TCS Switch Led Inoperative: Notes

Fig 1: TCS Switch LED Inoperative Schematic

Courtesy of GENERAL MOTORS CORP.

When the traction control is enabled, the Electronic Brake and Traction Control Module (EBTCM) illuminates the TCS LED. When the TRAC switch is active, the EBTCM grounds circuit 1660 illuminating the TCS LED. When traction control is disabled, the EBTCM removes the ground from circuit 1660.