Actron 9040 - Manual (Page 4)

4
Control and Indicators
The scan tool is designed to be as intuitive as possible. All menu and lists operate the
same way.
• ENTER Key - selects displayed items and moves cursor in the Code Lookup
function.
• YES/UP Arrow Key - responds yes to prompts, scrolls up and changes numbers
in Code Lookup.
• NO/DOWN Arrow Key - responds no to prompts, scrolls down and changes
numbers in Code Lookup.
• BACK Key - return to the previous screen or exit a function.
• LCD DISPLAY - A 2-line x 16-character display
with contrast adjust.
• OBD II (J1962) Adapter Cable - provides
power to the scanner and a link to the vehicle.
Code Scanner Functions
1. Connect the Code Scanner to the vehicle DLC, it
will not harm the vehicle.
2. The name and software ID displays momentarily.
3. Press ENTER to go to the Main Menu.
4. The display contrast can be adjusted for different
viewing angles. Select Display Contrast and use
the UP / DOWN arrow keys to increase and de-
crease the contrast. The setting will remain even
when the power is disconnected.
NOTE: If an Operating Error message is displayed, make sure the OBD II J1962
adapter cable is securely attached, and the ignition key is ON. Cycle the ignition key
to OFF for 10 seconds, then ON. This may be required to reset the PCM. Press the
BACK key to test again. If the problem still exists, refer to Troubleshooting Tips.
NOTE: Do not disconnect the Code Scanner until codes have been recorded. When
power is removed, Code Scanner memory is cleared.
Read Codes
The Read Codes function retrieves Diagnostic Trouble Codes (DTCs) from the vehicle’s
computer modules. This function can be performed with the Key On-Engine Off (KOEO)
or Key On-Engine Running (KOER). Because DTCs indicate a circuit or system failure
(not component failures) they are very useful in isolating vehicle system malfunctions.
There are two types of codes, Malfunction Indicator Lamp (MIL) codes and Pending
codes. An icon (;) will be displayed next to DTCs that are Pending codes.
MIL Codes: These codes cause the computer to illuminate the MIL when an emis-
sion related or driveability fault occurs. The MIL is also known as the “service engine
soon” or “check engine lamp”. The computer illuminates the MIL when the engine is
running and the DTC remains in memory until the fault is repaired.
Pending Codes: These codes are also referred as “continuous monitor” and “matur-
ing codes”. An intermittent fault causes the computer to store a code in memory. If the
fault does not occur within 40 warm-up cycles, the code will be cleared from memory.
If the fault occurs a specific number of times, the code matures into a DTC and the
MIL turns on.
CAUTION!
Avoid Cooling Fan! It May
Turn On During Test.
Operating the Code Scanner