GMC 2001 Envoy - Manual (Page 377)

6-70
Name Usage
TRL TRN Trailer Left Turn
TRR TRN Trailer Right Turn
TRL B/U Trailer Back - Up Lamps
VEH B/U Vehicle Back - Up Lamps
RT TURN Right Turn Signal Front
LT TURN Left Turn Signal Front
LT TRN Left Turn Signal Rear
Name Usage
RT TRN Right Turn Signal Rear
RR PRK Right Rear Parking Lamps
TRL PRK Trailer ParkingLamps
LT LOW Low - Beam Headlamp, Left
RT LOW Low - Beam Headlamp, Right
FRPRK Front Parking Lamps
INT BAT I/P Fuse Block Feed
ENG I Engine Sensors/Solenoids, MAF,
CAM, PURGE, VENT
ECM B Engine Control Module, Fuel
Pump, Module, Oil Pressure
ABS Anti - Lock Brake System
ECM I Engine Control Module Injectors
A/C Air Conditioning
LT HI High - Beam Headlamp, Left
RT HI High - Beam Headlamp, Right
HORN Horn
BTSI Automatic Transmission Shift
Lock Control System
B/U LP Back - Up Lamps
DRL Daytime Running Lamps
IGN B Column Feed, IGN 2, 3, 4