SFI SYSTEM(w/ Canister Pump Module), Diagnostic DTC:P319000, P319100

DTC Code DTC Name
P319000 Poor Engine Power
P319100 Engine does not Start

DESCRIPTION

The ECM receives signals from the hybrid vehicle control ECU such as the requested engine torque, target engine speed and engine cranking status, and controls the engine output based on the target engine speed and requested torque.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P319000 Poor Engine Power

When all of the following conditions are met (1 trip detection logic):


  • The engine speed is 650 rpm or more (varies depending on the engine coolant temperature).

  • Engine torque requested by the hybrid vehicle control ECU exceeds a certain value.

  • The hybrid vehicle control ECU judges that the engine has started.

  • The fuel tank is not empty.

  • Communication between the hybrid vehicle control ECU and ECM is normal.

  • The actual engine torque is less than 20% of the requested engine torque for 6 seconds, or until the crankshaft rotates 100 times (whichever takes longer, differs depending on the engine coolant temperature).

  • Intake system

  • Throttle body with motor assembly

  • Fuel system

  • Engine

  • Mass air flow meter sub-assembly

  • Out of fuel

  • Engine coolant temperature sensor

  • Crankshaft position sensor

  • VVT sensor

  • EGR valve assembly

  • PCV valve and hose

  • PCV hose connections

  • ECM

 Comes on DTC stored SAE: P3190
P319100 Engine does not Start

When all of the following conditions are met (1 trip detection logic):


  • The engine speed is 650 rpm or more (varies depending on the engine coolant temperature).

  • The fuel tank is not empty.

  • Communication between the hybrid vehicle control ECU and ECM is normal.

  • After the hybrid vehicle control ECU sends the engine start request signal, it does not detect engine start (generation of engine torque) for 6 seconds, or until the crankshaft rotates 100 times (whichever takes longer, differs depending on the engine coolant temperature).

  • Intake system

  • Throttle body with motor assembly

  • Fuel system

  • Engine

  • Mass air flow meter sub-assembly

  • Out of fuel

  • Engine coolant temperature sensor

  • Crankshaft position sensor

  • VVT sensor

  • EGR valve assembly

  • ECM

 Comes on DTC stored SAE: P3191

MONITOR DESCRIPTION


  1. The ECM receives signals such as requested engine torque, target engine speed and engine cranking status from the hybrid vehicle control ECU.

  2. The ECM controls engine start and stop and the throttle valve angle based on the signals received from the hybrid vehicle control ECU.

  3. The ECM receives the actual engine torque calculated by the hybrid vehicle control ECU based on the generator torque.

  4. When the actual engine torque is less than 20% of the requested engine torque*, the ECM judges that the engine output is abnormal and stores DTC P319000.

    (The engine may not have started in the above situation.)


    • *: Requested torque = Requested Engine Torque (kW) / HV Target Engine Speed (rpm) x 9549

  5. If the ECM does not detect engine start torque (actual engine torque) even though it has received an engine start request and started the engine, it stores DTC P319100.

    Tech Tips


    • When DTCs P319000, P319100 and P319300 are output, the engine may be stopped due to the engine condition.

      At this time, after adding fuel or performing repairs, clear the DTCs. Then turn the power switch off to return to the normal condition.

    • When this DTC is output and the engine is stopped, the HV battery cannot be charged since the vehicle is driven with the motor only. If the vehicle continues to be driven under this condition, the HV battery will be come depleted and the power switch will not be able to be turned on (READY).

    • When DTC P319000 or P319100 is stored, the engine torque has dropped by 80% or the engine cannot be started. If any DTCs that indicate malfunctioning of engine related parts are stored at the same time, repair the malfunctioning parts first.

    • If engine knock is detected due to mechanical noise or a knock control sensor being loose, the ignition timing (Knock F/B Value, Knock Correct Learn Value) may be excessively retarded and DTC P319000 may be stored.

      Relevant Data List Items:

      ECM (Powertrain / Engine / Data List)
      HV Target Engine Speed Engine Speed Requested Engine Torque Actual Engine Torque
      Throttle Position Command Throttle Position Sensor No.1 Voltage Calculate Load Coolant Temperature
      Short FT B1S1, B2S1 Long FT B1S1, B2S1 Target EGR Valve Position No.1 Ignition Timing Cylinder #1
      Knock F/B Value Knock Correct Learn Value - -
      Hybrid Vehicle Control ECU (Powertrain / Hybrid Control / Data List)
      Target Engine Revolution Engine Speed Target Engine Power Coolant Temperature
      Engine Idling Request - - -

MONITOR STRATEGY

Frequency of Operation Continuous

CONFIRMATION DRIVING PATTERN

Note

If the MIL or a master warning light illuminates, immediately end the confirmation driving pattern. If DTCs P319000, P319100 and P319300 are output and the engine is stopped, the HV battery will no longer be chargeable and the distance that the vehicle can be driven will be limited.

B004XIZE21
*1 40 km/h [Engine running]
*2 Power Switch on (READY)
*3 Total engine operation time of 10 minutes or more

  1. Apply the parking brake firmly.

  2. Connect the GTS to the DLC3.

  3. Turn the power switch on (IG).

  4. Turn the GTS on.

  5. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  6. Turn the power switch off and wait for at least 30 seconds.

  7. Turn the power switch on (READY).

  8. Turn the GTS on.

  9. Fully depress the accelerator pedal for 10 seconds with the vehicle stopped, park (P) selected and the brake pedal depressed [A].

    Note

    As soon as the engine starts, release the accelerator pedal.

  10. Release the parking brake.

  11. Drive the vehicle at an average of approximately 40 km/h (25 mph) or more until the total engine operation time is 10 minutes or more [B].

    CAUTION:

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

    Tech Tips


    • It is not necessary to maintain the vehicle speed at 40 km/h (25 mph) throughout the road test.

    • If the engine stops, further depress the accelerator pedal to restart the engine.

  12. Enter the following menus: Powertrain / Engine / Trouble Codes [C].

  13. Read the pending DTCs.

    Tech Tips


    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  14. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  15. Input the DTC: P319000 or P319100.

  16. Check the DTC judgment result.

    GTS 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

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system is malfunctioning.

    • If the judgment result shows INCOMPLETE, perform the Confirmation Driving Pattern and check the DTC judgment result again.

CAUTION / NOTICE / HINT

Note


  • Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.

    Click here

    (Select Powertrain in Health Check and then check the time stamp data.)

    Click here

  • If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.

    Click here

Tech Tips


  • Performing this diagnosis procedure repeatedly for symptom confirmation may cause the SOC to drop, preventing the system from entering the READY-on state. In this case, use the THS charger to charge the HV battery.

  • Cranking the engine once causes the SOC to drop approximately 1%.

  • Charging the HV battery once (10 minutes) using the THS charger restores the SOC approximately 2%.

  • Charging the HV battery using the THS charger takes approximately 10 minutes when the HV battery temperature is 25°C (77°F) or approximately 30 minutes when the HV battery temperature is 0°C (32°F).

  • The THS charger is a supplemental charging device that charges the HV battery enough to enable the engine to start (the vehicle can enter the READY-on state).

  • Read freeze frame data using the GTS. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P319000, P319100 AND/OR P319300)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Trouble Codes.

    5. Check for DTCs and freeze frame data and write them down.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P319000 or P319100 are output A
      DTC P319300 is output B
      DTC P319000, P319100 and/or P319300 and other DTCs are output C

      Tech Tips

      If any SFI system DTCs other than DTC P319000, P319100 or P319300 are output, perform troubleshooting for those DTCs first.


    B

    GO TO DTC P319300 Click here

    C

    GO TO DTC CHART Click here

    A

  2. CHECK SHORTAGE OF FUEL


    1. Check the amount of fuel remaining.

      OK
      There is enough fuel.

      Tech Tips


      • DTCs P319000, P319100 and/or P319300 may be output if the vehicle ran out of fuel in the past.

      • If not enough fuel is added, DTC P319000, P319100 or P319300 may be output again. If the engine cannot be started because the vehicle is out of fuel, add fuel until the fuel level warning turns off.

      Result
      Proceed to
      OK
      NG

    NG

    REFILL FUEL

    OK

  3. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the power switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK PCV HOSE CONNECTIONS


    1. Check the PCV hose connections.

      Click here

      OK
      PCV valve and hose are connected correctly and are not damaged.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE PCV HOSE

    OK

  5. CHECK INTAKE SYSTEM


    1. Check the intake system for vacuum leaks.

      Click here

      OK
      No leaks from intake system.

      Tech Tips

      Perform "Inspection After Repair" after repairing or replacing the intake system.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE INTAKE SYSTEM

    OK

  6. CHECK FOR UNUSUAL NOISE OR VIBRATION WHEN STARTING ENGINE OR REVVING

    OK
    Unusual noise and vibration do not occur.
    Result
    Proceed to
    OK
    NG

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS

    OK

  7. CHECK FUEL PRESSURE (FOR LOW PRESSURE SIDE)


    1. Check the fuel pressure (for low pressure side).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    GO TO FUEL PUMP CONTROL CIRCUIT Click here

    OK

  8. INSPECT THROTTLE BODY WITH MOTOR ASSEMBLY


    1. Inspect the throttle body with motor assembly.

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the throttle body with motor assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE THROTTLE BODY WITH MOTOR ASSEMBLY Click here

    OK

  9. INSPECT MASS AIR FLOW METER SUB-ASSEMBLY


    1. Inspect the mass air flow meter sub-assembly, referring to On-vehicle Inspection for Mass Air Flow Meter.

      Click here

    2. Inspect the mass air flow meter sub-assembly, referring to Inspection for Mass Air Flow Meter.

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE MASS AIR FLOW METER SUB-ASSEMBLY Click here

    OK

  10. INSPECT ENGINE COOLANT TEMPERATURE SENSOR


    1. Inspect the engine coolant temperature sensor.

      Click here

      Tech Tips

      Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR Click here

    OK

  11. PERFORM ACTIVE TEST USING GTS (CONTROL THE EGR STEP POSITION)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Put the engine in Inspection Mode (2WD for measuring Exhaust Gas).


      Powertrain > Hybrid Control > Utility
      Tester Display
      Inspection Mode

    5. Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher.

      Tech Tips

      The A/C switch and all accessories should be off.

    6. Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position / Data List / Intake Manifold Absolute Pressure and Engine Independent.


      Powertrain > Engine > Active Test
      Active Test Display
      Control the EGR Step Position
      Data List Display
      Intake Manifold Absolute Pressure
      Engine Independent

    7. Confirm that the value of Data List item Engine Independent is "Operate" then check the value of Intake Manifold Absolute Pressure while performing the Active Test.

      Note


      • Make sure that the value of Data List item Engine Independent is "Operate" while performing the Active Test.

      • Do not leave the EGR valve open for 10 seconds or more during the Active Test.

      • Be sure to return the EGR valve to step 0 when the Active Test is completed.

      • Do not open the EGR valve 30 steps or more during the Active Test.

      OK
      The value of Intake Manifold Absolute Pressure changes in response to the EGR step position when the value of Engine Independent is "Operate".
      Standard
      - Control the EGR Step Position (Active Test)
      0 Steps 0 to 30 Steps

      Intake Manifold Absolute Pressure

      (Data List)

      		 (EGR valve is fully closed) Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed

      Tech Tips


      • If the value of Data List item Engine Independent is "Not Opr" when the engine is idling, charge control is being performed. Perform the Active Test after charge control is complete ("Operate" is displayed).

      • While performing the Active Test, if the increase in the value of Intake Manifold Absolute Pressure is small, the EGR valve assembly may be malfunctioning.

      • Even if the EGR valve assembly is malfunctioning, rough idling or an increase in the value of Intake Manifold Absolute Pressure may occur while performing the Active Test. However, the amount that the value of Intake Manifold Absolute Pressure increases will be smaller than normal.

      • If the Active Test cannot be performed due to a malfunction such as the engine not starting, perform the EGR valve assembly inspection the following step.

      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 13 Click here

    NG

  12. INSPECT EGR VALVE ASSEMBLY


    1. Remove the EGR valve assembly.

      Click here

    2. Check if the EGR valve is stuck open.

      OK
      EGR valve is tightly closed.

      Tech Tips

      Perform "Inspection After Repair" after replacing the EGR valve assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE EGR VALVE ASSEMBLY Click here

    OK

  13. REPLACE CRANKSHAFT POSITION SENSOR


    1. Replace the crankshaft position sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  14. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the power switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

  15. CHECK WHETHER DTC OUTPUT RECURS (DTC P319000 OR P319100)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P319000 or P319100 is output B

    A

    END

    B

  16. REPLACE VVT SENSOR (FOR INTAKE CAMSHAFT)


    1. Replace the VVT sensor (for intake camshaft).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  17. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the power switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

  18. CHECK WHETHER DTC OUTPUT RECURS (DTC P319000 OR P319100)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P319000 or P319100 is output B

    A

    END

    B

  19. REPLACE VVT SENSOR (FOR EXHAUST CAMSHAFT)


    1. Replace the VVT sensor (for exhaust camshaft).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  20. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the power switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

  21. CHECK WHETHER DTC OUTPUT RECURS (DTC P319000 OR P319100)


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTC P319000 or P319100 is output B

    A

    END

    B

  22. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  23. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine > Clear DTCs

    5. Turn the power switch off and wait for at least 30 seconds.

      Result
      Proceed to
      NEXT

    NEXT

  24. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Proceed to
      NEXT

    NEXT

    END