Suzuki Ignis Service Manual page 3354

Step
5 Air Intake System Check
1) Check air intake system for clog and inhal-
ing.
Is check result satisfactory?
6 Idle Air Control Valve Operation Check
1) Check idle air control valve for operation
referring to "Idle air control (IAC) valve oper-
ation check" in this section.
Is check result satisfactory?
7 Idle Air Control Valve Circuit Check
1) Disconnect connector from idle air control
valve with ignition switch turned OFF.
2) Turn ON ignition switch, measure voltage
between "BLK/RED" wire terminals of idle
air control valve connector and engine
ground.
Is voltage 10 – 14 V?
8 Idle Air Control Valve Check
1) Check idle air control valve for resistance
referring to "Idle air control (IAC) valve
check" in this section.
Is check result satisfactory?
9 Idle Air Control System Check
1) Check parts or system which can cause
engine low or high idle.
• EGR valve malfunction (leakage)
• EVAP system malfunction
• Accessory engine load
• Engine mechanical (engine compression)
• Throttle body malfunction
• PCV system malfunction
• Accelerator cable (get stuck on)
• Brake booster malfunction
Are they in good condition?
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-153
Yes
Go to Step 6.
Go to Step 9.
Go to Step 8.
Go to Step 9.
Substitute a known-good
ECM and recheck.
No
Repair or replace.
Go to Step 7.
"BLK/RED" wire in open
or high resistance circuit.
Replace idle air control
valve.
Repair or replace.