Appendix J: Introduction

The Smog Check OBD II Reference provides information and test instructions for inspecting vehicles with known OBD II functional test difficulties.

• Table 1  and Table 1a  list known OBD II testability issues.
• Table 2  data no longer exists in this document, but the information is provided by BAR through a link to the National OBD Clearinghouse (http://obdclearinghouse.com/index.php?body=can). Many CAN-equipped gasoline vehicles currently cannot be OBD II tested. The EIS should automatically bypass the OBD II test for CAN equipped vehicles. However, if the EIS prompts for an OBD II test, bypass the test by answering "No" to the OBD II functional test prompt. Unless otherwise instructed by BAR, do not answer "No" to bypass the OBD II functional test for any other OBD II equipped vehicles.
• Table 3  identifies Flexible Fuel Vehicle(s) (FFV) that have a U.S. EPA exception from performing some OBD II functions while under operation with an alternative fuel. Although some OBD II functionality may not be present, the OBD II portion of the Smog Check shall be performed as instructed in the Smog Check Inspection Manual. The OBD II test shall NOT be bypassed by the EIS or the technician.

To ensure that any special test processes are appropriately applied, always select the correct vehicle from the vehicle information (make, model, engine size, etc.) provided from the VLT by the BAR-97 inspection menu lists.