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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
  • Ignition Switch
  • Ignition Relay
  • Rear 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
  • 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:
  • Ignition Switch
  • Ignition Relay
  • Blower Motor
  • Recirculation Actuator
  • Blower Motor Control Processor
  • 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:
  • 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:
  • Data Link Connector
  • Radio
  • Audio Amplifier
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Data Link Connector
  • Rear 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
  • Inflatable Restraint Sensing And Diagnostic Module
  • Seat Belt Switch- Left
  • 2003 Cadillac CTS  3.2 V6 GAS Wiring Diagram2003 Cadillac CTS 3.2 V6 GAS Wiring Diagram

    Components on diagram:
  • Inflatable Restraint Sensing And Diagnostic Module
  • Inflatable Restraint Front End Sensor
  • 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 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 details2005 Cadillac CTS Headlight, Driver 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

    $202.02

    Click here to view more details2009 Cadillac CTS Wheel Cover, Aftermarket Center Cap; 4 Piece Set, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $47.50

    Click here to view more details2005 Cadillac CTS V8, 5.7 L, 350 CID Rebuilt Engine, Warranty: 3-Year/100,000 Mile, .

    Source: Rebuilt Engines Store

    Ad Hoc

    Click here to view more details2011 Cadillac CTS Used Radio, recvr, AM-FM-NAV-CD-DVD-MP3 (opt UAV), Very Good.

    Source: Used Auto Parts Store

    $444.00

    Click here to view more details2004 Cadillac CTS Used Heater and A/C controls, main, (auxiliary heater, opt CJ2), heated seats (opt KA1), Very Good.

    Source: Used Auto Parts Store

    $128.00
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