Suzuki SWIFT RS415 2017, Руководство по обслуживанию

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1A-106 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE:
• Before performed trouble shooting, be sure to read the “Precautions of ECM Circuit Inspection: ”.
• When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the
special tool to ECM and/or the ECM connectors referring to “Inspection of ECM and Its Circuits: ”.
• Upon completion of inspection and repair work, perform “DTC Confirmation Procedure” and
confirm that the trouble has been corrected.
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2. Go to “Engine and
Emission Control
System Check: ”.
2 Does fuel level meter indicate “E” level (empty)? Add fuel and recheck. Go to Step 3.
3 Ignition system check
1) Check spark plug and ignition spark of cylinder where
misfire occurs, referring to “Spark Plug Inspection: in
Section 1H” and “Ignition Spark Test: in Section 1H”.
Are they in good condition?
Go to Step 4. Faulty ignition coil, wire
harness, spark plug or
other system parts.
4 Fuel injector circuit check
1) Using sound scope, check each injector operating sound
at engine cranking or idling.
Do all injectors make operating sound?
Go to Step 5. Check coupler
connection and wire
harness of injector not
making operating sound
and injector itself. If OK,
substitute a known-
good ECM and recheck.
5 Fuel pressure check
1) Check fuel pressure referring to “Fuel Pressure Check: ”.
Is check result satisfactory?
Go to Step 6. Repair or replace fuel
system.
6 Fuel injector check
1) Check fuel injector(s) referring to “Fuel Injector
Inspection: in Section 1G”.
Is check result satisfactory?
Go to Step 7. Replace defective
injector.
7 Ignition timing check
1) Check ignition timing referring to “Ignition Timing
Inspection: in Section 1H”.
Is check result satisfactory?
Go to Step 8. Check related sensors.
8 EGR system check
1) Check EGR system referring to “EGR System
Inspection: in Section 1B”.
Is check result satisfactory?
Go to Step 9. Repair or replace EGR
system.
9 Engine mechanical system check
1) Check engine mechanical parts or system which can
cause engine rough idle or poor performance.
• Engine compression (Refer to “Compression Check:
in Section 1D”.)
• Valve lash (Refer to “Valve Lash (Clearance)
Inspection: in Section 1D”.)
• Valve timing (Refer to “Timing Chain and Chain
Tensioner Removal and Installation: in Section 1D”.)
Are they in good condition?
Check wire harness and
connection of ECM
ground, ignition system
and fuel injector for
intermittent open and
short. Repair or replace
defective engine part.