Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A (P001600)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Engine / A25a-fxs Engine Control / Sfi System / Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A (P001600)

DESCRIPTION

Refer to DTC P001001.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P001600

Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor A

Deviation in the crankshaft position sensor signal and camshaft position sensor (for intake camshaft) signal (2 trip detection logic).

  • Valve timing
  • Camshaft timing gear assembly
  • ECM

Comes on

DTC stored

SAE Code: P0016

HINT:

If initialization is performed using the Techstream with any of the connectors of the wire harnesses between the power source or ECM and the cam timing control motor with EDU assembly disconnected, DTC P001600 may be stored. If DTC P001600 is output, check the connection condition of each connector.

MONITOR DESCRIPTION

This DTC is stored when a deviation in the valve timing is detected. If a deviation in the valve timing is detected when the engine is idling (during valve timing learning) after performing learning value reset using the Techstream or when the vehicle is being driven, the ECM determines that a malfunction has occurred. If a deviation in the valve timing is detected in consecutive driving cycles, the ECM will illuminate the MIL and store a DTC.

MONITOR STRATEGY

Related DTCs

P0016: Camshaft timing misalignment at idling (for intake camshaft)

Required Sensors/Components (Main)

Camshaft timing gear assembly

Required Sensors/Components (Related)

Camshaft position sensor

Crankshaft position sensor

Frequency of Operation

Continuous

Duration

Within 1 minute

MIL Operation

2 driving cycles

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

None

Engine speed

500 to 1200 rpm

TYPICAL MALFUNCTION THRESHOLDS

Either of the following conditions is met

A or B

A. VVT learned value at maximum retarded valve timing

Less than 19.5°CA (Crankshaft Angle)

B. VVT learned value at maximum retarded valve timing

More than 42.7°CA (Crankshaft Angle)

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG).
  3. Turn the Techstream on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the power switch off and wait for at least 30 seconds.
  6. Turn the power switch on (IG) [A].
  7. Turn the Techstream on.
  8. Put the engine in Inspection Mode (Maintenance Mode).

    Click here

  9. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher [B].
  10. Idle the engine for 5 minutes or more [C].
  11. Enter the following menus: Powertrain / Engine / Trouble Codes [D].
  12. 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.
  13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  14. Input the DTC: P001600.
  15. 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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • If the judgment result is INCOMPLETE, perform steps [E] through [G].
    • [A] to [D]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.
  16. With the engine running, drive the vehicle for 10 minutes or more [E].

    CAUTION:

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

    HINT:

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

  17. Idle the engine for 5 minutes or more [F].
  18. Enter the following menus: Powertrain / Engine / Trouble Codes [G].
  19. 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.
  20. Check the DTC judgment result.

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • [A] to [G]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the auxiliary battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

CAUTION / NOTICE / HINT

NOTICE:

  • Vehicle Control History may be stored in the hybrid vehicle control ECU assembly 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 assembly, 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

HINT:

Read Freeze Frame Data using the Techstream. 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 P001600)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine / Trouble Codes.

(e) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTC P001600 is output

A

DTC P001600 and other DTCs are output

B

HINT:

If any DTCs other than P001600 are output, troubleshoot those DTCs first.

B

GO TO DTC CHART

A

2.

INSPECT CAMSHAFT TIMING GEAR ASSEMBLY

*1

Camshaft Timing Gear Assembly

*2

Eccentric Shaft

(a) Remove the cam timing control motor with EDU assembly.

Click here

(b) Check if the eccentric shaft of the camshaft timing gear assembly rotates smoothly.

NOTICE:

If the camshaft is at a position where a valve is about to open, the eccentric shaft may become difficult to rotate.

OK:

Rotates smoothly.

HINT:

Perform "Inspection After Repair" after replacing the camshaft timing gear assembly, or removing the cam timing control motor with EDU assembly.

Click here

NG

REPLACE CAMSHAFT TIMING GEAR ASSEMBLY

OK

3.

CHECK VALVE TIMING (CHECK FOR LOOSE AND JUMPED TEETH ON TIMING CHAIN)

(a) Remove the cylinder head cover sub-assembly.

Click here

(b) Turn the crankshaft pulley and align its groove with the TDC timing mark of the timing chain cover.

(c) Check that the timing marks of the camshaft timing gear assembly and camshaft timing exhaust gear assembly are at the positions shown in the illustration.

HINT:

If the timing marks are not as shown, turn the crankshaft one revolution clockwise.

OK:

Timing marks on camshaft timing gear assembly and camshaft timing exhaust gear assembly are at the positions shown in the illustration.

HINT:

If the result is not as specified, check for mechanical malfunctions that may have affected the valve timing, such as a jumped tooth or stretching of the timing chain.

*a

Timing Mark

*b

TDC Timing Mark

*c

Groove

NG

GO TO STEP 6

OK

4.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the power switch off and wait for at least 30 seconds.

NEXT

5.

CHECK WHETHER DTC OUTPUT RECURS (DTC P001600)

(a) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

(b) Enter the following menus: Powertrain / Engine / Trouble Codes.

(c) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P001600 is output

B

A

CHECK FOR INTERMITTENT PROBLEMS

B

REPLACE ECM

6.

CHECK ENGINE MECHANICAL SYSTEM

(a) Check for mechanical malfunctions that affect the valve timing, such as a jumped tooth or stretching of the timing chain.

HINT:

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

Click here

NG

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

OK

7.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(e) Turn the power switch off and wait for at least 30 seconds.

NEXT

8.

CHECK WHETHER DTC OUTPUT RECURS

(a) Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.

(b) Enter the following menus: Powertrain / Engine / Trouble Codes.

(c) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC P001600 is output

B

A

CHECK FOR INTERMITTENT PROBLEMS

B

REPLACE ECM

    Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1 (P001400,P001500)

    Crankshaft Position - Camshaft Position Correlation Bank 1 Sensor B (P001700)

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