Full Product Manual

8
OBD II Diagnostics
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 into the vehicle’s DLC.
4) Turn the ignition on. Engine can be off or running.
5) Turn on the scan tool. Use the UP/DOWN scroll button to select
OBDII/EOBD from the Main Screen.
6) Press the OK button to wait for the Menu to display. With the embedded
AutoVIN technology in the tool, a sequence of messages displaying the
OBDII protocols will be observed on the display until the test vehicle’s
protocol is detected. The test vehicle information will display as below
once it is done. Press OK to continue.
Figure 3-1 Sample Vehicle Info Screen
 If the scan tool 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 tool’s OBD II cable is securely connected to the
vehicle’s DLC;