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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
  • 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:
  • Stop Lamp Switch
  • Center High Mounted Stop Lamp
  • Stop Lamp- Right
  • Stop 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
  • Right Back-Up Lamp
  • Left Back-Up Lamp
  • 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:
  • Radio
  • TV Antenna 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:
  • Data Link Connector
  • Driver Door Module
  • Driver Side Outside Mirror
  • Passenger Outside Mirror
  • 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:
  • Instrument Panel Cluster
  • Data Link Connector
  • Main Relay
  • Ignition Switch
  • Service Engine Soon
  • 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 Turn Signal Light, Passenger Side.

    Source: Auto Body Parts Store

    $273.80

    Click here to view more details2004 Cadillac CTS Side Marker, Front, Driver Side, Bulbs included; DOT and SAE approved; A high quality, direct fit OE replacement side marker light assembly; With 2 years limited Trustbuilt warranty..

    Source: Auto Body Parts Store

    $27.28

    Click here to view more details2009 Cadillac CTS 18" X 8.5" Alloy Wheel, ALLOY WHEEL, 18 X 8.5, 5 STUDS/LUGS, 120MM BOLT DIA, 9 SPOKES, 48MM OFFSET, LIGHT PVD CHROME AFTERMARKET, LIGHT PVD CHROME, , .

    Source: Wheels / Rims, Mirrors & Lights Store

    $259.21

    Click here to view more details2003 Cadillac CTS V6, 3.2 L, 197 CID Rebuilt Engine, Warranty: 7-Year/70,000 Mile, .

    Source: Rebuilt Engines Store

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    Click here to view more details2012 Cadillac CTS Used Air Flow Meter/Sensor, 5.3, AUTO, 4X2, Very Good.

    Source: Used Auto Parts Store

    $77.00

    Click here to view more details2003 Cadillac CTS Used Wiper Motor Front, Very Good.

    Source: Used Auto Parts Store

    $86.00
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