Chrysler Diagnostics
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7
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.
✓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.
Keep hands and tools away from fan and engine
during test.
Carbon monoxide (CO) and other vehicle emissions
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.
3. Return to the Device Controls Menu.
•Press BACK.
Switch Test
Actuator Test
Idle Spe ed Test
Review Data
Print Data
Tool Setup
Device Controls Menu
!
WARNING
!
WARNING
Actual RPM 0
Ideal RPM 800
To Change RPM
Idle Spe ed Test