Cadillac CTS II (2007-2014) serial data Wiring diagrams

BLIND SPOT IND BLK WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER OUTSIDE REARVIEW MIRROR (AT MIRROR) DRIVER OUTSIDE REARVIEW MIRROR GLASS GROUND HOT AT ALL TIMES LEFT SIDE OBJECT SENSOR LO SPD GMLAN SERIAL DATA LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW SPD GMLAN DATA NCA WIRE PASSENGER DOOR LOCK/WINDOW SWITCH PASSENGER OUTSIDE REARVIEW MIRROR (AT MIRROR) PASSENGER OUTSIDE REARVIEW MIRROR GLASS PNK LED SIG WIRE PNK WIRE REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RED/WHT WIRE RIGHT SIDE OBJECT SENSOR SBZA FUSE SERIAL DATA WHT WIRE

9 1 10 IC 2 CTRL LOW REF LOW REF 9 10 1 IC 2 CTRL LOW REF LOW REF BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COUPE DK GRN WIRE DRIVER DOOR ACCENT LAMP DRIVER DOOR HANDLE ACCENT LAMP (SEDAN, WAGON) DRIVER DOOR LOCK/WINDOW SWITCH LEFT I/P ACCENT LAMP LEFT REAR DOOR ACCENT LAMP LEFT REAR DOOR HANDLE ACCENT LAMP LT BLU/BLK WIRE OVERHEAD CONSOLE ACCENT LAMP PASSENGER DOOR ACCENT LAMP PASSENGER DOOR HANDLE ACCENT LAMP (SEDAN, WAGON) PASSENGER DOOR/LOCK WINDOW SWITCH RED WIRE RIGHT I/P ACCENT LAMP RIGHT REAR DOOR ACCENT LAMP RIGHT REAR DOOR HANDLE ACCENT LAMP SEDAN WAGON SERIAL DATA TAN/WHT WIRE W/ DELUXE INTERIOR LAMP PACKAGE WHT WIRE WHT/BLK WIRE

11 12 1137 103 LIGHT SENSOR SIG HDLMPS ON 16 11 RLY CTRL RLY, IND CTRL AMBIENT LIGHT/ SUNLOAD SENSOR (TOP CENTER OF DASH) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE DRL RELAY DRL RT FUSE FOG FOG LAMP INDICATOR FRONT FOG LAMP RELAY FRT FOG FUSE GMLAN SERIAL DATA GRY WIRE HDLP RLY CTRL HEAD HI BEAM RELAY HIGH BEAM INDICATOR HOT AT ALL TIMES HVAC CONTROL MODULE (CENTER OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LEFT FRONT FOG LAMP LEFT FRONT STRUT TOWER) LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LO BEAM DRL FUSE LO BEAM RELAY LO REF LOGIC LT GRN/BLK WIRE LT HI BEAM FUSE LT LO RT LO BEAM BEAM FUSE FUSE OFF AUTO PARK ORG/ WIRE ORG/BLK WIRE PARK BRAKE SW SIG PARK BRAKE SWITCH (ON PARK BRAKE ASSEMBLY) PNK/WHT WIRE PPL PPL LO BEAM SPLY VOLT RIGHT FRONT FOG LAMP RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RT HI BEAM FUSE SERIAL DATA TAN/WHT WIRE TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WIPER/WASHER SYSTEM YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PNK WIRE 185 1358 897 419 WIPER/WASHER SYSTEM ABS IND. AIR BAG IGN FUSE ECM/TCM IGN FUSE AIR BAG IND BATT POS VOLT IGN 1 VOLT BLK WIRE BLK/WHT WIRE BOOST GAUGE (6.2L) BRAKE IND BRN WIRE BRN/WHT WIRE CHARGE IND COMPUTER DATA LINES SYSTEM COOLANT TEMPERATURE GAUGE (EXCEPT 6.2L) CRUISE IND DISPLY FUSE DK GRN WIRE DK GRN/WHT WIRE DRIVER DOOR LATCH ASSEMBLY (DRIVER'S DOOR) DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER INFORMATION CENTER (DIC) DISPLAY DRIVER INFORMATION CENTER (DIC) SWITCH ENGINE COOLANT TEMPERATURE IND FASTEN SAFETY BELT IND FRONT FOG LAMP IND FUEL LEVEL GAUGE GRY/BLK WIRE HIGH BEAM IND HOT AT ALL TIMES ILLUMINATION (4 BULBS) GROUND IND CTRL SW SIG LO REF IGN INSTRUMENT PANEL CLUSTER (IPC) LEFT REAR DOOR LATCH (LEFT REAR DOOR) LEFT TURN IND LF DOOR AJAR LOGIC LOW TIRE PRESSURE IND LT BLU/BLK WIRE MALFUNCTION IND NETWORK 1 OIL LEVEL IND PARK IND PERSONA- LIZATION PNK PNK WIRE PNK POWER DISTRIBUTION SYSTEM WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL PPL/WHT WIRE RED WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT TURN IND SECURITY IND SERIAL DATA SPEEDOMETER TACHOMETER TAN WIRE TAN/WHT WIRE TOW/HAUL IND TRACTION CONTROL OFF IND TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM COMPUTER DATA LINES SYSTEM TRIP ODOMETER TRIP/ FUEL UP DOWN UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) VEHICLE INFORMATION SET/ RESET VSC IND WHT WIRE YEL WIRE

BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DN LEFT DR/LCK FUSE DRIVER DOOR LOCK/ WINDOW SWITCH DRIVER MEMORY SEAT ADJUSTER SWITCH DRIVER OUTSIDE REARVIEW MIRROR EXIT SWITCH FOLDING FOLDING LOGIC GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT AT ALL TIMES REAR FUSE BLOCK PDM (RIGHT REAR FUSE OF LUGGAGE COMPT) HVAC CONTROL MODULE LOGIC LOGIC DRIVER DOOR LOCK/ WINDOW SWITCH LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MEMORY 1 SWITCH MEMORY 2 SWITCH MEMORY SEAT MODULE (MSM) (UNDER DRIVER'S SEAT) ORG/ WIRE ORG/BLK WIRE PASSENGER DOOR LOCK/ WINDOW SWITCH PASSENGER OUTSIDE REARVIEW MIRROR PPL RED/WHT WIRE RIGHT SEL LEFT SEL RIGHT SERIAL DATA W/ POWER FOLDING MIRROR WHT WIRE YEL WIRE

1 2 3 4 DRAIN WIRE COAX COAX COAX ANTI-LOCK BRAKES SYSTEM AUDIO SCREEN COMMON SIG AUDIO SIG AUDIO SIG DETECTION SIG AUDIO SIG + AUXILIARY AUDIO JACK BATT+ VOLT BLK TAN/ WIRE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (W/ COMMUNICATION, INFOTAINMENT) CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA CENTER HIGH MOUNTED ANTE- NNA STOP LAMP (CHMSL) COAX COAX (OR BLK) WIRE COMMON SIG COMPUTER DATA LINES SYSTEM CTRL SIG DATA BUS - DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN DRAIN WIRE GM LAN GROUND GRY WIRE HAZ SW SIG LO REF LOGIC LT BLU WIRE LT GRN WIRE MICROPHINE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL/DK GRN WIRE RADIO REAR WINDOW ANTENNA RADIO/HVAC CONTROL (W/ INFOTAINMENT SYSTEM 1, 2, 3 RED WIRE RED/BLK WIRE RED/WHT WIRE SEDAN SERIAL DATA SERIAL DATA HI SERIAL DATA LO SIG SIG ENABLE REMOTE TAN WIRE TRAC SW SIG W/ INFOTAINMENT SYSTEM 1, 2, 3, 5.1 W/ INFOTAINMENT SYSTEM 7, 8 W/ INFOTAINMENT SYSTEM 8, 5.1 WAGON WAKE UP SIG WHT WIRE WIRELESS COMMUNICATION INTERFACE ANTENNA BLUETOOTH YEL WIRE

1 2 3 4 DRAIN WIRE COAX COAX COAX ANTI-LOCK BRAKES SYSTEM AUDIO SCREEN COMMON SIG AUDIO SIG AUDIO SIG DETECTION SIG AUDIO SIG + AUXILIARY AUDIO JACK BATT+ VOLT BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (W/ CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA CENTER HIGH MOUNTED ANTE- NNA STOP LAMP (CHMSL) COAX COAX (OR BLK) WIRE COMMON COMMUNICATION, INFOTAINMENT) COMPUTER DATA LINES SYSTEM CTRL SIG DATA BUS - DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN DRAIN WIRE GM LAN GRN WIRE GROUND GRY WIRE HAZ SW SIG LO REF LOGIC LT BLU WIRE LT GRN WIRE NAVIGATION, TRAFFIC DATA ANTENNA (W/ INFOTAINMENT SYSTEM 7) NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL/DK GRN WIRE RADIO REAR WINDOW ANTENNA RADIO/HVAC CONTROL (W/ INFOTAINMENT SYSTEM 1, 2, 3 RED WIRE RED/WHT WIRE REMOTE ENABLE SIG SEDAN SERIAL DATA SERIAL DATA HI SERIAL DATA LO SIG TAN WIRE TAN/ BLK WIRE TRAC SW SIG USB W/ INFOTAINMENT SYSTEM 1, 2, 3, 5.1 W/ INFOTAINMENT SYSTEM 7, 8 W/ INFOTAINMENT SYSTEM 8, 5.1 WAGON WAKE UP SIG WHT WIRE WIRELESS COMMUNICATION INTERFACE ANTENNA BLUETOOTH YEL WIRE

15 18 24 HOOD AJAR SW HORN RLY CTRL PARK LP SPLY 16 15 14 12 LR DOOR OPEN SW LR DOOR AJAR SW RR DOOR AJAR SW LIFTGATE AJAR SW 18 19 PPL 5714 5709 5713 ANTENNA LOW ANTENNA SIG ANTENNA LOW PNK WIRE 8 9 DATA BUS (+) DATA BUS (-) 80 3440 DISTRIBUTION SYSTEM 9 7 DRV DOOR UNLCK DRV DOOR UNLCK ANTENNA SIG BLK WIRE BLK/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COUPE DISPLY FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER DOOR HANDLE SWITCH (SEDAN/WAGON) FUEL DOOR RELEASE ACTUATOR (W/ REMOTE CONTROL) (RIGHT REAR OF LUGGAGE COMPT) GRY WIRE HEADLINER KEYLESS ENTRY ANTENNA (WAGON) (CENTER REAR OF ROOF) HOOD AJAR SWITCH (W/ REMOTE START) HORNS SYSTEM EXTERIOR LIGHTS SYSTEM HOT AT ALL TIMES IGNITION SW SIG B+ LEFT KEYLESS ENTRY ANTENNA LEFT REAR DOOR HANDLE SWITCH (SEDAN/WAGON) LEFT REAR DOOR LATCH (SEDAN/WAGON) (LEFT REAR DOOR) LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PASS SW SIG RELEASE CTRL DRV SW SIG GND (OR 5797) 5882 1051 WIRE PNK WIRE PNK/BLK WIRE POWER POWER DISTRIBUTION SYSTEM PPL PPL HOOD SW SIG PPL/WHT WIRE REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR COMPARTMENT LID LATCH REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) RED/WHT WIRE RIGHT REAR DOOR HANDLE SWITCH (SEDAN/WAGON) RIGHT REAR DOOR LATCH (SEDAN/WAGON) (RIGHT REAR DOOR) RKE/PASS KEY/MDL FUSE RR DR HANDLE SW LR DR HANDLE SW SHIFT POS SIG SEDAN SEDAN, WAGON, COUPE SEDAN/WAGON SERIAL DATA SHIFT INTERLOCK SYSTEM TAN WIRE TAN/BLK WIRE TRUNK, TAILGATE, FUEL DOORS SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT OF ENGINE COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BATT WINDOW POSITIVE INDEX- VOLT ING BLK WIRE BLUNT CUT- DRIVER DOOR (NOT USED) BLUNT CUT- PASSENGER DOOR (NOT USED) BODY CONTROL MODULE (BCM) (CENTER OF DASH, BRN WIRE COMPUTER DATA LINES SYSTEM COUPE, SEDAN, WAGON DK BLU WIRE DK GRN WIRE DRIVER DOOR LOCK/WINDOW SWITCH DRIVER WINDOW MOTOR (DRIVER'S DOOR) GND GND BATT POSITIVE VOLT GRY WIRE HOT AT ALL TIMES LEFT FRONT WINDOW SWITCH UP LEFT REAR WINDOW MOTOR (LEFT REAR DOOR) LEFT REAR WINDOW SWITCH (SEDAN/WAGON) LEFT REAR WINDOW SWITCH UP LKOUT CTRL LKOUT RR SIG LKOUT SIG LOCAL INTERCONNECT NETWORK 1 LOCAL WINDOW INTERCONNECT INDEXING NETWORK 2 LOGIC LOGIC RIGHT REAR WINDOW SWITCH (SEDAN/WAGON) LR DN CTRL LR DN SW LR UP CTRL LR UP SIG LT BLU/WHT WIRE LT GRN WIRE LT/REAR/ WNDW CIRCUIT BREAKER ORG/ WIRE PASSENGER DOOR LOCK/ WINDOW SWITCH PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) PPL PPL LR DN SIG PPL RR DN SIG PWR/WNDW CIRCUIT BREAKER REAR FUSE BLOCK (RIGHT REAR OF LUGGAGE COMPT) REAR/ WNDW CIRCUIT BREAKER RED WIRE RED/WHT WIRE RIGHT FRONT WINDOW SWITCH UP RIGHT REAR WINDOW MOTOR (RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH LOGIC RR DN CTRL RR DN SIG RR UP CTRL RR UP SIG SERIAL DATA WHT WIRE

1 2 3 4 DRAIN WIRE COAX COAX COAX ANTI-LOCK BRAKES SYSTEM AUDIO SCREEN COMMON SIG AUDIO SIG AUDIO SIG DETECTION SIG AUDIO SIG + AUXILIARY AUDIO JACK BATT+ VOLT BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CELLULAR TELEPHONE MICROPHONE (W/ CELLULAR/ NAVIGATION, DIGITAL RADIO ANTENNA CENTER HIGH MOUNTED ANTE- NNA STOP LAMP (CHMSL) COAX COAX (OR BLK) WIRE COMMON COMMUNICATION, INFOTAINMENT) COMPUTER DATA LINES SYSTEM CTRL SIG DATA BUS - DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN DRAIN WIRE GM LAN GRN WIRE GROUND GRY WIRE HAZ SW SIG LO REF LOGIC LT BLU WIRE LT GRN WIRE NAVIGATION, TRAFFIC DATA ANTENNA (W/ INFOTAINMENT SYSTEM 7) NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK WIRE PNK/BLK WIRE PPL/DK GRN WIRE RADIO REAR WINDOW ANTENNA RADIO/HVAC CONTROL (W/ INFOTAINMENT SYSTEM 1, 2, 3 RED WIRE RED/WHT WIRE REMOTE ENABLE SIG SEDAN SERIAL DATA SERIAL DATA HI SERIAL DATA LO SIG TAN WIRE TAN/ BLK WIRE TRAC SW SIG USB W/ INFOTAINMENT SYSTEM 1, 2, 3, 5.1 W/ INFOTAINMENT SYSTEM 7, 8 W/ INFOTAINMENT SYSTEM 8, 5.1 WAGON WAKE UP SIG WHT WIRE WIRELESS COMMUNICATION INTERFACE ANTENNA BLUETOOTH YEL WIRE