Chevrolet Astro (1999) – fuse box diagram

Year of production: 1999

Instrument Panel Fuse Block

The fuse block is located on the lower portion of the instrument panel on the driver’s side.

Chevrolet Astro - fuse box - instrument panel
Chevrolet Astro – fuse box – instrument panel
Fuses/Circuit Breaker Usage
1 Stop/Turn/Hazard Lamps, CHMSL, Chime Module
2 Heated Mirror (Not Used)
3 Courtesy Lamps, Power Outside Mirrors, Glove Box Lamp, Dome Reading Lamps, Vanity Mirror Lamps
4 DRL Relay, DRL Module, Chime Headlamp Switch, Keyless Entry, Cluster, Overhead Console, Interior Lamps Module
5 Rear Defogger
6 Cruise Module, Cruise Control Switch, Electrochromic Mirror
7 Power Outlets, DLC, Subwoofer Amplifier
8 Starter Enable Relay
9 License Plate Lamp, Taillamps, Parking Lamps, Ashtray Lamp, Panel Lights, Trailer Taillamps, Front and Rear Sidemarker Lamps, Door Switch Illumination, Headlamp Switch Illumination, Rear Seat Audio Illumination
10 Air Bag System
11 Wiper Motor, Washer Pump, Upfitter Relay Coil
12 L, M1, M2 Blower Motor, Rear A/C Relay Coil, Front Cont. Temp. Door Motor, HI Blower Relay, Defogger Timer Coil
13 Cigarette Lighter, Door Lock Switches, Dutch Door Release Module
14 Cluster Illum, HVAC Controls, Chime Module, Radio Illumination, Rear Heat Switch Illumination, Rear Wiper/Washer Switch Illumination, Rear Liftgate Switch Illumination, Remote Cassette Illumination, O/H Consol
15 DRL Lamps
16 Front Turn Signals, Rear Turn Signals, Trailer Turn Signals, Back-up Lamps, BTSI Solenoid
17 2000 Series (Main Feed), Rear Seat Audio Controls
18 VCM-Ign 3, VCM-Brake, 4WAL, Cruise Stepper Motor Signal
19 Radio: ATC (Main Feed), 2000 Series (Standby)
20 PRNDL/ Odometer, TCC Enable and PWM Solenoid, Shift A
and Shift B Solenoids, 3-2 Downshift Solenoid
21 Security
23 Rear Wiper, Rear Washer Pump
A (Circuit Breaker) Power Door Lock Relay, 6-way Power Seat, Remote Control Door Lock Receiver, Dutch Door Module, Dutch Door Release
B (Circuit Breaker) Power Windows

Underhood Fuse Block

The underhood fuse block is located toward the rear of the engine compartment on the driver’s side of the vehicle.

Chevrolet Astro - wiring diagram - fuse box - underhood panel
Chevrolet Astro – wiring diagram – fuse box – underhood panel
Feed Usage
AUX B Upfitter Battery Feed
AUX A Upfitter Accessory Feed
A/C Relay (Rear Heat and A/C)
Upfitter ACCY Relay
Starter Enable Relay
A/C Enable Relay
Fuel Pump Relay
Fuse/Circuit Breaker Usage
UPFITTER-BATT Upfitter Battery Power Stud. Trailer Wiring Harness
UPFITTER-ACCY Upfitter Accessory Relay
ECM-1B Fuel Pump Relay and Motor, VCM oil Pressure Switch/Sender
HORN Horn Relay and Horn
A/C COMP A/C Enable Relay and Compressor
ATC Active Transfer Case-L Van
ENG-I Oxygen Sensors, Camshaft Position Sensor, Mass Air Flow Sensor, Evaporative Emission Canister Purge Solenoid, Linear EGR Valve Solenoid, VCM EGR HI
IGN-E A/C Enable Relay Coil
ECM-I Fuel Injectors 1-6, Crankshaft Position Sensor, VCM, Coil Driver Module (EST)
LIGHTING Park Lamps Fuse, DRL Fuse, Headlamp and Panel Dimmer Switch
BATT Steering/Security Fuse, Courtesy Fuse, ACSY CB, Stop/Hazard Fuse, Auxiliary Power Fuse, Cigarette Lighter Fuse, Radio Battery Fuse
IGN A Starter Relay, Ignition Switch
IGN B Ignition Switch
ABS Electronic Brake Control Module
A/C Blower Motor Resistor, Blower Relay
RR HTR/AC Auxiliary Heater, A/C Relay
HTD MIR/RR DEFOG Rear Window Defogger
*A fuse puller is included in the underhood electrical center. You will also find spare fuses.

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.