Suzuki SY413 Service Manual page 2590

6-14 ENGINE (ENGINE WITHOUT WU TWC)
ENGINE DIAGNOSTIC FLOW CHART (FOR J18 ENGINE MODEL)
This vehicle is equipped with an electronic fuel injection system, which controls the A/F mixture, ignition timing,
emission, etc. suitably to engine conditions.
When diagnosing a trouble in the engine including this system, follow chart given below to obtain correct result
smoothly.
NOTE:
For the details of each step, refer to the following pages.
Vehicle brought to workshop.
1 Customer complaint analysis
Problem symptom confirmation
2
3 Diagnostic trouble code check, record and clear
Normal code
appeared
4 Visual inspection
Trouble
identified
Repair or replace faulty part
5
CHECK AND ENGINE DIAG-
NOSIS TABLE" in this section.
10 Perform final confirmation
test.
Trouble does
not occur
END
Trouble not
identified
7 Diagnostic trouble code
check
Normal code
appeared
Repair or replace refer-
ring to "BASIC ENGINE
Trouble occurs
Malfunction code
appeared
4 Visual inspection
Trouble not
identified
6 Recheck problem symptom
and perform driving test
Trouble symptom
identified
7
Malfunction code
appeared
8 Inspect and repair refer-
ring to "DIAGNOSTIC
TROUBLE CODE FLOW
CHART" in Section 6E3.
Trouble
identified
Repair or replace faulty
part
Trouble symptom
not identified
Diagnostic trouble code
check
Normal code
appeared
9 Check for intermittent prob-
lems, referring to
"INTERMITTENT TROUBLE DIAG-
NOSIS" in Section 6E3 and related
circuit of diagnostic trouble code re-
corded in Step 3.