Diesel Data: Automotive Repair

Trac Off

Traction off data is received from Antilock Brake System (ABS) through the class II serial data link. This indicator can be on if the Electronic Brake Traction Control Module (EBTCM) either detects a condition that causes the traction control system to be inhibited, or if the traction control switch is turned off. Refer to General System Description in Antilock Brake System for more information.