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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 GMC Envoy car and truck repair procedures including GMC engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your 2003 GMC Envoy automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 GMC Envoy

  • 2003 GMC Envoy 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
  • 2003 GMC Envoy XL 4.2 L6 GAS, CID:256, Fuel Injection, Aspiration:256, Engine VIN:, Desg:S
  • 2003 GMC Envoy XL 5.3 V8 GAS, CID:323, Fuel Injection, Aspiration:323, Engine VIN:, Desg:P

WIRING DIAGRAMS FOR 2003 GMC Envoy AUTOMOBILES

OEM drawn wiring diagrams for most 2003 GMC Envoy cars and light trucks sold in the U.S.

2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

Components on diagram:
  • Battery
  • Starter Relay
  • Horn Relay
  • Headlamp Relay
  • Fog Lamp Relay
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Park Lamp Relay
  • Body Control Module
  • Turn Signal/Multifunction Switch
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • License Lamp -Left
  • License Lamp -Right
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Turn Signal/Hazard Flasher Module
  • Throttle Actuator Control Module
  • Stop Lamp Switch
  • Powertrain Control Module
  • Center High Mounted Stop Lamp
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Rear Window Defogger Grid
  • Liftgate Module
  • Heater/Vent/Air Conditioning Control Module
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Ambient Air Temperature Sensor
  • Inside Rearview Mirror
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Outside Rearview Mirror Switch
  • Front Passenger Door Module
  • Heater/Vent/Air Conditioning Control Module
  • Outside Rearview Mirror -Driver
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Heater/Vent/Air Conditioning Control Module -Auxiliary
  • Blower Motor Switch -Front Auxiliary
  • Blower Motor Control Processor -Auxiliary
  • Mode Actuator -Auxiliary
  • Air Temperature Actuator -Auxiliary
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Automatic Transmission Shift Lock Actuator
  • Ignition Lock Cylinder Control Actuator
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Stop Lamp Switch
  • Electronic Brake Control Module
  • Powertrain Control Module
  • Antilock Brake System Indicator
  • Antilock Brake System Pump
  • CLICK HERE TO GET FULL ACCESS TO 2003 GMC Envoy WIRING DIAGRAMS!

    Shop online for auto body parts, engines, wheels, lights...

    Click here to view more details2005 GMC Envoy Bumper Step Pad, Rear, A high quality, direct fit OE replacement bumper step pad; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $47.88

    Click here to view more details2006 GMC Envoy Mirror, Driver Side, This OE replacement mirror is textured black and made of the highest quality, rust and corrosion resistant materials to withstand all types of weather. Item is with 2 years limited TrustBuilt warranty.</p><p><b>Specifications:</b><ul><li>16-hole, 11-prong connector</li><li>With clear in-housing signal light and memory feature</li></ul></p>.

    Source: Auto Body Parts Store

    $107.60

    Click here to view more details about 2009 GMC Envoy 20" x 8" Alloy Wheel Take-Off2009 GMC Envoy 20" x 8" Alloy Wheel Take-Off, Alloy Wheel; 20 X 8; 46MM Offset; 6 Spokes; 6 Lug; 5 Inch BP; Polished, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $240.45

    Click here to view more details2008 GMC Envoy L6, 4.2 L, 258 CID Rebuilt Engine, Inline 6 cylinder DOHC 24 Valve, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $2,790.00

    Click here to view more details2006 GMC Envoy Used Air Injection Pump, 4.2, AUTO, 4X4 (4.2L), Very Good.

    Source: Used Auto Parts Store

    $115.00

    Click here to view more details2004 GMC Envoy Used Suspension Compressor/Pump, Air Compressor, 19177907, Very Good.

    Source: Used Auto Parts Store

    $477.00
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