Suzuki Wagon R Plus RB310 - Idle Air Control (IAC) Valve Check

6E2-20 ENGINE AND EMISSION CONTROL SYSTEM (M13 ENGINE)
Installation
1) Install new gasket (2) to throttle body (1).
2) Install IAC valve (3) to throttle body (1).
Tighten IAC valve screws to specified torque.
Tightening torque
IAC valve screw (a): 3.5 N·m (0.35 kg-m, 2.5 lb-ft)
3) Install throttle body referring to “Throttle Body Removel and
Installation” in this section.
Idle air control (IAC) valve check
1) Remove IAC valve referring to “Idle Air Control (IAC) Valve
Removal and Installation” in this section.
2) Connect each connector to IAC valve (1) and TP sensor.
3) Check that rotary valve (2) of lAC valve opens and closes
once and then stops in about 60 ms as soon as ignition
switch is turned ON.
4) Install IAC valve referring to “Idle Air Control (IAC) Valve
Removal and Installation” in this section.
1
2
3
(a)
NOTE:
• This check should be performed by two people, one
person turns on ignition switch while the other checks
valve operation.
• As valve operation is momentary, it may be over-
looked. To prevent this, perform this operation check 3
times or more continuously.
If rotary valve of lAC valve does not operate at all,
check wire harness for open and short. If wire harness
is in good condition, replace lAC valve and recheck.