GM Service Manual Online
For 1990-2009 cars only

Abbreviation

Definition

BPMV

Brake Pressure Modulator Valve

CKT

Circuit

DRP

Dynamic Rear Proportioning

DTC

Diagnostic Trouble Code

DUMP

Dump Valve

EBCM

Electronic Brake Control Module

EHCU

Electro-Hydraulic Control Unit

ISO

Isolation Valve

LPA

Low Pressure Accumulator

RWD

Rear Wheel Drive

S4WD

Selectable Four Wheel Drive

VSS

Vehicle Speed Sensor

WSS

Wheel Speed Sensor