Suzuki GRAND VITARA Owner's Manual page 118

1A-63 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
"Precautions For DTC Troubleshooting: ".
Step
1 Is DTC P0010 detected together?
2 Do you have SUZUKI scan tool?
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 "VVT GAP" displayed on SUZUKI scan tool is
0 – 5°.
Is it OK?
4 Camshaft position control check
1) Drive vehicle under following conditions.
• Vehicle speed at 80 km/h (50 mile/h).
• Gear position at 5th.
2) Check that "VVT GAP" displayed on SUZUKI scan tool is
0 – 5°.
Is it OK?
5 Oil control circuit visual inspection
1) Remove cylinder head cover referring to "Cylinder Head
Cover Removal and Installation: For M16A Engine with
VVT in Section 1D".
2) Check oil pressure leakage from oil control circuit.
Is it in good condition?
6 Oil control valve and oil gallery pipe check
1) Remove oil control valve referring to "Oil Control Valve
Removal and Installation: For M16A Engine with VVT in
Section 1D".
2) Remove oil gallery pipe referring to "Timing Chain Cover
Removal and Installation: For M16A Engine with VVT in
Section 1D".
3) Check oil gallery pipe and oil control valve for clog or
sludge.
Are they in good condition?
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 (For M16 Engine): ".
Is circuit in good condition?
Action Yes
Go to "DTC P0010:
Camshaft Position
Actuator Circuit (For
M16 Engine): ".
Go to Step 3.
Go to Step 4.
Substitute a known-
good ECM and recheck.
Go to Step 6.
Go to Step 7.
Repair circuit.
No
Go to Step 2.
Go to Step 5.
Check valve timing
referring to "Timing
Chain and Chain
Tensioner Removal and
Installation: For M16A
Engine with VVT in
Section 1D". If OK, go to
Step 5.
Go to Step 5.
Repair or replace.
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.
Go to Step 8.