XL-7 Limited 4WD V6-2.7L (2002)
Idle Speed: Testing and Inspection
Idle Speed/Idle Air Control (IAC) Duty Inspection
Before idle speed/IAC duty check, make sure of the following.
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Lead wires and hoses of engine/emission control systems are connected securely.
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Accelerator cable is adjusted.
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Ignition timing is within specification.
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All accessories (wipers, heater, lights, A/C, etc.) are out of service.
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Air cleaner has been properly installed and is in good condition.
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ECM (PCM) does not detect any malfunction DTC.
After above items are all confirmed, check idle speed and IAC duty as follows.
NOTE: Before starting engine, place transmission gear shift lever in "Neutral" (shift selector lever to "P" range for A/T vehicle), and set parking brake
and block drive wheels.
Using SUZUKI Scan Tool
1. Connect SUZUKI scan tool to DLC with ignition switch OFF.
Special tool
(A): SUZUKI scan tool
2. Warm up engine to normal operating temperature.
3. Check IAC duty and idle speed by using "Data List" mode of SUZUKI scan tool.
Engine idle speed
A/C OFF: 690 ± 50 r/min.
A/C ON: 750 ± 50 r/min.
IAC duty at specified idle speed
5-40% (at A/C OFF)
4. If duty and/or idle speed is out of specifications, check idle air control system referring to "DTC P0506 / P0507: Idle Control System RPM Lower
than Expected / Higher than Expected:".
5. Check that specified engine idle speed is obtained with A/C ON if vehicle is equipped with A/C. If not, check A/C ON signal circuit and idle air
control system.