Chevrolet 2002 Astro Owner's Manual page 331

Relay Usage
A/C Relay Rear Heat and
(Rear Heat Air Conditioning
and A/C)
-
Upfitter ACCY Upfitter Accessory
Relay
Starter Starter
Enable Relay
A/C Enable Relay Air Conditioning
Headlamps Relay Headlamps
Fuel Pump Relay Fuel Pump
Fuse/Circuit Usage
Breaker
-
UPFITTER BATT Upfitter Battery Power Stud,
Trailer Wiring Harness
-
UPFITTER ACCY Upfitter Accessory Relay
Spare Not used
Spare Not used
Spare Not used
-
ECM 1B Fuel Pump Relay and Motor,
VCM, Oil Pressure Switch/Sender
Fuse/Circuit Usage
Breaker
HORN Horn Relay and Horn
A/C COMP A/C Enable Relay and
Compressor
RR HTR/AC Rear Heater and A/C
ATC Active Transfer Case
FRT HVAC Front Heater and A/C
-
ENG I Oxygen Sensors, Camshaft
Position Sensor, Mass Air Flow
Sensor, Evaporative Emission
Canister Vent Solenoid
-
IGN E A/C Enable Relay Coil
-
ECM I Fuel Injectors 1
Position Sensor, VCM,
Coil Driver Module (EST),
Ignition Coil
Blank Not Used
RH HDLMP Right Headlamp
LH Headlamp Left Headlamp
Blank Not Used
Blank Not Used
-
L Van
-
6, Crankshaft
6-71