Suzuki Liana RH413 Service Manual page 149

DTC Confirmation Procedure
1) Turn ignition switch OFF.
2) Clear DTC with ignition switch ON.
3) Start engine and run it at idle for 1 min.
4) Check DTC and pending DTC.
DTC Troubleshooting
Step
1 Was "Engine and Emission Control System Check"
performed?
2 Is SUZUKI scan tool available?
3 Check idle air control system
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.
Is it possible to control (increase and reduce) engine idle
speed by using SUZUKI scan tool?
4 Check idle air control system
1) Remove IAC valve from throttle body referring to "Idle Air
Control (IAC) Valve Removal and Installation in Section
1C".
2) Check IAC valve for operation referring to "Idle Air
Control (IAC) Valve Inspection in Section 1C".
Is check result satisfactory?
5 Check wire harness for open and short
1) Turn ignition switch OFF.
2) Disconnect IAC valve coupler.
3) Check for proper connection to IAC valve at each
terminals.
4) If OK, disconnect ECM connector.
5) Check for proper connection to ECM at "C41-6" terminal.
6) If OK, check "BLK/RED", "GRN/RED" and "BLK" circuit
for open and short.
Are they in good condition?
Action
IYSY01111094-01
Engine General Information and Diagnosis:
Yes
Go to Step 2.
Go to Step 3.
Intermittent trouble or
faulty ECM.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
Intermittent trouble or
faulty ECM.
Check for intermittent
referring to "Intermittent
and Poor Connection
Inspection in Section
00".
Replace IAC valve and
recheck.
1A-98
No
Go to "Engine and
Emission Control
System Check".
Go to Step 4.
Go to Step 5.
Go to Step 5.
Repair or replace.