2003 GMC SAFARI wiring

Relays Usage
A/C Relay
(Rear Heat
and A/C)Rear/Heat and Air Conditioning
Upfitter-ACCY
RelayUpfitter Accessory
Starter Enable
RelayStarter
A/C Enable
RelayAir Conditioning
Headlamps
RelayHeadlamps
Fuel Pump
RelayFuel Pump
Fuse/Circuit
BreakerUsage
UPFITTER-BATT Upfitter Battery Power Stud, Trailer
Wiring Harness
UPFITTER-ACCY Upfitter Accessory RelayFuse/Circuit
BreakerUsage
Spare Not used
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 Air Conditioning Enable Relay and
Compressor
RR HTR/AC Rear Heater and Air Conditioning
ATC Active Transfer Case-L Van
FRT HVAC Front Heater and Air Conditioning
ENG-I Oxygen Sensors, Camshaft Position
Sensor, Mass Air Flow Sensor,
Evaporative Emission Canister Vent
Solenoid
IGN-E Air Conditioning Enable Relay Coil
ECM-I Fuel Injectors 1–6, Crankshaft
Position Sensot, VCM, Coil Driver
Module (EST), Ignition Coil
5-90
2003 - Safari OM

E
Electrical System
Add-On Equipment......................................5-85
Fuses and Circuit Breakers...........................5-86
Headlamp Wiring.........................................5-85
Power Windows and Other Power Options......5-85
Windshield Wiper Fuses...............................5-85
Emissions Inspection and
Maintenance Programs.................................3-32
Engine
Air Cleaner/Filter.........................................5-21
Battery.......................................................5-42
Check and Service Engine Soon Light............3-30
Compartment Overview................................5-12
Coolant......................................................5-25
Coolant Heater............................................2-21
Coolant Temperature Gage...........................3-29
Cooling System Inspection............................6-32
Cover........................................................5-17
Exhaust.....................................................2-30
Fan Noise..................................................5-36
Oil .............................................................5-13
Overheating................................................5-28
Starting......................................................2-20
Engine Coolant Level Check.............................6-27
Engine Oil Additives........................................5-16
Engine Oil Level Check...................................6-27Entry Lighting.................................................3-15
Erasing HomeLink
®Buttons..............................2-37
Except Cargo Vans.................................1-38, 1-47
Exit Lighting...................................................3-15
Express-Down Window....................................2-17
Extender, Safety Belt.......................................1-34
Exterior Lamps...............................................3-12
F
Filter
Engine Air Cleaner......................................5-21
Finding a Station....................................3-38, 3-41
Finish Care....................................................5-80
Finish Damage...............................................5-82
Fixed Mast Antenna........................................3-49
Flash-to-Pass................................................... 3-7
Flat Tire........................................................5-64
Flat Tire, Changing.........................................5-65
Fluid
Automatic Transmission................................5-22
Power Steering...........................................5-36
Windshield Washer
......................................5-37
FM
...............................................................3-49
Following Distance
..........................................4-37
Front Axle
......................................................5-49
Front Doors
..................................................... 2-8
5
2003 - Safari OM

Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-6
Fuels in Foreign Countries.............................. 5-6
Gage .........................................................3-36
Gasoline Octane........................................... 5-4
Gasoline Specifications.................................. 5-5
Low Warning Light.......................................3-36
System Inspection.......................................6-32
Fuel Regulator................................................2-21
Fuses
Fuses and Circuit Breakers...........................5-86
Windshield Wiper.........................................5-85
G
Gage
Check Gages Warning Light..........................3-35
Engine Coolant Temperature.........................3-29
Fuel..........................................................3-36
Oil Pressure...............................................3-33
Speedometer..............................................3-25
Voltmeter Gage...........................................3-27
Garage Door Opener.......................................2-33Gasoline
Octane........................................................ 5-4
Specifications............................................... 5-5
Gate Operator and Canadian Programming........2-36
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hatch Release................................................2-15
Hazard Warning Flashers................................... 3-4
Head Restraints............................................... 1-5
Headlamp High/Low-Beam Changer.................... 3-7
Headlamp Wiring............................................5-85
Headlamps....................................................5-51
Bulb Replacement.......................................5-50
Front Turn Signal Lamps..............................5-54
Halogen Bulbs............................................5-50
Highway Hypnosis...........................................4-21
Hill and Mountain Roads..................................4-22
Hitches..........................................................4-35
HomeLink Transmitter, Programming..................2-34
HomeLink
®Transmitter....................................2-33
Hood
Checking Things Under.................................. 5-9
Release.....................................................5-10
6
2003 - Safari OM

T
Taillamps.......................................................5-54
Theft-Deterrent, Radio.....................................3-46
Theft-Deterrent Systems...................................2-18
Passlock
®...................................................2-18
Throttle System Inspection...............................6-33
Tilt Wheel........................................................ 3-5
Tire Inflation Check.........................................6-27
Tires.............................................................5-57
Buying New Tires........................................5-60
Chains.......................................................5-64
Changing a Flat Tire....................................5-65
Compact Spare Tire.....................................5-75
If a Tire Goes Flat.......................................5-64
Inflation -- Tire Pressure...............................5-58
Inspection and Rotation................................5-58
Uniform Tire Quality Grading.........................5-61
Wheel Alignment and Tire Balance.................5-63
Wheel Replacement.....................................5-63
When It Is Time for New Tires......................5-60
To Use the Engine Coolant Heater....................2-22
Top Strap
......................................................1-48Top Strap Anchor Location...............................1-50
Torque Lock...................................................2-29
Total Weight on Your Vehicle’s Tires..................4-35
Tow/Haul Mode Button.....................................2-25
Tow/Haul Mode Light.......................................3-35
Towing
Recreational Vehicle.....................................4-29
Towing a Trailer..........................................4-31
Your Vehicle...............................................4-28
Trailer Brakes.................................................4-36
Trailer Wiring Harness.....................................4-40
Trailering Package..........................................4-31
Transfer Case................................................5-48
Transmission
Fluid, Automatic...........................................5-22
Transmission Operation, Automatic....................2-23
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-10
Transportation Options...................................... 7-8
Trip Odometer................................................3-25
Turn and Lane Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-6
Turn Signals When Towing a Trailer..................4-38
14
2003 - Safari OM