Harness Routing Views. Cadillac CTS 2004

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2004 🢒 CTS 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 5L40-E 🢒 Harness Routing Views

Figure 1:

Splice Pack and Pass-Through Locations


(1)	SP102 (LA3/LY7/LY9)
(2)	Pass-Through Grommet from Engine Compartment to Passenger Compartment
(3)	Pass-Through Grommet from Passenger Compartment to Right Front Door
(4)	Pass-Through Grommet from Passenger Compartment to Right Rear Door
(5)	SP303
(6)	Pass-Through Grommet from Rear Compartment to Rght Rear Underbody
(7)	Pass-Through Grommet from Rear Compartment to Left Rear Underbody
(8)	Pass-Through Grommet from Passenger Compartment to Left Rear Door
(9)	SP300
(10)	Pass-Through Grommet from Passenger Compartment to Left Front Door
(11)	Pass-Through Grommet from Engine Compartment to Passenger Compartment
(12)	SP200

Figure 2:

Front End Lighting Harness Routing - LF of the Vehicle


(1)	Marker Lamp - LF Connector
(2)	Headlamp - Left Connector
(3)	C108

Figure 3:

Front End Lighting Harness Routing - RF of the Vehicle


(1)	C109
(2)	Headlamp - Right Connector
(3)	Marker Lamp - RF Connector

Figure 4:

Lower Left of the Engine Compartment


(1)	G101
(2)	C105 (V8)
(3)	C104 (V6) or C107 (V8)
(4)	Wiring Harness Pass-through Grommet

Figure 5:

Lower Right of the Engine Compartment


(1)	C103
(2)	S204
(3)	Underhood Fuse Block C4

Figure 6:

Battery and Fuse Blocks


(1)	Fuse Block - Underhood
(2)	Battery Positive Cable Connection to Fuse Block - Underhood
(3)	Ground G105 (LHD)
(4)	Battery Positive Cable (LHD)
(5)	Battery (LHD)
(6)	Battery Negative Cable (LHD)
(7)	C103 (LHD)
(8)	Fuse Block - Right Rear
(9)	Fuse Block - Left Rear
(10)	Battery (RHD)
(11)	Battery Negative Cable (RHD)
(12)	Ground G105 (RHD)
(13)	C103 (RHD)
(14)	Battery Positive Cable (RHD)

Figure 7:

Right Front Side of the Engine Compartment, C101, C102 (LS6)


(1)	Fuse Block - Underhood Connector C2
(2)	Fuse Block - Underhood Connector C3
(3)	Throttle Actuator Control (TAC) Module Connector C1
(4)	C101
(5)	C102
(6)	Throttle Actuator Control (TAC) Module
(7)	Throttle Actuator Control (TAC) Module Connector C2
(8)	Splice Pack SP102
(9)	Fuse Block - Underhood Connector C5
(10)	Fuse Block - Underhood Connector C1
(11)	Fuse Block - Underhood Connector C4

Figure 8:

Left Side of the Engine Compartment - 5.7L (LS6)


(1)	A/C Refrigerent Pressure Sensor
(2)	A/C Refrigerent Pressure Sensor Connector
(3)	C107
(4)	C105

Figure 9:

I/P Harness 1 of 2


(1)	Inflatable Restraint I/P Module Connectors
(2)	C201
(3)	C304
(4)	C203
(5)	G200
(6)	C200

Figure 10:

I/P Harness 2 of 2


(1)	C203
(2)	C202

Figure 11:

Passenger Compartment - Under Left Side of I/P


(1)	C200
(2)	C500 Pass-through Location Hole
(3)	C500
(4)	G200
(5)	C203

Figure 12:

Passenger Compartment - Under Right Side of I/P


(1)	Pass-through Grommet
(2)	C600 Pass-through Location Hole
(3)	C201
(4)	Inflatable Restraint I/P Module (Harness Side)
(5)	G201
(6)	C600

Figure 13:

Body Harness 1 of 2


(1)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(2)	Rear Integration Module (RIM) Connectors
(3)	Rear Defogger Connector
(4)	Digital Radio Receiver Connector (Domestic w/U2K/U2L) or TV Antenna Module Connector (Export w/U2Y/U2X)
(5)	Traffic Information Receiver Connector (Export w/U2X)
(6)	Inflatable Restraint Roof Rail Module - Driver Connector
(7)	C305
(8)	C308
(9)	C300
(10)	C301
(11)	C200
(12)	C303
(13)	C312
(14)	G201
(15)	C201
(16)	C306
(17)	C307
(18)	Shift Control Assembly Connector (M82)

Figure 14:

Body Harness 2 of 2


(1)	Fuse Block - Right Rear
(2)	Inflatable Restraint Roof Rail Module - Passenger Connector
(3)	C311
(4)	Fuse Block - Left Rear
(5)	C700
(6)	SP300
(7)	G307
(8)	C500
(9)	G200
(10)	G306
(11)	G201
(12)	C600
(13)	C800

Figure 15:

Headliner Harness


(1)	C309
(2)	C311
(3)	Radio Antenna COAX Connector
(4)	Dome Lamp Connector
(5)	Intrusion Sensor Connector (Export w/UA2)
(6)	Radio Antenna Module Connector
(7)	C305
(8)	C308
(9)	Sunshade - Driver (LHD ) or Sunshade - Passenger (RHD)
(10)	Speaker - Left A-Pillar Tweeter
(11)	Inside Rearview Mirror (ISRVM) Connector
(12)	Overhead Console Connector
(13)	Noise Compensation Microphone Connector
(14)	Speaker - Right A-Pillar Tweeter
(15)	Radio Antenna COAX Connector
(16)	Radio Antenna COAX Ground Connector (Early Production)
(17)	Sunroof Control Switch Connector
(18)	Sunshade - Passenger (LHD) or Sunshade - Driver (RHD)
(19)	Radio Antenna COAX Connector

Figure 16:

Passenger Compartment - Under Driver Seat


(1)	C312 (LHD Shown, RHD Similar)
(2)	C300 (LHD Shown, RHD Similar)
(3)	C301 (LHD Shown, RHD Similar)
(4)	C303 (LHD Shown, RHD Similar)

Figure 17:

Passenger Compartment - Between Left Doors


(1)	B - Pillar Left
(2)	SP300
(3)	G307
(4)	C301
(5)	C300

Figure 18:

Passenger Compartment - Under Center Console


(1)	Shift Control Assembly Connector
(2)	Body Harness Ground G306
(3)	Yaw Rate and Lateral Acceleration Sensor Connector
(4)	Yaw Rate and Lateral Acceleration Sensor
(5)	Inflatable Restraint Sensing and Diagnostic Module (SDM) Connector
(6)	Inflatable Restraint Sensing and Diagnostic Module (SDM)

Figure 19:

Passenger Compartment - Behind Front Seats


(1)	Splice Pack SP303
(2)	Fuse Block - Right Rear
(3)	Fuse Block - Left Rear
(4)	G306 (Hidden)
(5)	Inflatable Restraint Sensing and Diagnostic Module (SDM)

Figure 20:

Passenger Compartment - Between Right Doors


(1)	Right B - Pillar
(2)	C307
(3)	C306

Figure 21:

Door Components


(1)	Right Rear Door Module (RRDM) Connectors, LRDM Similar
(2)	C801
(3)	Door Latch Assembly - Right Rear Connector, Left Rear Similar
(4)	C800
(5)	Pass-through Grommet
(6)	Window Motor - Front Passenger Connector, Driver Similar
(7)	Door Latch Assembly - Front Passenger Connector, Driver Similar
(8)	C601
(9)	Front Passenger Door Module (FPDM) Connectors, DDM Similar (LHD Shown, RHD Similar)
(10)	Right Front Door Pass-through Grommet, Left Similar
(11)	C600

Figure 22:

Passenger Compartment - Left Sail Panel


(1)	G303
(2)	C308
(3)	Inflatable Restraint Roof Rail Module - Driver Connector
(4)	C305
(5)	Rear Defogger Connector C1

Figure 23:

Passenger Compartment - Right Sail Panel


(1)	Inflatable Restraint Roof Rail Module - Passenger Connector
(2)	Radio Antenna Coax Connector
(3)	C311
(4)	Cellular Antenna Coax Connector
(5)	Cellular Antenna
(6)	G303
(7)	Rear Window Defogger Connector C2
(8)	Rear Window Defogger Grid
(9)	Splice S309

Figure 24:

Body Harness Routing - Rear Package Shelf


(1)	Body Harness
(2)	C322
(3)	Navigation Antenna Coax Connector
(4)	Navigation Antenna
(5)	Speaker - Rear Subwoofer
(6)	Rear Integration Module (RIM) Connector C2
(7)	Rear Integration Module (RIM) Connector C1

Figure 25:

Rear Compartment - Below Rear Package Shelf


(1)	Speaker - Rear Subwoofer Connector
(2)	Rear Package Shelf
(3)	C310

Figure 26:

Body Harness Routing - Right Side of Rear Compartment


(1)	C310
(2)	C411
(3)	Navigation Antenna Coax (UE1)
(4)	Vehicle Communication Interface Module (VCIM) Connectors
(5)	G401
(6)	Inclination Sensor Connector (Export w/UA2)

Figure 27:

Rear of the Vehicle


(1)	C421
(2)	Rear Compartment Lid
(3)	Rear Compartment Lid Release Actuator Connector
(4)	Rear Compartment Lid Release Actuator
(5)	S400
(6)	Pass-through Grommet
(7)	G401
(8)	G402
(9)	Pass-through Grommet

Figure 28:

Rear of Vehicle - Underneath


(1)	C420 (LY9/LA3/LY7) or C422 (LS6)
(2)	Evaporative Emission (EVAP) Canister Vent Solenoid Valve Connector
(3)	Fuel Tank Pressure Sensor Connector
(4)	Fuel Pump and Sender Assembly Connector
(5)	Fuel Tank Pressure Sensor Connector
(6)	Fuel Pump and Sender Assembly Connector
(7)	Pass-Through Grommet
(8)	S400
(9)	G401 (Hidden Inside Rear Compartment)