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Home >> Suzuki >> 2009 >> Equator Base, 4D Pickup >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (VQ40DE) - (4 Of 5) >> DTC P0011, P0021: IVT Control >> Diagnosis Procedure
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Diagnosis Procedure

DIAGNOSIS PROCEDURE

Step Action YES NO
CHECK OIL PRESSURE WARNING LAMP 
  1. Start engine.
  2. Check oil pressure warning lamp and confirm it is not illuminated.
G06441239Courtesy of SUZUKI OF AMERICA CORP.

OK or NG 
GO TO 2. Go to [CHANGING ENGINE OIL ]
CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE 
Refer to [P0011, P0021 IVT CONTROL ].
OK or NG 
GO TO 3. Replace malfunctioning intake valve timing control solenoid valve.
CHECK CRANKSHAFT POSITION SENSOR (POS) 
Refer to [P0335 CKP SENSOR (POS) ].
OK or NG 
GO TO 4. Replace crankshaft position sensor (POS).
CHECK CAMSHAFT POSITION SENSOR (PHASE) 
Refer to [P0340, P0345 CMP SENSOR (PHASE) ].
OK or NG 
GO TO 5. Replace malfunctioning camshaft position sensor (PHASE).
CHECK CAMSHAFT (INTAKE) 
Check the following.
  • Accumulation of debris on the signal plate of camshaft rear end
G06441240Courtesy of SUZUKI OF AMERICA CORP.

  • Chipping signal plate of camshaft rear end

OK or NG 
GO TO 6. Remove debris and clean the signal plate of camshaft rear end or replace camshaft.
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 or No 
Check timing chain installation. Refer to [TIMING CHAIN: REMOVAL AND INSTALLATION ] GO TO 7.
CHECK LUBRICATION CIRCUIT 
Refer to [CAMSHAFT: REMOVAL AND INSTALLATION ]
OK or NG 
GO TO 8. Clean lubrication line.
CHECK INTERMITTENT INCIDENT 
Refer to [SERVICE INFORMATION FOR ELECTRICAL INCIDENT: INTERMITTENT INCIDENT ]
INSPECTION END