Troubleshooting Guide

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.
3.11 Product Troubleshooting
This part describes problems that you may
encounter 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).
You need to do the following to identify the error:
1. Verify that the ignition is ON.
2. Check if the Scan Tool's OBD II connector is
securely connected to the vehicle's DLC.
3. Verify that the vehicle is OBD II compliant.
4. Turn the ignition off and wait for about 10 seconds.
Turn the ignition back to on and continue the testing.
5. Verify the control module is not defective.
[e-mail]
29
1-800-348-5004