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DTC P0019: Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor B: Notes

WARNING: This page is about a different variant/trim than selected.

1. - 

DTC detecting condition: 

Detected when two consecutive driving cycles with fault occur.

Trouble symptom: 

Wiring diagram: 

Engine Electrical System Ref. to WIRING SYSTEM (CROSSTREK MODEL (EXCEPT FOR HEV))>ENGINE ELECTRICAL SYSTEM .

G13941439Courtesy of SUBARU OF AMERICA, INC.
G13941441Courtesy of SUBARU OF AMERICA, INC.
G13227645Courtesy of SUBARU OF AMERICA, INC.
CAUTION: Use the check board when measuring the ECM terminal voltage and resistance. Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.5)>GENERAL DESCRIPTION>PREPARATION TOOL>HOW TO USE CHECK BOARD .
NOTE: After the faulty parts are repaired or replaced, perform the final check in Basic Diagnostic Procedure. Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.5)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .
  1. CHECK DTC  .
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor or a general scan tool, read the DTC of [Engine]. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC other than P0019 displayed? (Current malfunction)

    Yes:  Check the appropriate DTC using the "Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.5)>DIAGNOSTIC TROUBLE CODE (DTC) .

    No:  Save the freeze frame data. Ref. to COMMON (DIAG)>FREEZE FRAME DATA . Go to  2.

  2. CHECK ENGINE OIL CONDITION  .

    Check the engine oil condition.

    NOTE: Check the following items.
    • Within the specified range in amount
    • Excessively dirty
    • Coagulated by additives
    • Use of oil of specified viscosity

    Is the check result OK?

    Yes:  Go to  3.

    No:  Adjust the oil amount, or replace the engine oil and engine oil filter. Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>ENGINE OIL>REPLACEMENT . Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL FILTER>REMOVAL .

    Go to  3.

  3. CHECK TIMING CHAIN  .
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor or a general scan tool, perform the clear memory of [Engine]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
    3. Turn the ignition switch to OFF.
    4. Disconnect the connector of the exhaust oil control solenoid LH. (DTC will be set but this will not affect the inspection)
    5. Turn the ignition switch to ON.
    6. Start monitoring of [Exh. VVT Retard Ang. L] using Subaru Select Monitor.
      NOTE: For detailed operation procedures, refer to "Common (Diagnostics)". Ref. to COMMON (DIAG)>DATA MONITOR .
    7. Start the engine.
    8. Read [Exh. VVT Retard Ang. L] within 10 seconds after engine is started.
      NOTE: The display will indicate [0] by judging the position as standard after 10 seconds elapse since the engine was started.
    9. Record the readings [Exh. VVT Retard Ang. L].
    10. Stop the engine.

    Is [Exh. VVT Retard Ang. L] out of standard (0 deg) by ±10 deg or more within 10 seconds after starting?

    Yes:  Repair the timing chain. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>TIMING CHAIN ASSEMBLY .

    Go to  15.

    No:  Go to  4.

  4. CHECK ON-BOARD MONITOR TEST RESULT  .
    1. Replace the exhaust oil control solenoid LH. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>OIL CONTROL SOLENOID>REMOVAL .
    2. Turn the ignition switch to ON.
    3. Using the Subaru Select Monitor or a general scan tool, perform the clear memory of [Engine]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
    4. Perform the inspection mode T. Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.5)>INSPECTION MODE .
    5. Read the values in [VVT Monitor Bank 1] and [VVT Monitor Bank 2] according to the reading out procedure of MODE $06 using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.5)>GENERAL SCAN TOOL>OPERATION>MODE $06 (REQUEST ON-BOARD MONITORING TEST RESULTS FOR INTERMITTENTLY MONITORED SYSTEMS) .
      WARNING:
      • Performing inspection mode needs a driver along with a checker who should check the data.
      • When performing inspection mode on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
      NOTE:
      • Perform the inspection mode again without stopping the engine because the diagnosis is not completed yet when the diagnostic value indicates 0.
      • Keep on checking the data during inspection mode because the diagnostic value is repeatedly updated.
    6. Record the read values of [VVT Monitor Bank 1] and [VVT Monitor Bank 2].

    Is the value of [VVT Monitor Bank 2] for the replaced oil control solenoid 1000 or more?

    Yes:  Go to  6.

    No:  Go to  5.

  5. CHECK ON-BOARD MONITOR TEST RESULT  .

    Compare the values of [VVT Monitor Bank 1] and [VVT Monitor Bank 2] recorded in step 4.

    Is the value of [VVT Monitor Bank 2] 1000 or less and more than (the value of [VVT Monitor Bank 1] x 1.5 + 100) compared with the value of [VVT Monitor Bank 1]?

    Yes:  Go to  6.

    No:  Idle the engine for 5 minutes, and then replace the oil filter and engine oil (flushing). Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>ENGINE OIL>REPLACEMENT . Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL FILTER .

    Go to  15.

  6. CHECK HARNESS AND CONNECTOR  .

    Check for a bend, damage and poor contact of harness and connector.

    NOTE: Check the following items.

    Is the check result OK?

    Yes:  Go to  7.

    No:  Repair or replace faulty parts. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>ENGINE CONTROL MODULE (ECM) . Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>OIL CONTROL SOLENOID . Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>CAMSHAFT POSITION SENSOR . Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>CRANKSHAFT POSITION SENSOR . Go to  7.

  7. CHECK HARNESS AND CONNECTOR (OPEN)  .
    1. Turn the ignition switch to OFF.
    2. Disconnect the connector from ECM.
    3. Disconnect the connector from the exhaust oil control solenoid LH.
    4. Measure the resistance between exhaust oil control solenoid LH connector and ECM connector.

    Connector & terminal 

    (E158) No. 109 - (E66) No. 2:

    Is the resistance less than 1 Ω?

    Yes:  Go to  8.

    No:  Repair the open circuit in harness between ECM connector and exhaust oil control solenoid LH connector.

    Go to  15.

  8. CHECK HARNESS AND CONNECTOR (OPEN)  .
    1. Disconnect the connector from exhaust camshaft position sensor LH.
    2. Measure the resistance between the exhaust camshaft position sensor LH connector and ECM connector.

    Connector & terminal 

    (E158) No. 64 - (E65) No. 2:

    Is the resistance less than 1 Ω?

    Yes:  Go to  9.

    No:  Repair the open circuit in the harness between ECM connector and exhaust camshaft position sensor LH connector.

    Go to  15.

  9. CHECK HARNESS AND CONNECTOR (OPEN)  .
    1. Disconnect the connector from the crankshaft position sensor.
    2. Measure the resistance between the crankshaft position sensor connector and ECM connector.

    Connector & terminal 

    (E158) No. 66 - (E10) No. 1:

    Is the resistance less than 1 Ω?

    Yes:  Go to  10.

    No:  Repair the open circuit in the harness between the ECM connector and crankshaft position sensor connector.

    Go to  15.

  10. CHECK ENGINE OIL PRESSURE  .

    Check the engine oil pressure. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>ENGINE OIL PRESSURE>INSPECTION .

    Is the check result OK?

    Yes:  Go to  12.

    No:  Go to  11.

  11. CHECK OIL STRAINER  .

    Check the oil strainer. Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL PAN>INSPECTION .

    Does any foreign matter exist at the oil strainer in the oil pan?

    Yes:  Check and clean inside the oil strainer. Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL PAN .

    Go to  12.

    No:  Replace the chain cover. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CHAIN COVER .

    CAUTION: Overuse of liquid gasket may cause a malfunction when installing the chain cover. Use one specified in the service manual with an appropriate amount (line diameter) of application. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CHAIN COVER>INSTALLATION .

    Go to  13.

  12. CHECK OIL PATH OF CHAIN COVER  .
    1. Remove the engine from the vehicle. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>ENGINE ASSEMBLY .
    2. Check the oil path of the chain cover. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CHAIN COVER>INSPECTION .
    NOTE: Check the O-rings in the following oil path and also check that no foreign matter exists.
    • Inlet of oil pump
    • Outlet of oil pump
    • Each O-ring in the path leading to left/right cylinder head
    • Oil control solenoid
    • Foreign matter exists

    Is the check result OK?

    Yes:  Go to  13.

    No:  Replace faulty parts. If there is any foreign matter, replace the chain cover with a new one. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CHAIN COVER>REMOVAL .

    Go to  13.

  13. CHECK CAMSHAFT  .
    1. Remove the timing chain. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>TIMING CHAIN ASSEMBLY .
    2. Rotate the camshaft by hand to compare the rotational resistance of the four.
    NOTE: Check the following items if there is a clearly faulty condition in the camshaft (bank 2) such as restriction or rotational resistance by comparing it with the rotational resistance of the camshaft (bank 1).
    • Foreign matter attached to camshaft
    • Damage of camshaft (scratching, galling, wear, etc.)

    Is the check result OK?

    Yes:  Go to  14.

    No:  Replace the cam carrier and camshaft. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CAM CARRIER>REMOVAL . Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CAMSHAFT>REMOVAL .

    Go to  14.

  14. CHECK OIL PASSAGE FROM OIL PUMP TO OIL CONTROL SOLENOID  .

    Visually check the following parts of the oil passage from the oil pump to the oil control solenoid to check obvious defectiveness such as foreign matter, clogging, etc.

    • Oil passage in cam Carrier
    • Oil passage on cylinder head side
    • Oil passage at the joint between cam sprocket and camshaft
    • Oil passage at the back of cam sprocket and the end of camshaft when the cam sprocket is removed
    NOTE: Refer to removal procedure of cam carrier in service manual. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CAM CARRIER . Is the check result OK?

    Yes:  Replace the cam sprocket. Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CAM SPROCKET .

    CAUTION:

    Go to  15.

    No:  Remove the foreign matter. Replace the cam carrier oil filter (reuse not allowed). Ref. to MECHANICAL (H4DO (EXCEPT FOR HEV))>CAM CARRIER .

    CAUTION:
    NOTE: After servicing, idle the engine for 5 minutes, and then replace the oil filter and engine oil (flushing). Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>ENGINE OIL>REPLACEMENT . Ref. to LUBRICATION (H4DO (EXCEPT FOR HEV))>OIL FILTER . Go to  15.
  15. CHECK DATA MONITOR  .
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor or a general scan tool, perform the clear memory of [Engine]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
    3. Using the Subaru Select Monitor, read the value in [VVT Ex Initial Position Learning Value #2].
      NOTE: For detailed operation procedures, refer to "Common (Diagnostics)". Ref. to COMMON (DIAG)>DATA MONITOR .
    4. Find the sum value of read [VVT Ex Initial Position Learning Value #2] and [Exh. VVT Retard Ang. L] recorded in step 3.

    Is the sum value within standard?

    Standard:

    73 - 104

    Yes:  ECM is good; finish the diagnosis.

    No:  Replace the ECM and perform the corresponding inspection mode. Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DO (EXCEPT FOR HEV))>ENGINE CONTROL MODULE (ECM) . Ref. to ENGINE (DIAGNOSTICS) (H4DO 2.5)>INSPECTION MODE . When DTC is not displayed, end the diagnosis.

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