Full Product Manual

and European vehicles, 1996 and newer (including light trucks), sold in the

United States must be OBD II compliant.

A small number of 1994 and 1995 model year gasoline vehicles are OBD II

compliant. To verify if a 1994 or 1995 vehicle is OBD II compliant, check the

Vehicle Emissions Control Information (VECI) Label which is located under

the hood or by the radiator of most vehicles. If the vehicle is OBD II

compliant, the label will designate “OBD II Certified”. Additionally,

Government regulations mandate that all OBD II compliant vehicles must

have a “common” sixteen-pin Data Link Connector (DLC).

For your vehicle to be OBD II compliant it must have a 16-pin DLC (Data

Link Connector) under the dash and the Vehicle Emission Control

Information Label must state that the vehicle is OBD II compliant.

Product Troubleshooting

This section describes problems that may be encountered while using the

scan tool.

Vehicle Linking Error

A communication error occurs if the scan tool fails to communicate with the

vehicle’s ECU (Engine Control Unit). Perform the following steps to resolve

error:

 Verify that the ignition is ON.

 Ensure the scan tool’s OBD II connector is securely

connected to the vehicle’s DLC.

 Verify that the vehicle is OBD II compliant.

 Turn the ignition off and wait for about 10 seconds. Turn the ignition

back to on and continue the testing.

 Verify the control module is not defective.

Operating Error

If the scan tool freezes, then an exception occurs or the vehicle’s ECU

(Engine Control Unit) is too slow to respond to requests. You need to do the

following to reset the tool:

 Reset the scan tool.