GMC 2001 Safari Owner's Manual page 317

Feed Usage
AUX B Upfitter Battery Feed
AUX A Upfitter Accessory Feed
Relay Usage
A/C Relay Rear Heat and Air Conditioning
-
Upfitter ACCY Upfitter Accessory
Relay
Starter Starter
Enable Relay
A/C Air Conditioning
Enable Relay
Headlamps Headlamps
Relay
Fuel Pump Relay Fuel Pump
Fuse/Circuit Usage
Breaker
-
UPFITTER Upfitter Battery Power Stud,
BATT Trailer Wiring Harness
-
UPFITTER Upfitter Accessory Relay
ACCY
Spare Not used
Spare Not used
Spare Not used
-
ECM 1B Fuel Pump Relay and Motor,
VCM, Oil Pressure Switch/Sender
6-65