GMC Sierra 2000 Owner's Manual page 345

Name Usage
-
ECM B Fuel Pump, PCM/VCM
RR DEFOG Rear Window Defogger
-
IGN E Auxiliary Fan Relay Coil,
A/C Compressor Relay,
Hot Fuel Module, Dual Tanks
HORN Horn, Underhood Lamps
AUX FAN Auxiliary Fan
Name Usage
-
ECM 1 Injectors, PCM/VCM, Fuel Solenoid
(Diesel Engine, Fuel Control Module
(Diesel Engine)
-
HTD ST FR Not Used
A/C Air Conditioning
HTD MIR Not Used
-
ENG 1 Ignition Switch, EGR, Canister
Purge, EVRV Idle Coast Solenoid,
MAF, Heated O
(Diesel Engine), Water Sensor
(Diesel Engine), Boost Solenoid
(Diesel Engine), EPR (Diesel Engine)
-
HTD ST RR Not Used
LIGHTING Headlamp and Panel Dimmer Switch,
Fog and Courtesy Fuses
BATT Battery, Fuse Block Busbar
IGN A Ignition Switch
IGN B Ignition Switch
-
ABS Anti Lock Brake Module
BLOWER High Blower Relay
STOP/HAZ Stoplamps
HEATED Not Used
SEATS
, Fuel Heater
2
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