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10 9620 Professional OBD II Scan Tool
Diagnostic
Connector
Section 2: Diagnosing with theScan Tool
2.1 Preliminary Checks
Before using scan tool, perform a complete visual inspection. Many driveability problems
are found by visual inspection, saving time. Check the following items before proceeding
with scan tool testing:
1. Has vehicle been serviced recently? Sometimes
things get connected in the wrong place, or not at all.
2. Dont take shortcuts. Inspect hoses and wiring which
may be difficult to see because of location beneath air
cleaner housings, alternators and similar
components.
3. Inspect air cleaner and ductwork for defects.
4. Check sensors and actuators for damage.
5. Inspect all vacuum hoses for:
Correct routing. Refer to vehicle service manual, or
Vehicle Emission Control Information (VECI) decal
located in engine compartment.
Pinches and kinks.
Splits, cuts or breaks.
6. Inspect wiring for:
Contact with sharp edges (this happens frequently).
Contact with hot surfaces, such as exhaust manifolds.
Pinched, burned or chafed insulation.
Proper routing and connections.
7. Check electrical connectors for:
Corrosion on pins.
Bent or damaged pins.
Contacts not properly seated in housing.
Bad wire crimps to terminals.
Connector problems are common in engine control
system. Inspect for corrosion, bent, pushed out, or over
expanded pins.
Note: Some connectors use special grease on contacts to prevent corrosion. Do not wipe
off! Obtain grease, from vehicle dealer. It is a special type for this purpose.
2.2 Connecting the Scan Tool
Remove protective cap from data link connector,
if present. Connect scan tool and follow scan
tool prompts. Use scan tool 9V battery to do self-
tests, review codes, code lookup or print data
when connection to vehicle is not required.
When scan tool powers up, a series of screens
are displayed. The screen starts with Welcome
and ends with a Key Button Help.
FRONT
OF CAR
HVAC
CRUISE
BRAKE BOOSTER
TO TRANS
MOD E
EGR
VAC
REG
FUEL
PRESS
REG
EGR
VAC
REG
9RAC2LAB
T
ER
P
A.
M
9620 Professional OBD II Scan Tool 27
4.3.3 Memory Test
Perform the Memory Test if the scan tool has
trouble displaying code definitions or performing
functions that use internal memory. Select
Memory Test from the Tool Self-Test menu and
press the ENTER key.
The test begins immediately and displays a
message Memory Test followed by periods as
internal memory is tested.
When done, a message displays indicating
whether the test passed or failed. Press ENTER
to return to the Tool Self-Test menu.
4.3.4 Printer Test
If you cannot print from the scan tool, select
Printer Test and press the ENTER key. Refer to
section Changing the Printer Settings on
page20.
4.4 Technical Support
1-800-228-7667 (8:00 - 6:00 EST Monday - Friday), or send email to
tech_support@actron.com. Be prepared to provide the scan tools Software ID.
Memory Test Passed!
Press ENTER To Cont
Memory Test Failed
SW ID = F1E8
Press ENTER To Cont
Tool Self-Test |
1) Display Test
2) Keyboard Test [
`3) Memory Test
Memory Test . . . . .
. . . . . . .
Tool Self-Test |
2) Keyboard Test ]
3) Memory Test
`4) Printer Test