Suzuki Baleno Manual page 1410

6-2-62 ENGINE GENERAL INFORMATION AND DIAGNOSIS (J18 ENGINE WITH WU TWC)
STEP
6 Check fuel level sensor referring to "Fuel Level Sensor
Inspection" in Section 8C.
Is check result satisfactory?
7 Check MAF sensor referring to "MAF Sensor Inspection" in
Section 6E4.
Is check result satisfactory?
8 Check ECT sensor referring to "ECT Sensor Inspection" in
Section 6E4.
Is check result satisfactory?
9 Check HO2S-1 referring to Step 3 of DTC P0130 Diag.
Flow Table.
Is check result satisfactory?
ACTION YES
Go to Step 7. Faulty fuel level
sensor or its circuit.
Got to Step 8. Faulty MAF sensor
or its circuit.
Go to Step 9. Faulty ECT sensor
or its circuit.
Substitute a known- Faulty HO2S-1 or its
good ECM and circuit.
recheck.
NO