Anti-Lock Brake System & ASR - BOSCH 2S Micro: Description

The Bosch 2S Micro Anti-Lock Brake System (ABS) and Acceleration Slip Regulation (ASR) system increases vehicle control during severe deceleration and acceleration on most road surfaces. The ABS/ASR system consists of adjuster assembly, cruise control cut-off relay, Electronic Brake And Traction Control Module (EBTCM), spark retard table added to ECM, lateral accelerometer, modulator valve assembly, TP sensor module, 4 wheel speed sensors and warning lights. See Fig 1.

Fig 1: Identifying ABS/ASR System Components

Courtesy of GENERAL MOTORS CORP.