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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
  • Engine Control Module
  • Compressor Clutch Relay
  • Air Conditioning Compressor Clutch
  • Air Conditioning Refrigerant Pressure Sensor
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Dash Integration Module
  • Automatic Transmission Shift Lock Actuator
  • Ignition Lock Cylinder Control Actuator
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Cigar Lighter
  • Cigar Lighter Relay
  • Dash Integration Module
  • 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:
  • Fog Lamp Relay
  • Dash Integration 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:
  • Rear Integration Module
  • Footwell Courtesy Lamp- Right
  • Footwell Courtesy Lamp- Left
  • 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:
  • Horn Assembly
  • Dash Integration Module
  • Horn Pad
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Driver Door Module
  • Driver Side Outside Mirror
  • Passenger Outside Mirror
  • 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 details2005 Cadillac CTS Headlight, Passenger Side, Bulbs included; Without washer and leveling system; Composite and halogen type; DOT and SAE approved; A high quality, direct fit OE replacement headlight assembly; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $278.37

    Click here to view more details2007 Cadillac CTS Tail Light, Passenger Side.

    Source: Auto Body Parts Store

    $267.43

    Click here to view more details about 2008 Cadillac CTS Door Handle Cover ABS2008 Cadillac CTS Door Handle Cover ABS, Door Handle Covers; 4 Door; Without Passenger Side Keyhole, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $21.45

    Click here to view more details2010 Cadillac CTS V6, 3.0 L, 181 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

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    Click here to view more details2010 Cadillac CTS Used Bumper Cover, Front, PNTD CVR ONLY, 25793663-S, Very Good.

    Source: Used Auto Parts Store

    $363.00

    Click here to view more details2008 Cadillac CTS Used Brake Master Cylinder, 3.6, AUTO, RWD, Very Good.

    Source: Used Auto Parts Store

    $125.00
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