Suzuki Swift Sport 2004 Service & Repair Manual page 149

1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and print Freeze Frame Data or write them down using scan tool.
3) Clear DTC using scan tool.
4) Start engine and warm up to normal operating temperature.
5) Operate vehicle with condition as noted freeze frame data for 5 min.
6) Stop vehicle and check DTC and pending DTC.
DTC Troubleshooting
NOTE
• 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
1 Was "Engine and Emission Control System Check"
performed?
2 Is there DTC(s) other than fuel system (DTC P0171 /
P0172)?
3 Intake system and exhaust system for leakage check
Are intake system and exhaust system in good condition?
4 Fuel pressure check
1) Check fuel pressure referring to "Fuel Pressure Check".
Is check result satisfactory?
5 Fuel injectors and its circuit check
1) Check fuel injectors referring to "Fuel Injector Inspection
in Section 1G".
Is check result satisfactory?
6 Visual inspection
1) Check MAF sensor and air intake system.
• Objects which block measuring duct and resistor of
MAF sensor.
• Other air flow which does not pass MAF sensor.
Are they in good condition?
7 MAF sensor for performance check
1) With ignition switch turned OFF, install scan tool.
2) Start engine and warm up to normal operating
temperature.
3) Check MAF value using scan tool (Refer to "Scan Tool
Data" for normal value.).
Is each value within specified range?
8 ECT sensor for performance check
1) Check ECT sensor referring to Step 3 and 4 of "DTC
P0118: Engine Coolant Temperature Circuit High".
Is check result satisfactory?
Action
Engine General Information and Diagnosis:
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Go to Step 5.
Go to Step 6.
Go to Step 7.
Go to Step 8.
Go to Step 9.
1A-99
No
Go to "Engine and
Emission Control
System Check".
Go to Step 3.
Repair or replace
defective part.
Repair or replace
defective part.
Faulty injector(s) or its
circuit.
Repair or replace
defective part.
Go to "DTC P0101:
Mass or Volume Air
Flow Circuit Range /
Performance".
Faulty ECT sensor or its
circuit.