Hummer 2003 H2 Owner's Manual page 395

NAME Usage
4WD Four Wheel Drive Switch,
Electronically Controlled
Air Suspension Switch/Module
HTR A/C Not Used
LOCK Power Door Lock Relay
HVAC 1 Inside Rearview Mirror,
Climate Control System
L DOOR Harness Connector
CRUISE Cruise Control
UNLOCK Power Door Unlock Relay
RR FOG LP Not Used
BRAKE Brake Switch
PDM Passenger Door Module
IGN 0 Brake Transmission Shift Interlock,
Powertrain Control Module,
Transmission
TBC IGN 0 Truck Body Controller
VEH CHMSL Vehicle and Trailer Center
High Mounted Stop Lamp
LT TRLR Left Turn Signal/Stop Trailer
ST/TRN
NAME Usage
LT TRN Left Turn Signals and Sidemarkers
VEH STOP Vehicle Stoplamps, Brake Module,
Electronic Throttle Control Module
BODY Harness Connector
RT TRLR Right Turn Signal/Stop Trailer
ST/TRN
RT TRN Right Turn Signals and Sidemarkers
DDM Driver Door Module
AUX PWR 2 Instrument Panel and Rear Cargo
Area Power Outlets
LOCKS Rear Doors and Liftgate Power
Lock Relay Feed
ECC Not Used
TBC 2C Truck Body Controller
FLASH Flasher Module
CB LT DOORS Left Rear Power Window Circuit
Breaker and Driver Door Module
TBC 2B Truck Body Controller
TBC 2A Truck Body Controller
6-61