General Description

GENERAL INFORMATION
Antilock Brake System (ABS) has been designed to improve the controllability and steerability of a vehicle during braking that would cause at least one of the wheels to lock. ABS accomplishes this by controlling the hydraulic brake pressure applied to each front caliper and the rear wheel cylinders. Antilock braking occurs only when Electronic Brake Control Module (EBCM) monitors wheel speeds and determines that at least one wheel is about to lose traction during braking. If required, EBCM will allow hydraulic modulator to change the brake pressures to provide the driver with maximum vehicle controllability. ABS operation is available from approximately 5 km/h (3 mph) to the maximum vehicle speed.

NOTE: ABS installed to this model cannot increase brake pressure above master cylinder pressure applied by the driver and cannot apply the brake by itself.

ABBREVIATIONS
Antilock Brake System: (ABS)
Alternating Current: (AC)
Battery Voltage: (B+ or +B)
Circuit: (CKT)
Data Link Connector: (DLC)
Diagnostic Trouble Code(s): (DTC(s))
Electronic Brake Control Module: (EBCM)
Electrically Erasable Programmable Read Only Memory: (EEPROM)
Expansion Spring Brake: (ESB)
Multiple Driver Interface: (MDI)

ABS ACTIVE LIGHT
The blue "ABS ACTIVE" light identifies when the system is working to provide antilock braking.

WIRING HARNESS
The wiring harness is the mechanism by which the EBCM is electrically connected to power and ground, wheel speed sensors, motors, solenoids, fuses, switches, indicators, the enable relay and the serial communications port. The components, considered part of the wiring harness, are the wires that provide electrical interconnection and connectors (terminals, pins, contacts or lugs) that provide an electrical/mechanical interface from the wire to a system component.