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

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fse Engine Control System. Lexus Gs430, Gs300. Uzs190 Grs190

DESCRIPTION

MONITOR DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

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

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

In the VVT system, the appropriate intake and exhaust valve open and close timing is controlled by the ECM. The ECM performs intake and exhaust valve control by performing the following: 1) controlling the camshaft and camshaft oil control valve, and operating the camshaft timing gear; and 2) changing the relative positions of the gaps between the camshaft and crankshaft.

DTC No.
Detection Condition
Trouble Area
P0016
Deviation in crankshaft position sensor signal and VVT sensor 1 (for intake camshaft (bank 1)) signal (2 trip detection logic)
  1. Mechanical system (timing chain has jumped tooth or chain stretched)
  2. ECM
P0017
Deviation in crankshaft position sensor signal and VVT sensor 1 (for exhaust camshaft (bank 1)) signal (2 trip detection logic)
  1. Mechanical system (timing chain has jumped tooth or chain stretched)
  2. ECM
P0018
Deviation in crankshaft position sensor signal and VVT sensor 2 (for intake camshaft (bank 2)) signal (2 trip detection logic)
  1. Mechanical system (timing chain has jumped tooth or chain stretched)
  2. ECM
P0019
Deviation in crankshaft position sensor signal and VVT sensor 2 (for exhaust camshaft (bank 2)) signal (2 trip detection logic)
  1. Mechanical system (timing chain has jumped tooth or chain stretched)
  2. ECM

MONITOR DESCRIPTION

  1. To monitor the correlation of the intake camshaft position and crankshaft position, the ECM checks the VVT learning value while the engine is idling. The VVT learning value is calibrated based on the camshaft position and crankshaft position. The intake valve timing is set to the most retarded angle while the engine is idling. If the VVT learning value is out of specified range in consecutive driving cycles, the ECM illuminates the MIL and sets the DTC P0016 (Bank 1) or P0018 (Bank 2).
  2. To monitor the correlation of the exhaust camshaft position and crankshaft position, the ECM checks the VVT learning value while the engine is idling. The VVT learning value is calibrated based on the camshaft position and crankshaft position. The exhaust valve timing is set to the most advanced angle while the engine is idling. If the VVT learning value is out of specified range in consecutive driving cycles, the ECM illuminates the MIL and sets the DTC P0017 (Bank 1) or P0019 (Bank 2).

WIRING DIAGRAM

Refer to DTC P0335 on page Click here.

INSPECTION PROCEDURE

HINT:
Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when malfunctions are detected. 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.
1.CHECK VALVE TIMING (CHECK FOR LOOSE AND A JUMPED TOOTH OF TIMING CHAIN)


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fse Engine Control System.Sfi System. Dtc P0016 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)

  1. Remove the cylinder head cover RH and LH.

  1. Turn the crankshaft pulley, and align its groove with the timing mark "0" of the timing chain cover.

  1. Check that the timing marks of the camshaft timing gears are aligned with the timing marks of the bearing cap as shown in the illustration.

    1. If not, turn the crankshaft 1 revolution (360°), then align the marks as above.
      OK:
      Timing marks on camshaft timing gears are aligned as shown in the illustration.

  1. Reinstall the cylinder head cover.



NG
ADJUST VALVE TIMING (REPAIR OR REPLACE TIMING CHAIN)
OK

REPLACE ECM