Brand:

Toyota

Model Name:

Yaris NCP90 91 92 93

Manual:

Repair Manual

Section:

1Nz-Fe Engine Control System

Title:

Sfi System

  1. Description

  2. Wiring diagram

  3. Inspection procedure

  4. Check valve timing (check for loose and jumped tooth of timing chain)

  5. Replace ecm

  6. Adjust valve timing

  7. Check whether dtc output recurs (dtc p0016)

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


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DESCRIPTION

In the VVT (Variable Valve Timing) system, the appropriate intake valve open and close timing is controlled by the ECM. The ECM performs intake valve control by performing the following: 1) controlling the camshaft and camshaft timing 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.
DTC Detection Conditions
Trouble Areas
P0016
Deviation in crankshaft and camshaft position sensor signals (2 trip detection logic)
  1. Mechanical system (Timing chain has jumped tooth or chain stretched)
  2. ECM

WIRING DIAGRAM

Refer to DTC P0335 (Click here).

INSPECTION PROCEDURE

HINT:
Read freeze frame data using an intelligent tester. Freeze frame data record the engine condition 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 JUMPED TOOTH OF TIMING CHAIN)
  1. Remove the cylinder head cover. Yaris

  2. Remove the cylinder head cover.

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

  1. Check that the timing marks on the camshaft timing sprocket and camshaft timing gear are facing upward 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.



NGnext
Go to step 3
OK
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2.REPLACE ECM
Click here


NEXTnext
Go to step 4

3.ADJUST VALVE TIMING

NEXT
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4.CHECK WHETHER DTC OUTPUT RECURS (DTC P0016)
NOTICE:
After replacing the ECM or adjusting intake valve timing, confirm that the DTC output does not recur.

  1. Connect an intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Clear DTCs (Click here).

  1. Switch the ECM from normal mode to check mode using the tester (Click here).

  1. Start the engine and warm it up.

  1. Allow the engine to idle for 1 minute or more, and then drive the vehicle for 1 minute or more.

  1. Confirm that no DTC is set, using the tester.

    OK:
    No DTC output

NEXT
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END