GM Service Manual Online
For 1990-2009 cars only

When pressing the tire inflation reset switch, the Electronic Brake Traction Control (EBTCM) receives a ground signal in circuit 920. The tire inflation reset switch receives ground through circuit 1550. The tire inflation reset switch is located in the fuse block. Refer to Fuse Block Schematics in Wiring Systems for the location of the tire inflation reset switch.

Refer to General System Description in Antilock Brake System for more information regarding the EBTCM.

Refer to Instrument Cluster Circuit Description in Instrument Panel, Gauges and Console for more information regarding the instrument cluster.

Refer to Data Link Connector Circuit Description in Wiring Systems for more information regarding the Class II serial data link.