18
4
OBDII Diagnostics
The OBD II Diagnostics function is a fast-access option that allows you to
carry out a quick test on the engine system of OBD II vehicles.
When more than one vehicle control module is detected by the scan tool,
you will be prompted to select the module with retrievable data. The Power
train Control Module [PCM] and Transmission Control Module [TCM] are
the most commonly scanned modules.
CAUTION:
Don’t connect or disconnect the scan tool while the ignition is on
or the engine running.
1) Turn the ignition off.
2)
Locate the vehicle’s 16-pin Data Link Connector (DLC).
3) Plug the tool in
to the vehicle’s DLC.
4) Turn the ignition on. Engine can be off or running.
5) Turn on the scan tool. Select
OBDII
from the
Main Screen
.
6) Press the
OK
button to wait for the Menu to display. The tool will
display OBDII protocols until it has detected the vehicle’s
communication protocol.
If the scan t
ool fails to communicate with the vehicle’s ECU (Engine
Control Unit) more than three times,
a “LINKING ERROR!” message
displays on the tool.
Verify the ignition is ON.
Check if the scan t
ool’s OBD II cable is securely connected to the
vehicle’s DLC.
Verify that the vehicle is OBD2 compliant.
Turn the ignition off and wait for about 10 seconds. Turn the ignition
back on and repeat step 5.
If the “LINKING ERROR” message continues to display, contact your
local distributor or customer service for assistance.
7) View a summary of system status (MIL status, DTC counts, Monitor
status) on screen. Press
ESC
button for
Diagnostic Menu
to display.