DTC Logic

DTC DETECTION LOGIC

NOTE

:
If DTC P0524 is displayed with DTC P0520, P0075, or P0081, perform trouble diagnosis for DTC P0520, P0075, or P0081 first. Refer to EC-176, "DTC 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.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 10 V and 16 V at idle.

>> GO TO 2.

2.PRECONDITIONING-II

Check oil level and oil pressure. Refer to LU-8, "Inspection".

Is the inspection result normal? YES >> GO TO 3.

NO >> Proceed to LU-8, "Inspection".

3.PERFORM DTC CONFIRMATION PROCEDURE

WITH CONSULT-III

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

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

CAUTION:
Always drive at a safe speed.

3. Check 1st trip DTC.

WITH GST

Follow the procedure “With CONSULT-III” above.

Is 1st trip DTC detected? YES >> Proceed to EC-298, "Diagnosis Procedure" NO >> INSPECTION END

Diagnosis Procedure

1.CHECK OIL PRESSURE WARNING LAMP

1. Start engine.

2. Check oil pressure warning lamp and confirm it is not illuminated.

Is oil pressure warning lamp illuminated? YES >> Proceed to MWI-66, "Diagnosis Procedure".

NO >> GO TO 2.

2.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to EC-164, "Component Inspection".

Is the inspection result normal? YES >> GO TO 3.

NO >> Replace malfunctioning intake valve timing control solenoid valve. Refer to EM-67, "Exploded View".

3.CHECK CRANKSHAFT POSITION SENSOR

Refer to EC-273, "Component Inspection".

Is the inspection result normal? YES >> GO TO 4.

NO >> Replace crankshaft position sensor. Refer to EM-78, "Exploded View".

4.CHECK CAMSHAFT POSITION SENSOR

Refer to EC-276, "Component Inspection".

Is the inspection result normal? YES >> GO TO 5.

NO >> Replace malfunctioning camshaft position sensor. Refer to EM-78, "Exploded View".

5.CHECK CAMSHAFT (INT)

Check the following.

• Accumulation of debris to the signal plate of camshaft rear end • Chipping signal plate of camshaft rear end

Is the inspection result normal? YES >> GO TO 6.

NO >> Remove debris and clean the signal plate of camshaft rear end or replace camshaft. Refer to EM-79, "Removal and Installation".

6.CHECK TIMING CHAIN INSTALLATION

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

Are there any service records that may cause timing chain misaligned? YES >> Check timing chain installation. Refer to EM-67, "Exploded View".

NO >> GO TO 7.

7.CHECK LUBRICATION CIRCUIT

Perform “Inspection of Camshaft Sprocket (INT) Oil Groove”. Refer to EM-82, "Inspection".

Is the inspection result normal? YES >> Check intermittent incident. refer to GI-42, "Intermittent Incident".

NO >> Clean lubrication line.