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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Cadillac CTS car and truck repair procedures including Cadillac 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 Cadillac CTS automobile. Try the Automotix DIY solution today!
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WIRING DIAGRAMS FOR 2003 Cadillac CTS AUTOMOBILES

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

2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

Components on diagram:
  • Data Link Connector
  • Transmission Control Module
  • Engine Control Module
  • Torque Converter Clutch/ Cruise Release Switch
  • Transmission Manual Shift Switch Assembly
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Right Headlamp
  • Engine Control Module
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Headlamp- Left
  • Headlamp- Right
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Dash Integration Module
  • Overhead Console Courtesy Lamp
  • Sunroof Control Switch
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Dash Integration Module
  • Windshield Wiper/ Washer Module
  • Windshield Wiper/ Washer Switch
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Radio
  • Engine Control Module
  • Dash Integration Module
  • Steering Wheel Control/ Center
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Sunroof Module
  • Retained Accessory Power Relay
  • Dash Integration Module
  • Rear Integration Module
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Inside Rearview Mirror
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Driver Door Module
  • Front Passenger Door Module
  • Window Motor- Driver
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Door Lock Switch- Driver
  • CLICK HERE TO GET FULL ACCESS TO 2003 Cadillac CTS WIRING DIAGRAMS!

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

    Click here to view more details about 2007 Cadillac CTS Grille Assembly2007 Cadillac CTS Grille Assembly, With emblem provision; A high quality, OE replacement complete grille and shell assembly; Backed by 1-year, unlimited-mileage warranty..

    Source: Auto Body Parts Store

    $70.95

    Click here to view more details2008 Cadillac CTS Hood, With molding provision and windshield washer nozzle holes; A high quality, OE replacement hood; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $790.70

    Click here to view more details2007 Cadillac CTS Tail Light Assembly, Passenger Side, PASSENGER SIDE TAIL LIGHT ASSEMBLY, INCLUDES WIRING HARNESS, FOR MODELS BUILT AFTER 1/4/04, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $209.21

    Click here to view more details2010 Cadillac CTS V6, 3.6 L, 220 CID Rebuilt Engine, Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

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    Click here to view more details2005 Cadillac CTS Used Air Flow Meter/Sensor, 5.3, AUTO, AWD, Very Good.

    Source: Used Auto Parts Store

    $61.00

    Click here to view more details2005 Cadillac CTS Used Exhaust Manifold, 2.8L, L., Very Good.

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    $132.00
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