ENGINE PERFORMANCE – Cadillac CTS 2009 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.6L VIN 7

3.6L VIN 7, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2009:

• (engine harness, near branch for brake booster pump relay) (m/t) j182
• (engine harness, near branch for underhood fuse block)
• (engine harness, near branch for underhood fuse block) j185
• (front of right valve cover)
• (fuel tank harness, near inline con- nector x420) j400
• (on clutch pedal bracket) (m/t) clutch pedal position (cpp) sensor
• (right side of transmission) back up lamp switch
• (top right of engine) g132
• 5v ref 2
• 5v ref 3
• A/c refrigerant pressure sensor (on a/c refrigerant line)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• Batt+ volt
• Clutch rly ctrl
• Cnstr/ vent fuse 10a
• Computer data lines system
• Cooling fans system
• Ecm fuse 15a
• Ecm/ tcm ign fuse 15a
• Engine control module (ecm)
• Evaporative emission (evap) canister vent solenoid valve
• Exterior lights system
• Fan rly ctrl
• Fuel level sens
• Fuel level sensor
• Fuel pump & sender assembly (in fuel tank)
• Fuel tank pressure sensor (in fuel tank)
• G132 (top right of engine)
• G401 (right rear shock tower)
• Gnd
• Heated oxygen sensor bank 1 sensor 2 (left exhaust pipe, after catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (right exhaust pipe, after catalytic converter)
• Hi volt ctrl cyl 3
• Ho2s hi sig
• Ho2s htr lo ctrl
• Ho2s lo sig
• Hot at all times
• Hot w/ ign main 1 relay energized
• Ign 1 volt
• J181 (m/t)
• J187
• Lamp sw sig
• Lo ref
• Maf sens sig
• Main rly ctrl
• Mil ctrl
• Nca
• Pnk
• Press sens sig
• Rear fuse block (right rear of luggage compt)
• Red
• Rly ctrl
• Sens lo ref
• Sens sig
• Sens sig position
• Sens volt ref 1
• Serial data bus+
• Serial data bus-
• Starting/ charging system
• Str rly coil ctrl
• Sw sig/sply volt
• Tan
• Temp sens sig
• Underhood fuse block (right front of engine compt)
• Vent sol ctrl
• Vss hi sig
• Wakeup serial data

3.6L VIN 7, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2009:

• Acc
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Body control module (bcm)
• Camshaft position (cmp) sensor (exhaust bank 1) (front of right cylinder head)
• Camshaft position (cmp) sensor (exhaust bank 2) (front of left cylinder head)
• Camshaft position (cmp) sensor (intake bank 1) (front of right cylinder head)
• Camshaft position (cmp) sensor (intake bank 2) (front of left cylinder head)
• Computer data lines system
• Ecm fuse 10a
• Emis 1 fuse 15a
• Emis 2 fuse 15a
• Even coils fuse 15a
• Fuel pump fuse 20a
• Fuel pump relay
• G132 (top right of engine)
• G401 (right rear shock tower)
• Gmlan data
• Hot at all times
• Ignition switch
• J183
• J260 (w/o remote start)
• Mass air flow sensor (maf) & intake air temperature (iat) sensors (left front of engine compt)
• Odd coils fuse 15a
• Off
• Pnk
• Pwr/ trn relay
• Rear fuse block (right rear of luggage compt)
• Run
• Start
• Tan
• Underhood fuse block (right front of engine compt)
• Vehicle speed sensor (right rear of transmission)

3.6L VIN 7, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2009:

• (center rear of intake manifold) intake manifold tuning (imt) solenoid valve
• (front of left cylinder head) camshaft position (cmp) actuator solenoid (exhaust bank 2)
• (front of right cylinder head) camshaft position (cmp) actuator solenoid (exhaust bank 1)
• (front of right cylinder head) camshaft position (cmp) actuator solenoid (intake bank 1)
• (top right side of engine) evaporative emission (evap) canister purge solenoid valve
• Camshaft position (cmp) actuator solenoid (intake bank 2) (front of left cylinder head)
• Computer data lines system
• Crankshaft position (ckp) sensor (right side of engine)
• Driver information center (dic)
• Engine oil pressure (eop) sensor (in oil filter housing)
• G132 (top right of engine)
• Gmlan lo spd
• Gnd d
• Heated oxygen sensor bank 1 sensor 1 (left exhaust pipe, before catalytic converter)
• Imtv ctrl
• Instrument panel cluster (ipc)
• J142
• Lo spd gmlan
• Logic
• Low engine oil pressure ind
• Malfunction ind lamp (mil)
• Position sig
• Rly fused sply

3.6L VIN 7, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2009:

• (front center of engine) throttle body
• (ignition coil/ module harness, near inline connector x132)
• (top of right cylinder bank) ignition coil 2
• (top of right cylinder bank) ignition coil 4
• (top of right cylinder bank) ignition coil 6
• Ect sens sig
• Engine control module (ecm) (front right valve cover)
• Engine coolant temperature (ect) sensor (side of left cylinder head)
• G131 (left rear of engine)
• Heated oxygen sensor bank 2 sensor 1 (right exhaust pipe, before catalytic converter)
• Ho2s htr lo ctrl
• Ho2s lo ctrl
• Ho2s lo ref
• Ho2s ref
• Ho2s ref volt
• Htr lo ctrl
• Ic 2 ctrl
• Ic 4 ctrl
• Ic 6 ctrl
• Imt position sig
• Knock sens 2 sig
• Knock sens sig
• Lo ref
• Nca
• Oil press sens
• Spark plug
• Tp sens 1 sig
• Tp sens 2 sig

3.6L VIN 7, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN 7, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2009:

• (fuel injector harness, near inline connector x121) j151
• (ignition coil/module harness, near inline connector x131) j165
• (on right side of engine block) knock sensor (ks) 1
• (top of left cylinder bank) fuel injectors 1, 3 & 5
• 5v ref 1
• 5v ref 2
• 5v ref 3
• Ckp sens sig
• Engine control module (ecm) (front right valve cover)
• Exhaust sens
• Exhaust sens (2)
• Exhaust sol (1)
• Exhaust sol (2)
• Fuel injectors 2, 4 & 6 (top of right cylinder bank)
• G130 (rear of right cylinder head)
• Gen duty cycle sig
• Gen turn on sug
• Hi volt ctrl cyl 1
• Hi volt ctrl cyl 2
• Hi volt ctrl cyl 3
• Hi volt ctrl cyl 4
• Hi volt ctrl cyl 5
• Hi volt ctrl cyl 6
• Ic 1 ctrl
• Ic 3 ctrl
• Ic 5 ctrl
• Ignition coil 1 (top of left cylinder bank)
• Ignition coil 3 (top of left cylinder bank)
• Ignition coil 5 (top of left cylinder bank)
• Imtv ctrl sig
• Intake sens (1)
• Intake sens (2)
• Intake sol
• Intake sol (1)
• J145
• Knock sens sig
• Knock sensor (ks) 2 (side of left cylinder bank)
• Lo ref
• Nca
• Plug spark
• Purge sol ctrl
• Red
• Spark plug
• Starting/ charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• X121) j152

3.6L VIN V

3.6L VIN V, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (1 of 5) for Cadillac CTS 2009:

• (at right rear shock tower) g401
• (engine harness, near branch for underhood fuse block) j185
• (in fuel tank harness, near inline con- nector x420) j400
• (top right of engine) g132
• 5v ref 2
• 5v ref 3
• A/c refrigerant pressure sensor (on a/c refrigerant line)
• A/t internal mode switch
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• Automatic transmission
• Batt+ volt
• Clutch rly ctrl
• Cnstr/ vent fuse 10a
• Computer data lines system
• Control solenoid valve assembly
• Cooling fans system
• Ctrl actr sig
• Ecm fuse 15a
• Ecm/ tcm ign fuse 15a
• Engine control module (ecm) (front of right valve cover)
• Evaporative emission (evap) canister vent solenoid valve
• Exterior lights system
• Fan rly ctrl
• Fuel level sens
• Fuel level sensor
• Fuel pump & sender assembly (in fuel tank)
• Fuel tank pressure (ftp) sensor (in fuel tank)
• Gnd
• H2os hi sig
• Heated oxygen sensor bank 1 sensor 2 (on left exhaust pipe, after catalytic converter)
• Heated oxygen sensor bank 2 sensor 2 (right exhaust pipe, after catalytic converter)
• Ho2s htr lo ctrl
• Ho2s lo sig
• Hot at all times
• Hot w/ ign 1 relay energized
• Ign 1 volt
• J187
• Lo ref
• Maf sens sig
• Main rly ctrl
• Mil ctrl
• Pnk
• Press sens sig
• Rear fuse block (right rear of luggage compt)
• Red
• Rly ctrl
• Sens lo ref
• Sens sig
• Sens volt ref 1
• Serial data bus+
• Serial data bus-
• Starting/ charging system
• Str rly coil ctrl
• Sw sig/sply volt
• Tan
• Temp sens sig
• Transmissions system
• Underhood fuse block (right front of engine compt)
• Vent sol ctrl
• Wakeup serial data

3.6L VIN V, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (2 of 5) for Cadillac CTS 2009:

• 15a
• Acc
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Body control module (bcm)
• Brk vac pump fuse 20a
• Camshaft position (cmp) sensor (exhaust bank 1) (front of right cylinder head)
• Camshaft position (cmp) sensor (exhaust bank 2) (front of left cylinder head)
• Camshaft position (cmp) sensor (intake bank 1) (front of right cylinder head)
• Camshaft position (cmp) sensor (intake bank 2) (front of left cylinder head)
• Computer data lines system
• Ecm fuse 10a
• Emis 1 fuse 15a
• Emis 2 fuse 15a
• Even coils fuse
• Fuel pump fuse 20a
• Fuel pump relay
• G132 (top right of engine)
• G401 (right rear shock tower)
• Gmlan data gmlan data x3
• Hot at all times
• Ignition switch
• J183
• J260 (w/o remote start)
• Mass air flow sensor (maf) & intake air temperature (iat) sensors (left front of engine compt)
• Odd coils fuse
• Off
• Pnk
• Pwr/ trn relay
• Rear fuse block (right rear of luggage compt)
• Run
• Start
• Tan
• Underhood fuse block (right front of engine compt)

3.6L VIN V, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (3 of 5) for Cadillac CTS 2009:

• (front of left cylinder head) camshaft position (cmp) actuator solenoid valve (exhaust bank 2)
• (front of right cylinder head) camshaft position (cmp) actuator solenoid valve (exhaust bank 1)
• (front of right cylinder head) camshaft position (cmp) actuator solenoid valve (intake bank 1)
• (top right side of engine) evaporative emission (evap) canister purge solenoid valve
• Auxiliary brake booster pump
• Brake booster pump relay
• Camshaft position (cmp) actuator solenoid valve (intake bank 2) (front of left cylinder head)
• Computer data lines system
• Crankshaft position (ckp) sensor (right side of engine)
• Driver information center (dic)
• Engine oil pressure (eop) sensor (in oil filter housing)
• Fuel rail pressure (frp) sensor
• G132 (top right of engine)
• Gmlan lo spd
• Heated oxygen sensor bank 1 sensor 1 (left exhaust pipe, before catalytic converter)
• Instrument panel cluster (ipc)
• J142
• J184
• Logic
• Low engine oil pressure ind
• Malfunction ind lamp (mil)
• Nca

3.6L VIN V, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (4 of 5) for Cadillac CTS 2009:

• (front center of engine) throttle body
• (top of right cylinder bank) ignition coil 2
• (top of right cylinder bank) ignition coil 4
• (top of right cylinder bank) ignition coil 6
• Actr lo ctrl
• Ect sens sig
• Engine control module (ecm) (front of right valve cover)
• Engine coolant temperature (ect) sensor (side of left cylinder head)
• G131 (left rear of engine)
• Heated oxygen sensor bank 2 sensor 1 (right exhaust pipe, before catalytic converter)
• Hi volt sply cyl 1
• Hi volt sply cyl 4
• Ho2s htr lo ctrl
• Ho2s lo ref
• Ho2s ref volt
• Htr lo ctrl
• Ic 2 ctrl
• Ic 4 ctrl
• Ic 6 ctrl
• Ign 1 volt
• J162
• Knock sens 2 sig
• Knock sens sig
• Lo ref
• Nca
• Oil press sens
• Plug spark
• Spark plug
• Tp sens 1 sig
• Tp sens 2 sig

3.6L VIN V, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2009

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (5 of 5) for Cadillac CTS 2009:

• (rear of right cylinder head) g130
• (right side of engine block) knock sensor (ks) 1
• (top of left cylinder bank) fuel injector 3
• (top of left cylinder bank) fuel injector 5
• (top of right cylinder bank)
• (top of right cylinder bank) fuel injector 6
• 5v ref 1
• 5v ref 2
• 5v ref 3
• Actr hi ctrl
• Ckp sens sig
• Cooling fans system
• Engine control module (ecm) (front of right valve cover)
• Exhaust sens
• Exhaust sens (2)
• Exhaust sol (1)
• Exhaust sol (2)
• Frp sens sig
• Fuel injector 1 (top of left cylinder bank)
• Fuel injector 2
• Fuel injector 4
• Gen duty cycle sig
• Gen turn on sug
• Hi volt ctrl cyl 1
• Hi volt ctrl cyl 2
• Hi volt ctrl cyl 3
• Hi volt ctrl cyl 4
• Hi volt ctrl cyl 5
• Hi volt ctrl cyl 6
• Hi volt sply cyl 2
• Hi volt sply cyl 3
• Hi volt sply cyl 5
• Hi volt sply cyl 6
• High pressure fuel pump
• Htr rly ctrl
• Ic 1 ctrl
• Ic 3 ctrl
• Ic 5 ctrl
• Ignition coil 1 (top of left cylinder bank)
• Ignition coil 3 (top of left cylinder bank)
• Ignition coil 5 (top of left cylinder bank)
• Intake sens (1)
• Intake sens (2)
• Intake sol
• Intake sol (1)
• J161
• Knock sens sig
• Knock sensor (ks) 2 (side of left cylinder bank)
• Lo ref
• Nca
• Plug spark
• Purge sol ctrl
• Red
• Rly coil ctrl
• Spark plug
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan

6.2L VIN P

6.2L VIN P, Engine Performance Wiring Diagram (1 of 6) for Cadillac CTS 2009

List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (1 of 6) for Cadillac CTS 2009:

• 5 volt ref 1
• 5-volt ref 1
• 5-volt ref 2
• Acc wakeup serial data
• Accelerator pedal position (app) sensor (above accelerator pedal)
• Air conditioning system cooling fans system
• App sens 2 sig
• App sens sig
• Body control module (bcm)
• Canister vent fuse 15a
• Computer data lines system
• Ecm fuse 15a
• Ecm/tcm fuse 15a
• Engine control module (ecm) (front of right valve cover)
• Evaporative emissions (evap) canister vent solenoid valve
• Ftp sig
• Fuel level sensor
• Fuel lvl sens sig
• Fuel pump & sender assembly (in fuel tank)
• Fuel tank pressure (ftp) sensor (in fuel tank)
• Hot at all times
• Hot w/ ign 1 relay energized
• Ign 1 volt
• J400 (fuel tank harness, near inline connector x420)
• J420
• Lo ref
• Low ref
• Main rly ctrl
• Mil ctrl
• Pnk
• Rear fuse block (right rear of luggage compart)
• Rly ctrl
• Sec fuel lvl sens sig supercharger air inlet press sens sig
• Starter rly coil ctrl
• Starting/ charging system
• Stop lp sw sig
• Tan
• Underhood fuse block (right front of engine compt)
• Valve ctrl

6.2L VIN P, Engine Performance Wiring Diagram (2 of 6) for Cadillac CTS 2009

List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (2 of 6) for Cadillac CTS 2009:

• Display fuse 10a
• Ecm pwr fuse 15a
• Emis 1 fuse 15a
• Emis 2 fuse 15a
• Evaporative emissions (evap) canister purge solenoid valve (top right side of engine)
• Even coils fuse 20a
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (left exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (left exhaust pipe, after catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (right exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 2 (right exhaust pipe, after catalytic converter)
• Hot at all times
• J185
• Nca
• Odd coils fuse 20a
• Pnk
• Power distribution system
• Pwr/ trn relay
• Supercharger bypass valve solenoid
• Tan
• Underhood fuse block (right front of engine compt)

6.2L VIN P, Engine Performance Wiring Diagram (3 of 6) for Cadillac CTS 2009

List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (3 of 6) for Cadillac CTS 2009:

• (front of right valve cover) engine control module (ecm)
• (info not available)
• 5 volt ref 1
• 5-volt ref 1
• 5-volt ref 2
• Actuator sig
• Backup lp sw sig
• Baro sens sig
• Barometric pressure (baro) sensor
• Computer data lines system
• Coolant pump ctrl
• Cooling fans system
• Data bus+
• Data bus-
• Ect sens sig
• Eng oil lvl sw sig
• Engine control module (ecm) (front of right valve cover)
• Engine coolant temperature (ect) sensor
• Engine oil temp sig
• Evap ctrl
• G132 (top right of engine)
• Generator field duty cycle signal
• Generator turn on sig
• Gnd
• Ho2s hi sig b2s1
• Ho2s hi sig b2s2
• Ho2s htr lo ctrl b2s1
• Ho2s htr lo ctrl b2s2
• Ho2s lo sig b2s1
• Ho2s lo sig b2s2
• Iat sens sig
• Intake air temperature (iat) sensor
• Lo ref
• Low ref
• Manifold absolute pressure (map) sensor
• Map sens sig
• Pnk
• Rly ctrl
• Sens sig
• Sig pos
• Skip shift sig
• Sol sig
• Starting/ charging system
• Tan
• Transmissions system
• Vehicle speed sensor (vss) (right rear of transmission)
• Vss low sig

6.2L VIN P, Engine Performance Wiring Diagram (4 of 6) for Cadillac CTS 2009

List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (4 of 6) for Cadillac CTS 2009:

• (in oil filter housing) engine oil pressure (eop) sensor
• (on a/c refrigerant line) a/c refrigerant pressure sensor
• (rear bumper fascia harness, near branch to inline connector x430)
• (top right of engine) g132
• Camshaft position (cmp) sensor (front of right cylinder head)
• Computer data lines system
• Crankshaft position (ckp) sensor (right side of engine)
• Engine oil level temperature sensor
• Fuel injectors (top of right cylinder bank)
• G200 (left kick panel)
• Gnd
• Ign
• Instrument panel cluster (ipc)
• J449
• J450
• Knock sensor (ks) 1 (right side of engine block)
• Knock sensor (ks) 2 (side of left cylinder bank)
• Logic
• Low speed
• Malfunction indicator lamp
• Mass air flow (maf)/ intake air temperature (iat) sensor
• Pnk
• Primary fuel pump & sender assembly
• Secondary fuel pump & sender assembly
• Tan

6.2L VIN P, Engine Performance Wiring Diagram (5 of 6) for Cadillac CTS 2009

List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (5 of 6) for Cadillac CTS 2009:

• (front of right valve cover) engine control module (ecm)
• (top of right cylinder bank)
• 5 volt ref 1
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel injectors (top of left cylinder bank)
• G135
• Ho2s hi sig b1s1
• Ho2s hi sig b1s2
• Ho2s lo sig b1s1
• Ho2s lo sig b1s2
• Ic 1 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ign
• Ign 1 volt
• Ignition coil 2
• Ignition coil 4
• Ignition coil 6
• Ignition coil 8
• J135
• J149
• Ks 1 sig
• Ks 2 sig
• Low ref
• Nca
• Pnk
• Spark plug
• Supercharger air inlet pressure sensor
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Throttle body

6.2L VIN P, Engine Performance Wiring Diagram (6 of 6) for Cadillac CTS 2009

List of elements for 6.2L VIN P, Engine Performance Wiring Diagram (6 of 6) for Cadillac CTS 2009:

• (top of left cylinder bank)
• 5 volt ref 1
• 5 volt ref 2
• 5v ref
• Bare
• Batt volt
• Ckp sens sig
• Cmp sens sig
• Computer data lines system
• Data bus +
• Data bus -
• Drain wire
• Engine control module (ecm) (front of right valve cover)
• Fscm fuse 30a
• Fuel inj 1 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel inj 8 ctrl
• Fuel pressure sensor
• Fuel pump flow control module
• G132 (top right of engine)
• G136
• G401 (right rear shock tower)
• Gnd
• Ho2s htr lo ctrl b1s1
• Ho2s htr lo ctrl b1s2
• Hot at all times
• Iat sens sig
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 6 ctrl
• Ign 1 volt
• Ignition coil 1
• Ignition coil 3
• Ignition coil 5
• Ignition coil 7
• J136
• J150
• J423
• Low ref
• Maf sens sig
• Nca
• Nication enable serial data commu-
• Pnk
• Rear fuse block (right rear of luggage compt)
• Rly ctrl
• Sens sig
• Spark plug
• Sply volt
• Tan
• Tp sens 1 sig
• Tp sens 2 sig
• Transmissions system