ENGINE PERFORMANCE – Cadillac CTS V 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.8L VIN T

2.8L VIN T, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2005

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2005:

• (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 sensor
• (in oil pan) engine oil level/temperature sensor
• +5v
• +5v ref
• Baro sig
• Ckp hi
• Ckp sens lo
• 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 (on right exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (on right exhaust pipe, after catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (on left exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (on left exhaust pipe, after catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Ho2s pmp ct
• 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
• Tan
• Tan a
• Tp sig
• Tp2 sig

2.8L VIN T, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2005

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2005:

• (in engine harness 24.5 cm from ect sensor)
• (in engine harness, 15 cm from coil 1)
• (in engine harness, 15 cm from coil 5)
• (left rear of eng)
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Even inj/ coil fuse 15a
• 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 15a
• Pnk
• Pnk/
• Post fuse 15a
• Power distri- bution system
• Pre 02/ cam fuse 15a
• R36
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S142
• 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 2005

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2005:

• (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 sensor (top rear of engine)
• Engine coolant temperature sensor (side of left cylinder head)
• Evap canister purge solenoid (top right side of engine)
• Low ref
• Mass airflow sensor (left front of engine compt)
• Pnk
• S148
• Signal
• Tan
• Throttle body assembly (right front of engine compt)

2.8L VIN T, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2005

List of elements for 2.8L VIN T, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2005:

• (in engine harness, approxima- tely 24 cm from ebcm connector)
• (in fuel tank harness, 40 cm from c420)
• (in fuel tank) fuel tank pressure sensor
• +5v ref
• +5v ref a
• +5v ref c
• A/c ref pres
• Acc
• Acc volt
• Accelerator pedal
• Anti-lock brakes system
• App sens 2 sig
• App sens sig
• 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 canister vent solenoid (above rear differential)
• Evap sol ctrl
• Fan rly ctrl
• Fuel lev sens
• Fuel lev sig
• Fuel level sensor
• Fuel pump/ sender assembly
• 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
• Lan bus +
• Lan bus -
• Lock
• Logic
• Low ref
• Maf sig
• Main rly ctrl
• Malfunction indicator lamp
• Mil ctrl
• Off
• P/n sig
• Pnk
• Position sensor (above accelerator pedal)
• Req torq sig
• Rly coil ctrl
• Rly coil supp
• Rly ctrl
• Run
• S155
• S156
• S400
• Secondary fuel sender assembly
• Ser data bus
• Sound system
• 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 2005

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2005:

• (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 sensor
• (in oil pan) engine oil level/temperature sensor
• +5v
• +5v ref
• Baro sig
• Ckp hi
• Ckp sens lo
• 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 (on right exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 1 sensor 2 (on right exhaust pipe, after catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (on left exhaust pipe, before catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (on left exhaust pipe, after catalytic converter)
• Ho2s hi sig
• Ho2s lo ctrl
• Ho2s lo sig
• Ho2s pmp ct
• 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
• Tan
• Tan a
• Tp sig
• Tp2 sig

3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2005

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2005:

• (in engine harness 24.5 cm from ect sensor)
• (in engine harness, 15 cm from coil 1)
• (in engine harness, 15 cm from coil 5)
• (left rear of eng)
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Even inj/ coil fuse 15a
• 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 15a
• Pnk
• Pnk/
• Post fuse 15a
• Power distri- bution system
• Pre 02/ cam fuse 15a
• R36
• R38
• R40
• R43
• R44
• R45
• R46
• R47
• R48
• R49
• R50
• Right rear fuse block (below right rear seat)
• S142
• 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 2005

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2005:

• (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 sensor (top rear of engine)
• Engine coolant temperature sensor (side of left cylinder head)
• Evap canister purge solenoid (top right side of engine)
• Low ref
• Mass airflow sensor (left front of engine compt)
• Pnk
• S148
• Signal
• Tan
• Throttle body assembly (right front of engine compt)

3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2005

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2005:

• (in engine harness, approxima- tely 24 cm from ebcm connector)
• (in fuel tank harness, 40 cm from c420)
• (in fuel tank) fuel tank pressure sensor
• +5v ref
• +5v ref a
• +5v ref c
• A/c ref pres
• Acc
• Acc volt
• Accelerator pedal
• Anti-lock brakes system
• App sens 2 sig
• App sens sig
• 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 canister vent solenoid (above rear differential)
• Evap sol ctrl
• Fan rly ctrl
• Fuel lev sens
• Fuel lev sig
• Fuel level sensor
• Fuel pump/ sender assembly
• 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
• Lan bus +
• Lan bus -
• Lock
• Logic
• Low ref
• Maf sig
• Main rly ctrl
• Malfunction indicator lamp
• Mil ctrl
• Off
• P/n sig
• Pnk
• Position sensor (above accelerator pedal)
• Req torq sig
• Rly coil ctrl
• Rly coil supp
• Rly ctrl
• Run
• S155
• S156
• S400
• Secondary fuel sender assembly
• Ser data bus
• Sound system
• 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

5.7L VIN S

5.7L VIN S, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2005

List of elements for 5.7L VIN S, Engine Performance Wiring Diagram (1 of 4) for Cadillac CTS V 2005:

• (14 cm from ect sensor connector)
• (in engine harness, approximately 20 cm from underhood fuse block)
• (lower left front corner of vehicle, behind front bumper fascia) powertrain control module
• (rear of left cylinder head) g140
• (under intake manifold)
• +5v ref a
• +5v ref b
• 5v ref
• Acc voltage
• Anti-lock brakes system
• Ckp sen b+
• Ckp sen sig
• Cmp sen sig
• Computer data lines system
• Cooling fans system
• Cpp sw sig
• Ect sen sig
• Eng cool fan rly 1 ctrl
• Engine coolant temperature sensor (front of left cylinder head)
• Extended travel brake sw
• Fuel inj n04 ctrl
• Fuel inj n06
• Fuel inj n07 ctrl
• Fuel inj no1
• Fuel inj no2 ctrl
• Fuel inj no3 ctrl
• Fuel inj no5 ctrl
• Fuel inj no8 ctrl
• Fuel injectors
• G141 (rear of left cylinder head)
• G142 (rear of right cylinder head)
• Ground
• 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)
• Ho2s sig hi bank 1 sen1
• Ho2s sig hi bank1 sen1
• Ho2s sig hi bank2 sen1
• Ho2s sig hi bank2 sen2
• Ho2s sig lo bank1 sen1
• Ho2s sig lo bank1 sen2
• Ho2s sig lo bank2 sen1
• Ho2s sig lo bank2 sen2
• Knock sen sig 1
• Knock sen sig 2
• Knock sensor
• Low oil level sw sig
• Low ref
• Nca
• Pcm gnd
• Pnk
• Request torque sig
• Rly coil ctrl
• S160
• S161
• S162
• S169
• Serial data
• Skip shift sol ctrl
• Starting/ charging system
• Tan
• Tan a
• Uart serial data

5.7L VIN S, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2005

List of elements for 5.7L VIN S, Engine Performance Wiring Diagram (2 of 4) for Cadillac CTS V 2005:

• (in fuel tank harness, 40 cm from c420) s400
• (rear of right rear shock tower) g401
• Canister vent fuse 10a
• Ecm fuse 15a
• Ecm/tcm fuse 10a
• Evaporative emission canister purge solenoid valve (top left front of engine)
• Even inj/ coil fuse 15a
• Fuel level sensor
• Fuel pump motor fuse 20a r37
• Fuel pump relay
• Fuel pump/ sender assembly (in fuel tank)
• G104 (on right body rail, near right headlamp)
• G401 (rear of right rear shock tower)
• Hot at all times
• Hot in run or acc
• Hot in run or start
• Ign 1 relay
• Ign mod/ maf fuse 15a
• Main relay
• Manifold absolute pressure sensor
• Odd inj/ coil fuse 15a
• Pnk
• Post fuse 15a
• 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)
• Secondary fuel sender assembly (left side of fuel tank)
• Sp102
• Tan
• Tcm/ ipc fuse 15a
• Theft fuse 7.5a
• Tos fuse 10a
• Transmission fluid temperature sensor (in transmission)
• Under- hood fuse block (right front of engine compt)

5.7L VIN S, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2005

List of elements for 5.7L VIN S, Engine Performance Wiring Diagram (3 of 4) for Cadillac CTS V 2005:

• (above accelerator pedal) accelerator pedal position sensor
• (ign coil module, on left valve cover 5 cm from c131)
• (left rear of transmission) reverse lockout solenoid
• (left side of transmission) skip shift solenoid
• (on throttle body) throttle actuator control motor
• (rear of right cylinder head)
• (right front of engine compt) throttle actuator control module
• (right side of throttle body) throttle position sensor
• +5v ref
• 5v ref
• A/c refrigerant pressure sensor (near left front strut tower)
• Anti-lock brakes system
• App no1 sig
• App no2 sig
• App no3 sig
• Bas rly supp
• Camshaft position sensor
• Crankshaft position sensor
• Cruise control system
• Engine oil level/temper- ature sensor
• Engine oil pressure sensor
• G141 (rear of left cylinder head)
• G142
• G142 (rear of right cylinder head)
• Gnd
• Ign
• Ign 1
• 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)
• Low ref
• On/off sig
• Plug spark
• Pnk
• Red
• Red c ign ctrl
• Ref lo
• Res/acc sig
• S163
• S165
• S167
• Set/coast sig
• Spark plug
• Tac ctrl no1
• Tac ctrl no2
• Tan
• Tan a
• Tps no1 sig
• Tps no2 sig
• Uart ser data

5.7L VIN S, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2005

List of elements for 5.7L VIN S, Engine Performance Wiring Diagram (4 of 4) for Cadillac CTS V 2005:

• (in ignition coil/module harness, on right valve cover, 5 cm from c132)
• (left front of engine compt) mass air flow sensor
• (lower left front corner of vehicle, behind front bumper fascia) powertrain control module
• (on left rear of transmission)
• (on vehicle underbody, above rear differential) evaporative emission canister vent solenoid valve
• +12v ref
• A gnd
• A pnk
• A tan
• A/c clutch rly ctrl
• A/c refrig press sen sig
• Acc
• Air conditioning system
• Alt term l
• Anti-lock brakes system
• B ref lo
• Cooling fans system
• Crank voltage
• D ign
• D pnk
• Eng oil press sen sig
• Eng speed (tach) out sig
• Engine speed
• Evap can purge sol ctrl
• Evap can vent valve ctrl
• Fuel level sen sig
• Fuel levl sen sig (second)
• Fuel pump rly ctrl
• Fuel tank press sen sig
• Fuel tank pressure sensor (in fuel tank)
• G140 (rear of left cylinder head)
• G142 (rear of right cylinder head)
• Gen field duty sig
• Ground
• Hi spd fan rly ctrl
• Ho2s htr low ctrl
• Hot at all times
• Iat sen sig
• Ign ctrl 1
• Ign ctrl 2
• Ign ctrl 3
• Ign ctrl 4
• Ign ctrl 5
• Ign ctrl 6
• Ign ctrl 7
• Ign ctrl 8
• 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 (top right of engine)
• Ignition switch
• Instrument panel cluster
• Lock
• Logic
• Low ref
• Maf sen sig
• Main rly ctrl
• Malfunction indicator lamp
• Map sen sig
• Mil ctrl
• Off
• Oil temp
• Plug spark
• Pnk
• Pnk c ign ctrl
• Red
• Red c ign ctrl
• Reverse inhibit sol ctrl
• Run
• S160
• S164
• S166
• S168
• Skip shift ind
• Sound systems
• Spark plug
• Ss ind
• Ss lamp ctrl
• Start
• Starting/ charging system
• Tan
• Tft sen sig
• Torque delivered
• Vehicle speed out
• Vehicle speed sensor
• Vss
• Vss ref lo
• Vss sig hi