ENGINE PERFORMANCE – Cadillac CTS V 2006 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.8L VIN T

2.8L VIN T, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2006

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2006:

• (center rear of intake manifold) intake manifold runner control solenoid
• (in engine harness, 20 cm from pcm) s140
• (in fuel injector harness, 15 cm from c121)
• (in oil filter housing) engine oil pressure (eop) sensor
• (in oil pan) engine oil level/temperature sensor
• +5v
• +5v ref
• Bare
• Baro sig
• Ckp sens lo
• Ckp sensor sig
• Cmp sig
• Cmp sol ctrl
• Crankshaft position sensor (right side of engine)
• Drain
• Ect sig
• Engine control module (front of right valve cover)
• Evap sol ctrl
• Fuel injectors
• G133 (right front of engine)
• Gen fdc sig
• Gen to sig
• Heated oxygen sensor bank 1 sensor 1 (in right exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (in right exhaust pipe, after catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (in left exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (in left exhaust pipe, after catalytic converter)
• Ho2s lo ctrl
• Ho2s lo sig
• Ho2s pmp ct
• Ho2s ref volt
• Ic 1 sig
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 sig
• Ic 5 ctrl
• Ic 6 ctrl
• Imrc sol ctrl
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Knock sensor (bank 1) (on right side of engine block)
• Knock sensor (bank 2) (left side of engine)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Nca
• Oil lev sig
• Oil pres sig
• Oil tmp sig
• Pnk
• S141 (in engine harness, 15 cm from pcm)
• Starting/ charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan a
• Tp sig 1
• Tp2 sig

2.8L VIN T, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2006

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2006:

• (in engine harness, 15 cm from coil 1)
• (in engine harness, 15 cm from coil 5)
• (in engine harness, 24.5 cm from ect sensor)
• (left rear of engine)
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Even inj/ coil fuse 20a
• Fuel pump motor relay
• G104 (on right body rail, near right headlamp)
• G130 (rear of right cylinder head)
• G131
• G401 (rear of right rear shock tower)
• Hot at all times
• Hot in acc or run
• Hot in run or start
• Ign 1 relay
• Ign mod/ maf fuse 15a
• Ignition coil 1 (top right of engine)
• Ignition coil 2 (top left of engine)
• Ignition coil 3 (top right of engine)
• Ignition coil 4 (top left of engine)
• Ignition coil 5 (top right of engine)
• Ignition coil 6 (top left of engine)
• Main relay
• Nca
• Odd inj/ coil fuse 20a
• Pnk
• Post fuse 15a
• Power distri- bution system
• Pre 02/ cam fuse 15a
• R25
• R36
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S142
• S143
• S144
• S145
• S146
• S149
• S150
• Spark plug
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Tos fuse 10a
• Under- hood fuse block (right front of engine compt)

2.8L VIN T, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2006

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2006:

• (front of left cylinder head) camshaft position actuator solenoid (exhaust bank 2)
• (front of left cylinder head) camshaft position actuator solenoid (intake bank 2)
• (front of left cylinder head) camshaft position sensor (exhaust bank 2)
• (front of left cylinder head) camshaft position sensor (intake bank 2)
• (front of right cylinder head) camshaft position actuator solenoid (exhaust bank 1)
• (front of right cylinder head) camshaft position actuator solenoid (intake bank 1)
• (front of right cylinder head) camshaft position sensor (exhaust bank 1)
• (front of right cylinder head) camshaft position sensor (intake bank 1)
• (in engine harness under throttle body, 11.5 cm towards right)
• +5v
• A/c refrigerant pressure sensor (near left front strut tower)
• Barometric pressure (baro) sensor (top rear of engine)
• Engine coolant temperature (ect) sensor (side of left cylinder head)
• Evaporative emissions (evap) canister purge solenoid valve (top right side of engine)
• Logic
• Low ref
• Mass air flow (maf) intake air temperature (iaf) sensor (left front of engine compt)
• Pnk
• S148
• Signal
• Tan
• Throttle body assembly

2.8L VIN T, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2006

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2006:

• (in engine harness, approxima- tely 24 cm from ebcm connector)
• (in fuel tank harness, 40 cm from c420)
• (in fuel tank) fuel pump & sender assembly
• (in fuel tank) fuel tank pressure (ftp) sensor
• +5v ref
• +5v ref a
• +5v ref c
• A/c ref pres
• Acc
• Acc volt
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Anti-lock brakes system
• App sens 2 sig
• App sens sig 1
• Automatic transmission manual shift shaft switch assembly
• Battery +
• Brk sw sig vehicle speed signal
• Cc sw sig
• Class 2 data
• Clu rly ctrl
• Computer data lines system air conditioning system
• Cooling fans system
• Crank volt
• Cruise control system
• Delv torque sig
• Eng spd sig
• Engine control module (front of right valve cover)
• Engine speed
• Evap sol ctrl
• Evaporative emissions (evap) canister vent solenoid valve (on vehicle underbody, above rear differential)
• Fan rly ctrl
• Fuel lev sens
• Fuel lev sig
• Fuel level sensor
• G132 (front of right cylinder head)
• G401 (rear of right rear shock tower)
• Gmlan bus
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Hot at all times
• Iat sig
• Ign 1 volt
• Ignition switch
• Instrument panel cluster (ipc)
• Lan bus +
• Lan bus -
• Lock
• Logic
• Low ref
• Maf sig
• Main rly ctrl
• Malfunction indicator lamp
• Mil ctrl
• P/n sig
• Pnk
• Req torq sig
• Rly coil ctrl
• Rly coil supp
• Rly ctrl
• Run
• S155
• S156
• S171
• S400
• Secondary fuel sender assembly
• Ser data bus
• Sound systems
• Splice pack sp102
• Start
• Starting/ charging system
• Tan
• Tank pres sig
• Tc data sig
• Transmission control module (at right front of engine compt)
• Vehicle speed sensor (on left rear of transmission)
• Vss

3.6L VIN 7

3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2006

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2006:

• (center rear of intake manifold) intake manifold runner control solenoid
• (in engine harness, 20 cm from pcm) s140
• (in fuel injector harness, 15 cm from c121)
• (in oil filter housing) engine oil pressure (eop) sensor
• (in oil pan) engine oil level/temperature sensor
• +5v
• +5v ref
• Bare
• Baro sig
• Ckp sens lo
• Ckp sensor sig
• Cmp sig
• Cmp sol ctrl
• Crankshaft position sensor (right side of engine)
• Drain
• Ect sig
• Engine control module (front of right valve cover)
• Evap sol ctrl
• Fuel injectors
• G133 (right front of engine)
• Gen fdc sig
• Gen to sig
• Heated oxygen sensor bank 1 sensor 1 (in right exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (in right exhaust pipe, after catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (in left exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (in left exhaust pipe, after catalytic converter)
• Ho2s lo ctrl
• Ho2s lo sig
• Ho2s pmp ct
• Ho2s ref volt
• Ic 1 sig
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 sig
• Ic 5 ctrl
• Ic 6 ctrl
• Imrc sol ctrl
• Inj 1 ctrl
• Inj 2 ctrl
• Inj 3 ctrl
• Inj 4 ctrl
• Inj 5 ctrl
• Inj 6 ctrl
• Knock sensor (bank 1) (on right side of engine block)
• Knock sensor (bank 2) (left side of engine)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Nca
• Oil lev sig
• Oil pres sig
• Oil tmp sig
• Pnk
• S141 (in engine harness, 15 cm from pcm)
• Starting/ charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Tan a
• Tp sig 1
• Tp2 sig

3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2006

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2006:

• (in engine harness, 15 cm from coil 1)
• (in engine harness, 15 cm from coil 5)
• (in engine harness, 24.5 cm from ect sensor)
• (left rear of engine)
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Even inj/ coil fuse 20a
• Fuel pump motor relay
• G104 (on right body rail, near right headlamp)
• G130 (rear of right cylinder head)
• G131
• G401 (rear of right rear shock tower)
• Hot at all times
• Hot in acc or run
• Hot in run or start
• Ign 1 relay
• Ign mod/ maf fuse 15a
• Ignition coil 1 (top right of engine)
• Ignition coil 2 (top left of engine)
• Ignition coil 3 (top right of engine)
• Ignition coil 4 (top left of engine)
• Ignition coil 5 (top right of engine)
• Ignition coil 6 (top left of engine)
• Main relay
• Nca
• Odd inj/ coil fuse 20a
• Pnk
• Post fuse 15a
• Power distri- bution system
• Pre 02/ cam fuse 15a
• R25
• R36
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S142
• S143
• S144
• S145
• S146
• S149
• S150
• Spark plug
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Tos fuse 10a
• Under- hood fuse block (right front of engine compt)

3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2006

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2006:

• (front of left cylinder head) camshaft position actuator solenoid (exhaust bank 2)
• (front of left cylinder head) camshaft position actuator solenoid (intake bank 2)
• (front of left cylinder head) camshaft position sensor (exhaust bank 2)
• (front of left cylinder head) camshaft position sensor (intake bank 2)
• (front of right cylinder head) camshaft position actuator solenoid (exhaust bank 1)
• (front of right cylinder head) camshaft position actuator solenoid (intake bank 1)
• (front of right cylinder head) camshaft position sensor (exhaust bank 1)
• (front of right cylinder head) camshaft position sensor (intake bank 1)
• (in engine harness under throttle body, 11.5 cm towards right)
• +5v
• A/c refrigerant pressure sensor (near left front strut tower)
• Barometric pressure (baro) sensor (top rear of engine)
• Engine coolant temperature (ect) sensor (side of left cylinder head)
• Evaporative emissions (evap) canister purge solenoid valve (top right side of engine)
• Logic
• Low ref
• Mass air flow (maf) intake air temperature (iaf) sensor (left front of engine compt)
• Pnk
• S148
• Signal
• Tan
• Throttle body assembly

3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2006

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2006:

• (in engine harness, approxima- tely 24 cm from ebcm connector)
• (in fuel tank harness, 40 cm from c420)
• (in fuel tank) fuel pump & sender assembly
• (in fuel tank) fuel tank pressure (ftp) sensor
• +5v ref
• +5v ref a
• +5v ref c
• A/c ref pres
• Acc
• Acc volt
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Anti-lock brakes system
• App sens 2 sig
• App sens sig 1
• Automatic transmission manual shift shaft switch assembly
• Battery +
• Brk sw sig vehicle speed signal
• Cc sw sig
• Class 2 data
• Clu rly ctrl
• Computer data lines system air conditioning system
• Cooling fans system
• Crank volt
• Cruise control system
• Delv torque sig
• Eng spd sig
• Engine control module (front of right valve cover)
• Engine speed
• Evap sol ctrl
• Evaporative emissions (evap) canister vent solenoid valve (on vehicle underbody, above rear differential)
• Fan rly ctrl
• Fuel lev sens
• Fuel lev sig
• Fuel level sensor
• G132 (front of right cylinder head)
• G401 (rear of right rear shock tower)
• Gmlan bus
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Hot at all times
• Iat sig
• Ign 1 volt
• Ignition switch
• Instrument panel cluster (ipc)
• Lan bus +
• Lan bus -
• Lock
• Logic
• Low ref
• Maf sig
• Main rly ctrl
• Malfunction indicator lamp
• Mil ctrl
• P/n sig
• Pnk
• Req torq sig
• Rly coil ctrl
• Rly coil supp
• Rly ctrl
• Run
• S155
• S156
• S171
• S400
• Secondary fuel sender assembly
• Ser data bus
• Sound systems
• Splice pack sp102
• Start
• Starting/ charging system
• Tan
• Tank pres sig
• Tc data sig
• Transmission control module (at right front of engine compt)
• Vehicle speed sensor (on left rear of transmission)
• Vss

6.0L VIN U

6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS V 2006

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS V 2006:

• (left front of engine compt) mass air flow (maf) sensor and intake air temperature (iat) sensors
• (left of water pump pulley) camshaft position (cmp) sensor
• (left side of engine) knock sensor 1
• (on throttle body) throttle actuator control motor
• (right side of engine) knock sensor 2
• (right side of throttle body) throttle position sensor
• 12 volt ref
• 5 volt ref
• 5 volt ref 1
• A tan
• B tan
• Ckp sensor sig
• Cmp sensor sig
• Crankshaft position (ckp) sensor
• D pnk
• Engine control module (ecm)
• Fuel injector 1 ctrl
• Fuel injector 2 ctrl
• Fuel injector 3 ctrl
• Fuel injector 4 ctrl
• Fuel injector 5 ctrl
• Fuel injector 6 ctrl
• Fuel injector 7 ctrl
• Fuel injector 8 ctrl
• G140 (rear of left cylinder head)
• Ground
• Ho2s heater low
• Ho2s high sig
• Ho2s low sig
• Iat sensor sig
• Ic 1 ctrl
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ign 1 voltage
• Ks 1 low ref
• Ks 1 sig
• Ks 2 low ref
• Ks 2 sig
• Low ref
• Maf sensor sig
• Oil pressure sensor sig
• Pnk
• Red
• S160
• Starter rly coil cont
• Starting/charging system
• Tac motor ctrl 1
• Tac motor ctrl 2
• Tan
• Tp sensor sig 1
• Tp sensor sig 2

6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS V 2006

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS V 2006:

• (in fuel tank harness, 40 cm from c420)
• (in ignition coil/ module harness, on left valve cover, 5 cm from c131)
• (in ignition coil/ module harness, on right valve cover, 5 cm from c132) s164
• (in ignition coil/module harness, on right valve cover, 5 cm from c132)
• (rear of right rear shock tower) g401
• (top left of engine)
• (top right of engine)
• (top right of engine) ignition coil/ module 2
• (top right of engine) ignition coil/ module 4
• (top right of engine) ignition coil/ module 6
• (top right of engine) ignition coil/ module 8
• (under vehicle in fuel tank)
• Acc
• Crank
• Engine oil pressure sensor (on top rear of engine)
• Fuel injectors
• Fuel level sensor
• Fuel pump & sender assembly (in fuel tank)
• Fuel tank pressure (ftp) sensor (in fuel tank)
• G141 (rear of left cylinder head)
• G142 (rear of right cylinder head)
• Gnd nca
• Hot at all times
• Ign
• Ign ctrl nca
• Ign nca
• Ignition coil/module 1 (top left of engine)
• Ignition coil/module 3 (top left of engine)
• Ignition coil/module 5 (top left of engine)
• Ignition coil/module 7 (top left of engine)
• Ignition switch
• Nca
• Nca gnd
• Nca ign
• Nca ign ctrl
• Nca ref lo
• Off/ lock
• Plug spark
• Pnk
• Pnk d
• Red
• Red c
• Ref lo nca
• Run
• S161
• S162
• S163
• S165
• S166
• S167
• S168
• S400
• Secondary fuel sender assembly
• Sp102
• Spark plug
• Tan
• Tan d

6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS V 2006

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS V 2006:

• 5 volt ref 1
• 5 volt ref 2
• 5 volt ref 3
• A/c comp clutch rly ctrl
• Acc volt
• Air conditioning system
• Anti-lock brakes system
• App sensor sig 1
• App sensor sig 2
• Bas relay coil sply volt
• Batt positive volt
• Canister vent fuse 10a
• Class 2 serial data
• Computer data lines system
• Cooling fans system
• Cpp sw sig
• Crank volt
• Cruise control sw sig
• Cruise control system
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Engine control module (ecm)
• Engine speed sig
• Evap canis vent sol ctrl
• Even inj/ coil fuse 20a
• Fuel pump motor rly
• Fuel pump mtr fuse 20a r37
• Fuel pump relay ctrl
• Fuel tank press tank sens
• G104 (on right body rail, near right headlamp)
• G401 (rear of right rear shock tower)
• Hi spd cool fan rly ctrl
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Ign 1 relay
• Ign 1 volt
• Ign mod/ maf fuse 15a
• Low ref
• Main relay
• Main relay control
• Mil control
• Odd inj/ coil fuse 20a
• Pnk
• Post fuse 15a
• Pre 02/ cam fuse 15a
• Primary fuel lev sens sig
• R25
• R36
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• Second fuel lev sens sig
• Starter rly coil ctrl
• Starting/ charging system
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Tos fuse 10a
• Under- hood fuse block (right front of engine compt)
• Vehicle speed sig

6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS V 2006

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS V 2006:

• (above accelerator pedal) accelerator pedal position (app) sensor
• (left rear of transmission) reverse lockout solenoid
• (left side of transmission) skip shift solenoid
• Engine coolant temperature (ect) sensor (front of the left cylinder head)
• Engine speed
• Evaporative emission canister purge solenoid valve (right of the throttle body)
• Heated oxygen sensor, bank 1 sensor 1 (on left exhaust pipe, before catalytic converter)
• Heated oxygen sensor, bank 1 sensor 2 (on left exhaust pipe, after catalytic converter)
• Heated oxygen sensor, bank 2 sensor 1 (on right exhaust pipe, before catalytic converter)
• Heated oxygen sensor, bank 2 sensor 2 (on right exhaust pipe, after catalytic converter)
• Ign
• Instrument panel cluster (ipc)
• Logic
• Malfu- nction indicator lamp
• Nca
• Oil temp
• S173
• Sound systems
• Tan
• Transmission fluid temperature (tft) sensor (in transmission)
• Vss

6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS V 2006

List of elements for 6.0L VIN U, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS V 2006:

• (on vehicle underbody, above rear differential) evaporative emission canister vent solenoid valve
• 5 volt ref 1
• 5 volt ref 2
• A/c refrigerant pressure sensor (near left front strut tower)
• A/c refrigerant sens sig
• Anti-lock brakes system
• Computer data lines system
• Cooling fans system
• Delivered torque sig
• Ect sensor sig
• Engine control module (ecm)
• Engine oil level/ temperature sensor
• Evap can purge sol ctrl
• G140 (rear of left cylinder head)
• G200 (behind left kick panel)
• Generator turn on sig
• Gntr field duty cycle sig
• Ground
• Hi spd gmlan serial data
• Ho2s heater low
• Ho2s high sig
• Ho2s low sig
• Low ref
• Low spd cool fan rly ctrl
• Manifold absolute pressure (map) sensor (next to throttle body)
• Map sensor sig
• Oil level sw sig
• Requested torque sig
• Reverse lockout sol ctrl
• S160
• Skip shipt sol ctrl
• Starter rly coil sply volt
• Starting/charging system
• Tan
• Tan a
• Tft sensor sig
• Vehicle speed sensor (on left rear of transmission)
• Vss high sig
• Vss low sig