P0075
P0075 INTAKE VALVE TIMING CONTROL
DTC Logic
DTC DETECTION LOGIC
DTC 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.
- GO TO 2.
2. PERFORM DTC CONFIRMATION PROCEDURE
1.Start engine and let it idle for 5 seconds.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK INTAKE VALVE TIMING (IVT) CONTROL SOLENOID VALVE POWER SUPPLY
1.Turn ignition switch OFF.
2.Disconnect IVT control solenoid valve harness connector.
3.Turn ignition switch ON.
4.Check the voltage between intake valve timing control solenoid valve harness connector and ground.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.
2. CHECK IVT CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect IPDM E/R harness connector.
3.Check the continuity between IVT control solenoid valve harness connector and IPDM E/R harness connector.
4.Also check harness for short to ground.
Is the inspection result normal?
YES- Perform the trouble diagnosis for power supply circuit.
NO- Repair or replace error-detected parts.
3. CHECK IVT CONTROL SOLENOID VALVE GROUND CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between IVT control solenoid valve harness connector and ECM harness connector.
*1: Except for California
*2: For California
4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace error-detected parts.
4. CHECK IVT CONTROL SOLENOID VALVE
Check the IVT control solenoid valve. Refer to "Component Inspection (IVT Control Solenoid Valve)" .
Is the inspection result normal?
YES- GO TO 5.
NO- Replace IVT control solenoid valve. Refer to "Exploded View" Exploded View.
5. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE POWER SUPPLY
1.Disconnect IVT intermediate lock control solenoid valve harness connector.
2.Turn ignition switch ON.
3.Check the voltage between IVT intermediate lock control solenoid valve harness connector and ground.
Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 6.
6. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect IPDM E/R harness connector.
3.Check the continuity between IVT intermediate lock control solenoid valve harness connector and IPDM
E/R harness connector.
4.Also check harness for short to ground.
Is the inspection result normal?
YES- Perform the trouble diagnosis for power supply circuit.
NO- Repair or replace error-detected parts.
7. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE GROUND CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between IVT intermediate lock control solenoid valve harness connector and ECM
harness connector.
*1: Except for California
*2: For California
4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 8.
NO- Repair or replace error-detected parts.
8. CHECK IVT INTERMEDIATE LOCK CONTROL SOLENOID VALVE
Check the IVT intermediate lock control solenoid valve. Refer to "Component Inspection (IVT Intermediate Lock Control Solenoid Valve)" .
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace IVT intermediate lock control solenoid valve. Refer to "Exploded View" Exploded View.
Component Inspection (IVT Control Solenoid Valve)
1. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-I
1.Turn ignition switch OFF.
2.Disconnect intake valve timing control solenoid valve harness connector.
3.Check resistance between intake valve timing control solenoid valve terminals as follows.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace intake valve timing control solenoid valve. Refer to "Exploded View" Exploded View.
2. CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-II
1.Remove intake valve timing control solenoid valve. Refer to "Exploded View" Exploded View.
2.Provide 12 V DC between intake valve timing control solenoid valve terminals 1 and 2, and then interrupt it. Make sure that the plunger moves as shown in the figure.
CAUTION:
Do not apply 12 V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve timing control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing control solenoid valve is removed.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace intake valve timing control solenoid valve. Refer to "Exploded View" Exploded View.
Component Inspection (IVT Intermediate Lock Control Solenoid Valve)
1. CHECK INTAKE VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE-I
1.Turn ignition switch OFF.
2.Disconnect intake valve timing intermediate lock control solenoid valve harness connector.
3.Check resistance between intake valve timing intermediate lock control solenoid valve terminals as follows.
Is the inspection result normal?
YES- GO TO 2.
NO- Replace intake valve timing intermediate lock control solenoid valve. Refer to "Exploded View" Exploded View.
2. CHECK INTAKE VALVE TIMING INTERMEDIATE LOCK CONTROL SOLENOID VALVE-II
1.Remove intake valve timing intermediate lock control solenoid valve. Refer to "Exploded View" Exploded View.
2.Provide 12 V DC between intake valve timing intermediate lock control solenoid valve terminals 1 and 2, and then interrupt it.
Make sure that the plunger moves as shown in the figure.
CAUTION:
Do not apply 12 V DC continuously for 5 seconds or more.
Doing so may result in damage to the coil in intake valve timing intermediate lock control solenoid valve.
NOTE:
Always replace O-ring when intake valve timing intermediate lock control solenoid valve is removed.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace intake valve timing intermediate lock control solenoid valve. Refer to "Exploded View" Exploded View.