Use and Care Manual

5. OBD II Diagnostics
When more than one vehicle control module is detected by the
Scan Tool, you will be prompted to select the module where the data
may be retrieved. The most often to be selected are the Powertrain
Control Module (PCM) and Transmission Control Module (TCM).
CAUTION:
Don’t connect or disconnect any test
equipment with ignition on or engine running.
1. Turn the ignition off.
2. Locate the vehicle's DLC.
3. Plug the Scan Tool cable connector 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. (See Figure 3.1)
6. Press the OK button to wait for the Menu to appear. A
sequence of messages displaying the OBD II protocols will be
observed on the display until the vehicle protocol is detected.
• If the Scan Tool fails to communicate with the vehicle’s
ECU (Engine Control Unit) more than three times, a
“LINKING ERROR!” message shows up on the display.
a. Verify that the ignition is ON
b. Check if the Scan Tool's OBD II connector is
securely connected to the vehicle's
DLC
c. Verify that the vehicle is OBD II compliant
d. Turn the ignition off and wait for about 10 seconds. Turn the
ignition back to on and repeat the procedure from step 5.
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