GM Service Manual Online
For 1990-2009 cars only

The following abbreviations are frequently used in this section:

    â€¢ A--Amps
    â€¢ ABS--Antilock Brake System
    â€¢ CKT--Circuit
    â€¢ CPA--Connector Position Assurance
    â€¢ DLC--Data Link Connector
    â€¢ DTC--Diagnostic Trouble Codes
    â€¢ DMM--Digital Multimeter
    â€¢ EBCM--Electronic Brake Control Module
    â€¢ EBTCM--Electronic Brake Traction Control Module
    â€¢ ESB--Expansion Spring Brake
    â€¢ TCS--Traction Control System
    â€¢ GND--Ground
    â€¢ IGN--Battery Voltage with Ignition to RUN position
    â€¢ Infinite--Open Circuit/Unmeasurable High Resistance
    â€¢ LDM--Lamp Driver Module
    â€¢ ohms--Ohms