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Toyota Sienna Service Manual: Crankshaft Position - Camshaft Position Correlation

Toyota Sienna Service Manual / 2GR-FE Engine control system / SFI system / Diagnostic trouble code chart / Crankshaft Position - Camshaft Position Correlation

DTC P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

DTC P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)

DTC P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)

DTC P0019 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)

DESCRIPTION

Refer to DTC P0335

DTC No.

DTC Detection Condition

Trouble Area

P0016 Deviations in crankshaft and camshaft position sensor (for intake camshaft) 1 signals (2 trip detection logic)
  • Mechanical system (Timing chain has jumped teeth or chain stretched)
  • ECM
P0017 Deviations in crankshaft and camshaft position sensor (for exhaust camshaft) 1 signals (2 trip detection logic)
P0018 Deviations in crankshaft and camshaft position sensor (for intake camshaft) 2 signals (2 trip detection logic)
P0019 Deviations in crankshaft and camshaft position sensor (for exhaust camshaft) 2 signals (2 trip detection logic)

MONITOR DESCRIPTION

DTC P0016 and P0018
The ECM optimizes the valve timing by using the VVT (Variable Valve Timing) system to control the intake camshaft. The VVT system includes the ECM, the Oil Control Valve (OCV) and the VVT controller.

The ECM sends a target duty-cycle control signal to the OCV. This control signal regulates the oil pressure applied to the VVT controller. The VVT controller can advance or retard the intake camshaft. The ECM calibrates the intake valve timing by setting the intake camshaft to the most retarded angle while the engine is idling. The ECM closes the OCV to retard the cam. The ECM stores this value as the VVT learning value. When the difference between the target and actual intake valve timings is 5 CA (Crankshaft Angle) or less, the ECM stores it.

If the VVT learning value matches the following conditions, the ECM determines the existence of a malfunction in the VVT system, and sets the DTC.

This DTC indicates that the intake camshaft has been installed toward the crankshaft at an incorrect angle, caused by factors such as the timing chain having jumped a tooth.

This monitor begins to run after the engine has idled for 5 minutes.

DTC P0017 and P0019
The ECM checks valve timing (VVT learning value) on the exhaust side while the engine is running at a low speed, in order to monitor the gap between current and target valve timings on the exhaust side. The VVT learning value is calculated from the positions of the camshaft and crankshaft. The camshaft will come to the most retarded position when the engine is running at a low speed. If the camshaft position is normal, the VVT learning value should be within the specified range. If the VVT learning value is not within the specified range, the ECM determines this as a malfunction.

MONITOR STRATEGY

MONITOR STRATEGY

TYPICAL ENABLING CONDITIONS

All:

TYPICAL ENABLING CONDITIONS

P0016 and P0018:

TYPICAL ENABLING CONDITIONS

P0017 and P0019:

TYPICAL ENABLING CONDITIONS

TYPICAL MALFUNCTION THRESHOLDS

P0016 and P0018:

TYPICAL MALFUNCTION THRESHOLDS

P0017 and P0019:

TYPICAL MALFUNCTION THRESHOLDS

WIRING DIAGRAM

Refer to DTC P0335

INSPECTION PROCEDURE

HINT: Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction

1 CHECK VALVE TIMING (CHECK FOR LOOSE AND A JUMPED TOOTH OF TIMING CHAIN)

CHECK VALVE TIMING (CHECK FOR LOOSE AND A JUMPED TOOTH OF TIMING CHAIN)

  1. Remove the cylinder head covers RH and LH.
  2.  Turn the crankshaft to align the matchmarks of the crankshaft.
  3.  Align the notch of the crankshaft pulley to the "0" position.
  4. Check if the matchmarks of the camshaft pulley and camshaft bearing cap align.
  5.  Turn the crankshaft clockwise by 360 if the matchmarks do not align. Check if they align once again.

OK: The matchmarks of the camshaft pulley and the camshaft bearing cap align when the notch of the crankshaft pulley is in the "0" position.

NOTICE: After replacing the ECM or adjusting intake valve timing, confirm that the DTC output does not recur.

  1.  Confirm that the DTC output does not recur.
  1.  Connect the intelligent tester to the DLC3.
  2.  Turn the ignition switch to the ON position.
  3.  Turn the tester on.
  4.  Clear the DTCs.
  5.  Select the check mode using the tester.
  6.  Start the engine and warm it up.
  7.  Allow the engine to idle for 1 minute or more, and then drive the vehicle for 1 minute or more.
  8.  Confirm that no DTC is set using the tester.

REPLACE ECM

Camshaft Position "B" - Timing Over-Advanced
DTC P0014 Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1) DTC P0015 Camshaft Position "B" - Timing Over-Retarded (Bank 1) DTC P0024 Camshaft Positio ...

Oxygen (A/F) Sensor Heater Control Circuit Low/ Oxygen (A/F) Sensor Heater Control Circuit High
DTC P0031 Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1) DTC P0032 Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1) DTC P0051 Oxygen (A/F) Sensor Heater Control ...

Other materials:

Inspection
1. Inspect starter assembly NOTICE: These tests must be performed within 3 to 5 seconds to avoid burning out the coil. (a) Perform the pull-in test. (1) Disconnect the lead wire from terminal C. (2) Connect the battery to the magnetic switch as shown in the illustratio ...

Mass or Volume Air Flow Circuit/ Mass or Volume Air Flow Circuit Low Input/ Mass or Volume Air Flow Circuit High Input
DESCRIPTION The Mass Air Flow (MAF) meter is a sensor that measures the amount of air flowing through the throttle valve. The ECM uses this information to determine the fuel injection time and to provide appropriate airfuel ratio. Inside the MAF meter, there is a heated platinum wire which is ...

Passenger Airbag ON/OFF Indicator Circuit Malfunction
DTC B1152/28 Passenger Airbag ON/OFF Indicator Circuit Malfunction DESCRIPTION The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and passenger airbag ON/OFF indicator. This circuit indicates the operation condition of the front passenger airbag, ...

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