Nissan Rogue (T33) 2021-Present Service Manual: P0012 Intake Valve Timing Control

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE A

• Intake valve timing control actuator

• Intake valve timing control motor

• Camshaft sprocket (INT)

• Wear or damage of the electric intake valve timing control actuator brush

• Center target

POSSIBLE CAUSE B

• Accumulation of debris to the signal plate of the camshaft

• Timing chain installation

FAIL-SAFE

Engine Control System

Stop/Start System

Not applicable

DTC CONFIRMATION PROCEDURE

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.

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 13 consecutive seconds. Hold the accelerator pedal as steady as possible.

   ENG SPEED	Less than 6,000 rpm
   Selector lever	P or N position

4. Stop Nissan Ariya 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?

Proceed to DTC Diagnosis Procedure.

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE-2

With CONSULT

1. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

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

   ENG SPEED	Less than 6,000 rpm (A constant rotation is maintained.)
   Selector lever	D position
   Driving location	Driving Nissan Ariya vehicle uphill (Increased engine load will help maintain the driving conditions required for this test.)

   CAUTION:

   Always drive at a safe speed.

3. Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT” above.

Is 1st trip DTC detected?

Proceed to DTC Diagnosis Procedure.

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

Confirmation after repair: INSPECTION END

DTC Diagnosis Procedure

MALFUNCTION A

CAUTION:

Never reuse O-ring of electric intake valve timing control actuator. When replacing the electric intake valve timing control actuator, replace the O-ring.

CHECK ELECTRIC INTAKE VALVE TIMING CONTROL MOTOR CONTROL CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect electric intake valve timing control motor harness connector.

3. Disconnect electric intake valve timing control module harness connector.

4. Check the continuity between the electric intake valve timing control motor harness connector and the electric intake valve timing control module harness connector.

   Electric intake valve timing control motor		Electric intake valve timing control module		Continuity
   Connector	Terminal	Connector	Terminal
   F91	1	F113	46	Existed
   	2		42

5. Also check harness for short to ground and short to power.

Is the inspection result normal?

GO TO 2.

Repair or replace error-detected parts.

CHECK ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR BRUSH

1. Remove electric intake valve timing control actuator. Refer to Exploded View.

2. Check the state of brush for the electric intake valve timing control actuator.

Is the inspection result normal?

GO TO 3.

Replace the electric intake valve timing control actuator. Refer to Exploded View.

CHECK ELECTRIC INTAKE VALVE TIMING CONTROL ACTUATOR

1. Check the continuity between electric intake valve timing control actuator connector terminal and brush as following.

   

   Electric intake valve timing control actuator		Continuity
   Terminal	Brush
   1	A	Existed
   	B	Not existed
   2	B	Existed
   	A	Not existed

Is the inspection result normal?

GO TO 4.

Replace the electric intake valve timing control actuator. Refer to Exploded View.

CHECK CENTER TARGET

Check the state of center target .

Is the inspection result normal?

Replace camshaft sprocket (INT) (Electric intake valve timing motor is built-in). Refer to Exploded View.

Repair or replace the center target. Refer to Exploded View.

MALFUNCTION B

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?

Check timing chain installation. Refer to Inspection.

GO TO 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?

INSPECTION END

Repair or replace error-detected parts.