Dtc P0011 / P0012: Camshaft Position - Timing Over-Advanced Or System Performance / -Retarded (For M16 Engine) - Suzuki GRAND VITARA Owner's Manual

Step
9 Oil control valve check
Check oil control valve referring to "Oil Control Valve
Inspection: For M16A Engine with VVT in Section 1D".
Is resistance within specified value?
DTC P0011 / P0012: Camshaft Position - Timing Over-Advanced or System Performance / -Retarded
(For M16 Engine)
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
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)
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 by 2 persons, a driver and 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: ".
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.
7) Decrease vehicle speed gradually.
8) Stop vehicle and turn OFF ignition switch.
9) Repeat Step 4) to 7) one time.
10) Stop vehicle.
11) Check DTC. Refer to "DTC Check: ".
Action
Engine General Information and Diagnosis:
Yes
Substitute a known-
good ECM and recheck.
Trouble area
• Oil control valve
• Oil galleries of timing sprocket
• Intake camshaft timing sprocket (Camshaft position
control (VVT) actuator)
• Oil control valve circuit
• ECM
1A-62
No
Faulty oil control valve.
S5JB0A1104014