1A
DTC P0011 / P0012: Camshaft Position – Timing Over-Advanced or System Performance / -Retarded
System Description
Actual value of advanced valve timing does not reach target value.
Valve timing is advanced although ECM command is most retarding.
DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
Actual value of advanced valve timing does not reach target value, or valve timing is advanced although ECM command is most retarding.
(2 driving cycle detection logic)
Oil control valve
Oil galleries of timing sprocket
Intake camshaft timing sprocket (Camshaft position control (VVT) actuator)
Oil control valve circuit
ECM
DTC Confirmation Procedure
WARNING:
When performing a road test, select a place where there is no traffic or possibility of a traffic accident and be very careful during testing to avoid occurrence of an accident.
Road test should be carried out with 2 persons, a driver and a tester, on a level road.
NOTE:
Check to make sure that the following conditions are satisfied when using this “DTC Confirmation Procedure”.
Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
1) Clear DTC. Refer to DTC Clearance:M13A with VVT .
2) Start engine and drive vehicle under usual driving condition for 5 minutes or longer until engine is warmed up to normal operating temperature.
3) Stop vehicle.
4) Run engine at idle speed for 1 minute.
5) Start vehicle and increase vehicle speed up to 80 km/h (50 mile/h).
6) Keep vehicle speed at 80 km/h (50 mile/h) for 1 minute or longer at 5th gear position or D range.
7) Decrease vehicle speed gradually.
8) Stop vehicle and ignition switch OFF.
9) Repeat Step 4) to 7) one time.
10) Stop vehicle.
11) Check DTC. Refer to DTC Check:M13A with VVT .
DTC Troubleshooting
Step Action YES NO
1
Is DTC P0010 detected together?
Go to Step 2.
2
Do you have SUZUKI scan tool?
Go to Step 3.
Go to Step 5.
3
Camshaft position control check
1) With ignition switch turned OFF, connect SUZUKI scan tool.
2) Start engine and warm up to normal operating temperature.
3) Select menu to DATA LIST.
4) Check that the “VVT GAP” displayed on SUZUKI scan tool is 0 – 5°.
Is it OK?
Go to Step 4.
Check valve timing referring to Timing Chain and Chain Tensioner Removal and Installation:M13A . If OK, go to Step 5.
4
Camshaft position control check
1) Drive vehicle the following condition.
Vehicle speed at 80 km/h (50 mile/h).
Gear position at 5th or D range.
2) Check that the “VVT GAP” displayed on SUZUKI scan tool is 0 – 5°.
Is it OK?
Substitute a known-good ECM and recheck.
Go to Step 5.
5
Oil control circuit visual inspection
1) Remove cylinder head cover referring to Cylinder Head Cover Removal and Installation:M13A .
2) Check oil pressure leakage from oil control circuit.
Is it in good condition?
Go to Step 6.
Repair or replace.
6
Oil control valve and oil gallery pipe check
1) Remove oil control valve referring to “With VVT” in Timing Chain Cover Removal and Installation:M13A .
2) Remove oil gallery pipe referring to “With VVT” in Timing Chain Cover Removal and Installation:M13A .
3) Check oil gallery pipe and oil control valve for clog or sludge.
Are they in good condition?
Go to Step 7.
Clean oil control valve and oil gallery pipe. Replace oil control valve if a problem is not solved after cleaning oil control valve and oil gallery pipe.
7
Oil control valve electrical circuit check
1) Check that oil control valve circuit is in good condition referring to DTC P0010: Camshaft Position Actuator Circuit:M13A with VVT .
Is circuit in good condition?
Repair circuit.
Go to Step 8.
8
Oil control valve check
1) Check oil control valve referring to Oil Control Valve Inspection (For Engine with VVT):M13A .
Is it in good condition?
Replace camshaft timing sprocket.
Replace oil control valve.
NOTE:
Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and confirm that the trouble has been corrected.