

Fig 1: Identifying Power Switch / Scantool Operations Graph
GTY373093Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for at least 30 seconds.
  5. Turn the power switch on (IG) and turn the Techstream on [A].
  6. Put the engine in inspection mode (maintenance mode). Refer to INSPECTION MODE PROCEDURE [10/2013 - ] .
  7. Start the engine and idle the vehicle until the coolant temperature reaches 70°C (158°F) or higher with all the accessories switch off [B].
  8. Turn the power switch off and wait for at least 30 seconds.
  9. Disconnect the cable from the negative (-) auxiliary battery terminal.
  10. Reconnect the cable to the negative (-) auxiliary battery terminal.
  11. Turn the power switch on (IG) and turn the Techstream on.
  12. Put the engine in inspection mode (maintenance mode). Refer to INSPECTION MODE PROCEDURE [10/2013 - ] .
  13. Start the engine and rev the engine for 5 seconds with Park (P) selected [C].
  14. Idle the engine for 5 minutes or more [D].

    HINT: 

    In order to keep the idling stable, turn off the A/C and all other electric loads and do not perform any shift operations.

  15. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [E].
  16. Read the pending DTCs.

    HINT: 

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  17. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  18. Input the DTC: P0505.
  19. Check the DTC judgment result.

    HINT: 

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE or N/A, perform steps [F] through [I].
  20. Accelerate the vehicle to 10 km/h (6.25 mph) or more [F].
    WARNING:

    When performing the confirmation driving pattern, obey all speed limits and traffic laws.

  21. Stop the vehicle and rev the engine for 5 seconds with Park (P) selected [G].
  22. Idle the engine for 20 seconds or more [H].
  23. Repeat the steps [F] through [H] 10 times.
  24. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes [I].
  25. Read the pending DTCs.

    HINT: 

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  26. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.
  27. Input the DTC: P0505.
  28. Check the DTC judgment result.
    Techstream Display Description
    NORMAL
    • DTC judgment completed
    • System normal
    ABNORMAL
    • DTC judgment completed
    • System abnormal
    INCOMPLETE
    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions
    N/A
    • Unable to perform DTC judgment
    • Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit

    HINT: 

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
  29. If the judgment result is INCOMPLETE or N/A and no pending DTC is output, perform a universal trip and check for permanent DTCs. Refer to DTC CHECK / CLEAR [10/2013 - ] .

    HINT: 

    • If a permanent DTC is output, the system is malfunctioning.
    • If a permanent DTC is not output, the system is normal.
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