Idle Speed Test; Sensor Test - Actron 9640 User Manual

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 matching the speed commanded. If the vehicle
matches the demanded engine speed, the idle speed control system is
functioning properly.
Select Idle Speed Test from the
Chrysler Functions list and press
ENTER.
The tool instructions may vary
depending on the vehicle information
entered. However, in all cases it will
instruct the user to perform the following:
1) Set the Parking Brake.
2) Turn A/C off.
3) Start engine and let idle.
! WARNING
! WARNING
Use the UP/DOWN arrow keys to
change the Ideal RPM (engine speed).
The vehicle should respond by
matching the Ideal RPM.
Press the BACK or FUNC key to end
the test and return to the Chrysler
Functions list.

SENSOR TEST

The Sensor Test is used to view the sensor outputs of some monitored vehicle
systems. The Sensor Test is similar to View Data, as it allows the user to read
the current output of various sensors throughout the vehicle.
Select Sensor Test from the Chrysler
Functions list and press ENTER.
Turn ignition key On — Engine can be Off or Running. Press ENTER and the
scan tool will build a list of sensors and display them.
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 7 – 9
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.
Chrysler Functions
6)Switch Test
7)Actuator Test
` 8)Idle Speed Test ~
Idle Speed Test
Actual RPM
Ideal RPM
][ To Change RPM
Chrysler Functions
` 9)Sensor Test
10)Controller Info [
11)Reset EMR Lamp ~
?
]
[
750
755
~
7
?
]