Suzuki GRAND VITARA Owner's Manual page 101

Step
10 Check fuel supply
1) Check to make sure that enough fuel is filled in fuel tank.
2) Turn ON ignition switch for 2 seconds and then OFF.
3) Repeat Step 2) a few times.
Is fuel pressure felt from fuel feed hose when ignition switch
is turned ON?
11 Check fuel pump for operation
Was fuel pump operating sound heard from fuel filler for
about 2 seconds after ignition switch ON and stop?
12 Check ignition spark
1) Disconnect injector couplers.
2) Remove spark plugs and connect them to high-tension
cords or ignition coil assemblies.
3) Ground spark plugs.
4) Crank engine and check if each spark plug sparks.
Is it in good condition?
Action
For J20 engine
For M16 engine
Engine General Information and Diagnosis:
Yes
Go to Step 12.
I5JB0A110023-01
I5JB0A110024-01
Go to "Fuel Pressure
Check: ".
Go to Step 13.
1A-46
No
Go to Step 11.
Go to "Fuel Pump and
Its Circuit Check: ".
Go to "Ignition Spark
Test: in Section 1H".