Nissan Sentra B18 (2020-2025) Service Manual: P0016 Intake Valve Timing Control

Dtc Description

DTC Description

DTC DETECTION LOGIC

DTC	CONSULT screen terms (Trouble diagnosis content)	DTC detection condition
P0016	Crankshaft position B1 sensor A (Crankshaft position - camshaft position correlation bank 1 sensor A)	Diagnosis condition	Ignition switch ON Engine speed: 500 –2,000 rpm [when Nissan Sentra vehicle speed is less than 4 km/h (2.5 MPH)] Engine speed: 1,200 –2,000 rpm [when vehicle speed is 4 km/h (2.5 MPH) or more] Engine coolant temperature: 60 – 120°C (140 – 248°F) Battery voltage: 11 – 16 V
		Signal (terminal)	—
		Threshold	During the diagnosis of alignment of intake valve timing control, the angle difference between actual angle and target angle is 13 degrees or more.
		Diagnosis delay time	0.4 seconds

POSSIBLE CAUSE

• Accumulation of debris to the signal plate of the camshaft

• Timing chain installation

FAIL-SAFE

Engine Control System

Not applicable

Idle Start/Stop System

When a DTC is detected, the start/stop indicator lamp blinks slowly and the idle start/stop system operation is prohibited.

When ECM detects error while operating the idle start/stop system, ECM restarts the engine.

Confirmation Procedure

Confirmation Procedure

1. PRECONDITIONING

   If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

   1. Turn ignition switch OFF and wait at least 10 seconds.

   2. Turn ignition switch ON.

   3. Turn ignition switch OFF and wait at least 10 seconds.

   TESTING CONDITION:

   Before performing the following procedure, confirm that battery voltage is between 11 V and 16 V at idle.

   >>

   GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE-1

   With CONSULT

   1. Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.

   2. Start engine and warm it up to normal operating temperature.

   3. Maintain the following conditions for at least 13consecutive seconds. Hold the accelerator pedal as steady as possible.

      ENG SPEED	1,200 – 2,000 rpm
      COOLANT TEMP/S	More than 60°C (140°F)
      Selector lever	P or N position

   4. Stop Nissan Sentra vehicle with engine running and let engine idle for 13 seconds.

   5. Check 1st trip DTC.

   With GST

   Follow the procedure “With CONSULT” above.

   Is 1st trip DTC detected?

   YES >>

   Proceed to DTC Diagnosis Procedure.

   NO >>

   GO TO 3.

3. PERFORM DTC CONFIRMATION PROCEDURE-2

   With CONSULT

   1. Maintain the following conditions for at least 20 consecutive seconds.

      ENG SPEED	1,200 – 2,000 rpm
      COOLANT TEMP/S	60 – 120°C (140 – 248°F)
      Selector lever	D position
      Driving location	Driving Nissan Sentra vehicle uphill (Increased engine load will help maintain the driving conditions required for this test.)

      CAUTION:

      Always drive at a safe speed.

   2. Check 1st trip DTC.

   With GST

   Follow the procedure “With CONSULT” above.

   Is 1st trip DTC detected?

   YES >>

   Proceed to DTC Diagnosis Procedure.

   NO-1 >>

   To check malfunction symptom before repair: Refer to Intermittent Incident.

   NO-2 >>

   Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. CHECK TIMING CHAIN INSTALLATION

   Check service records for any recent repairs that may cause timing chain misalignment.

   Are there any service records that may cause timing chain misalignment?

   YES >>

   Check timing chain installation. Refer to Inspection.

   NO >>

   GO TO 2.

2. CHECK CAMSHAFT SPROCKET AND TIMING CHAIN

   Check the following.

   • Visually check for chipping camshaft sprocket gear tooth.

     

   • Timing chain tension and elongation.

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Repair or replace error-detected parts.