Suzuki Swift User Manual page 248

6-1-92 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
INSPECTION
STEP
1 Was "ENGINE DIAG. FLOW TABLE" performed?
2 Check Idle Air Control System.
When using SUZUKI scan too:
1) Connect SUZUKI scan tool to DLC with ignition
switch OFF, set parking brake and block drive
wheels.
2) Warm up engine to normal operating
temperature.
3) Clear DTC and select "MISC TEST" mode on
SUZUKI scan tool. See Fig. 1.
Is it possible to control (increase and reduce)
engine idle speed by using SUZUKI scan tool?
When not using SUZUKI scan tool:
1) Remove IAC valve from throttle boy referring to
"IAC Valve Removal" in Section 6E2.
2) Check IAC valve for operation referring to "IAC
Valve Inspection" in Section 6E2. See Fig. 2.
Is check result satisfactory?
3 Check Wire Harness for Open and Short.
1) Turn ignition switch OFF.
2) Disconnect IAC valve connector.
3) Check for proper connection to IAC valve at
each terminals.
4) If OK, disconnect ECM (PCM) connector.
5) Check for proper connection to ECM (PCM) at
C01-6 terminal.
6) If OK, check "R/B", "V/W" and "B" circuit for
open and short.
Are they in good condition?
Fig. 1 for Step 1
When using SUZUKI scan tool:
ACTION
Fig. 2 for Step 2
When not using SUZUKI scan tool:
YES
Go to Step 2.
Intermittent trouble or
faulty ECM (PCM).
Check for intermittent
referring to "Intermittent
and Poor Connection"
in Section 0A.
Replace IAC valve and
recheck.
NO
Go to "ENGINE DIAG.
FLOW TABLE".
Go to Step 3.
Repair or replace.