Actron Professional Enhanced Scan Tool 9640A - Manual (Page 95)

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Chrysler Diagnostics
7
To test a switch, press the switch and
check the tool display. If the switch is
available for testing, the tool displays
the current status of the switch.
To finish testing switch, press the
switch again. The switch status on the
bottom should change if the switch is working.
To test another switch, press the BACK key to return to the Select SW to Test
screen. To return to the Chrysler Functions list, press the
FUNC
key.
ACTUATOR TEST
The Actuator Test is used to check the operation of many of the computer-con-
trolled relays and solenoids. This is also helpful for checking voltages and output
signals. Use a voltmeter to check the output signals at each relay and solenoid
to verify their operation. To do this, take voltage readings at relays and solenoids
before beginning this test. Then activate the test to energize the relays and sole-
noids. Check voltages again to determine if they are functioning properly.
Remember to write down readings for reference.
✓
Not all vehicles have the same actuators. The tool will not allow the test
of actuators not present on the vehicle.
Some Actuator Tests may activate the fuel pump. Do not
disconnect any fuel lines or remove fuel injectors unless
it is required by the vehicle service manual. Be sure to
reconnect all lines when testing is complete.
Gasoline leaking onto hot engine and exhaust parts can
cause fire or other hazardous conditions.
Select Actuator Test and press
ENTER .
Follow all instructions on the tool
screen. It will prompt the user when to
turn the ignition key ON, do not start the
engine.
✓
Actuators for the Engine and Transmission are combined into one list
when applicable.
Select an actuator to be tested from the
list and press
ENTER .
If the actuator selected is not available
for the vehicle under test, the tool will
indicate so. If the actuator is available,
the tool will energize that actuator
Use a voltmeter to test the actuator for
correct operation. To test another actu-
ator on the list, press the
BACK
key.
Testing Switch:
A/C CLUTCH REL
SWITCH IS HIGH ~
! CAUTION
! WARNING
Chrysler Functions |
6)Switch Test ]
` 7)Actuator Test [
8)Idle Speed Test ~
Pick Actuator Test |
` A/C CLCH REL
ALL SOLS/RELS [
AIS SW SOL ~
Testing Actuator:
A/C CLCH REL
BACK To Select
Different Actuator~