Description & Operation

WARNING: Vehicles are equipped with air bag supplemental restraint system. Before attempting ANY repairs involving steering column, instrument panel or related components, see AIR BAG SAFETY PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article.

Instrument clusters from model year 2000 are integrated into the "Powertrain" CAN Data Bus network (may also be know as "CAN-Bus" or "Data-Bus").

The Data Bus On Board Diagnostic (OBD) interface J533 (which is integrated into the instrument cluster) enables data to be exchanged between the various CAN-Bus networks and the Data Link Connector (DLC) "K-wire".

The Data Bus On Board Diagnostic (OBD) interface J533 has specific On Board Diagnostic (OBD) capabilities via address word 19 "Gateway", and must always be coded separately from the instrument cluster.