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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:
  • Headlamp Switch
  • Headlamp Leveling Switch
  • Headlamp Leveling Actuator -Left
  • Headlamp Leveling Actuator -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
  • Left Turn Indicator
  • Driver Door Module
  • Park/Turn Signal Lamp -Left Front
  • Outside Rearview Mirror -Driver
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Park Lamp Relay
  • Body Control Module
  • Park/Turn Signal Lamp -Right Front
  • Park/Turn Signal Lamp -Left Front
  • 2003 GMC Envoy  4.2 L6 GAS Wiring Diagram2003 GMC Envoy 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Powertrain Control Module
  • Taillamp Assembly -Left
  • Taillamp Assembly -Right
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Headlamp Switch
  • Body Control Module
  • Headlamp Washer Pump
  • Headlamp Washer Relay
  • Headlamp Washer Switch
  • 2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram2003 GMC Envoy XL 4.2 L6 GAS Wiring Diagram

    Components on diagram:
  • Horn Relay
  • Body Control Module
  • Horn
  • Horn Assembly
  • Turn Signal/Multifunction Switch
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Body Control Module
  • Security Indicator
  • Hall Effect Sensor
  • Hood Ajar Switch
  • Powertrain Control Module
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Seat Lumbar Horizontal Motor -Driver
  • Seat Lumbar Vertical Motor -Driver
  • Passenger Seat
  • Lumbar Adjuster Switch -Driver
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Seat belt Indicator
  • Inflatable Restraint Sensing And Diagnostic Module
  • Seat Belt Switch -Driver
  • 2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram2003 GMC Envoy XL 5.3 V8 GAS Wiring Diagram

    Components on diagram:
  • Inflatable Restraint Sensing And Diagnostic Module
  • Inflatable Restraint Side Impact Sensor -Right
  • Inflatable Restraint Side Impact Sensor -Left
  • 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 details about 2004 GMC Envoy Tail Light, Driver Side2004 GMC Envoy Tail Light, Driver Side, Bulbs not included; DOT and SAE approved; A high quality, direct fit OE replacement tail light..

    Source: Auto Body Parts Store

    $54.31

    Click here to view more details about 2003 GMC Envoy Weatherstrip Seal, Front2003 GMC Envoy Weatherstrip Seal, Front, A high quality, direct fit OE replacement molded door seal..

    Source: Auto Body Parts Store

    $40.88

    Click here to view more details2009 GMC Envoy 16" x 7" Steel Wheel Take-Off, Steel Wheel; 16 X 7; 5 Vents; 6 Lug; 5 Inch BP; Ident 30603; Black, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $85.50

    Click here to view more details2005 GMC Envoy V8, 5.3 L, 322 CID Rebuilt Engine, 5.3 CHEVY,GMC, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    $1,866.00

    Click here to view more details2006 GMC Envoy Used Air Flow Meter/Sensor, 2.2, AUTO, FWD, Very Good.

    Source: Used Auto Parts Store

    $77.00

    Click here to view more details2008 GMC Envoy Used A/C Compressor, 4.2, AUTO, 4X4 4.2L, Very Good.

    Source: Used Auto Parts Store

    $132.00
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