Idle Air Control System Description - Suzuki GF60A Service Manual

Throttle Body
• The throttle body assembly consists of the main bore, throttle valve and MAP sensor / TPS (Throttle Position
Sensor) / IAT sensor.
• Three sensors (MAP sensor / TPS / IAT sensor) are combined into one unit that is installed on top of the throttle
body.
• The throttle body adjusts the intake air amount with the throttle valve which is connected to the throttle lever linkage.
• The TPS informs the ECM of the throttle valve opening angle.
• The IAT sensor informs the ECM of the intake air temperature.
• The MAP sensor informs the ECM of the intake manifold pressure.
NOTE
Do not try to adjust or remove any of the throttle body component parts (Sensor, throttle valve, throttle
stop screw, etc.).
These components have been factory adjusted to precise specifications.

Idle Air Control System Description

IAC Valve/Passage
The IAC valve is a stepper motor type mounted on the intake manifold.
Its purpose is to control the amount of intake air flowing through the IAC passage.
The IAC valve consists of a stepper motor, rod, valve and other parts.
As the stepper motor is controlled by signals from the ECM, valve position changes will increase or decrease the air
flow through the IAC passage.
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1. Throttle body assembly
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1. IAC valve
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IAJ611170014-02
2. MAP sensor / TPS / IAT sensor
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Fuel System: 1G-9
ZAJ6111701005