Chrysler Diagnostics

Idle Speed Test

The Idle Speed Test is used to test the functionality of the vehicle idle speed control system. The test allows the user to enter the desired engine speed. The test vehicle should respond by match- ing the speed commanded. If the vehicle matches the comanded engine speed, the idle speed control system is functioning prop- erly.

NOTE: Idle Speed Test is only available on 1989-1995 Chrysler vehicles.

From the Device Controls Menu:

1.Select Idle Speed Test. •Use UP or DOWN arrow key until Idle Speed Test is highlighted.

•Press ENTER.

Device Controls Menu

Switch Test

Actuator Test

 Idle Speed Test 

Review Data

Print Data

Tool Setup

7

The Scan Tool instructions may vary depending on the vehicle information entered. However, in all cases it will instruct the user to perform the following:

Set the parking brake.

Turn A/C off.

Start engine and let idle.

! WARNING

Keep hands and tools away from fan and engine

during test.

Carbon monoxide (CO) and other vehicle emissions

! WARNING are harmful or fatal to personnel. Always operate vehicle in a well ventilated area.

2.Check engine idle speed. •Use the UP or DOWN arrow keys to change the Ideal RPM (engine speed). The vehicle should respond by matching the Ideal RPM.

Idle Speed Test

Actual RPM

0

Ideal RPM

800

  To Change RPM

3.Return to the Device Controls Menu. •Press BACK.

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Actron CP9190 manual Idle Speed Test, During test, Return to the Device Controls Menu. Press Back