GMC Safari (1999) – fuse and relay box diagram
Year of production: 1999
This article focuses on the second-generation GMC Safari, produced from 1996 to 2005. It includes fuse box diagrams for the 1999 models, along with information on the locations of the fuse panels inside the vehicle and details about the function and layout of each fuse and relay.
Passenger Compartment Fuse Box
Fuse box location
The fuse block is on the lower portion of the instrument panel on the driver’s side.
Fuse box diagram
Assignment of the fuses in the passenger compartment
Fuse/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 Console |
15 | DRL Lamps |
16 | Front Turn Signals, Rear Turn Signals, Trailer Turn Signals, Back-up Lamps, BTSI Solenoid |
17 | Radio: ATC (Standby), 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 |
22 | Not Used |
23 | Rear Wiper, Rear Washer Pump |
24 | Not Used |
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 |
Engine Compartment Fuse Box
Fuse box location
The underhood fuse block is located toward the rear of the engine compartment on the driver’s side of the vehicle.
Fuse box diagram
Assignment of the fuses in the engine compartment
Feed | Usage |
AUX B | Upfitter Battery Feed |
AUX A | Upfitter Accessory Feed |
Relay |
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 |
Spare | Not used |
Fuse Puller* | — |
Spare | Not used |
Spare | Not used |
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 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.