ENGINE PERFORMANCE – Cadillac STS 2011 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.6L VIN V

3.6L VIN V, Engine Performance Wiring Diagram (1 of 5) for Cadillac STS 2011

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (1 of 5) for Cadillac STS 2011:

• (1, 3 & 5: top right side of engine) fuel injectors
• (18 cm from ignition coil 1 connector)
• (2, 4 & 6: top left side of engine)
• (36 cm from ignition coil module 2 connector)
• (near right front of engine block) g109
• (rear of left cylinder head) high pressure fuel pump
• (right rear side of engine block, near starter) g112
• 5 volt ref 1
• 5 volt ref 2
• 5 volt ref 3
• After boil coolant sply volt
• Anti-lock brakes system
• Camshaft phaser exhaust sol 1
• Ckp sens 1 sig
• Cmp actr sol exhaust bank 2
• Cmp actr sol intake bank 1
• Cmp exhaust sens 1
• Cmp exhaust sens 2
• Cmp intake bank 1 sig
• Cmp sens intake bank 1 sig
• Cmp sens intake bank 2 sig
• Engine control module (ecm) (front of engine, on right valve cover)
• Evap cnstr purge sol ctrl
• Frp sens sig
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Generator field duty cycle sig
• Generator turn on sig
• Ic 1 ctrl
• Ic 3 ctrl
• Ic 5 ctrl
• Ignition coil 1 (on top front of left valve cover)
• Ignition coil 2 (on top front of right valve cover)
• Ignition coil 3 (on top center of left valve cover)
• Ignition coil 4 (on top center of right valve cover)
• Ignition coil 5 (on top rear of left valve cover)
• Ignition coil 6 (on top rear of right valve cover)
• J127
• J128
• J129
• J131
• Low ref
• Low ref hi press fuel pump actr sol ctrl
• Nca
• Plug spark
• Sound systems
• Spark plug
• Starting/charging system
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Vacuum pump rly ctrl
• Vehicle spd sig
• X160
• X161

3.6L VIN V, Engine Performance Wiring Diagram (2 of 5) for Cadillac STS 2011

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (2 of 5) for Cadillac STS 2011:

• (bank 1 sens 1) ho2s lo sig
• (bank 1 sens 1) ho2s low ref
• (bank 2 sens 1)
• (bank 2 sens 1) ho2s ref volt
• (bank 2 sens 1) low ref
• (on left exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1
• (on right exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 1
• (on right side of engine, near valve cover) evaporative emissions (evap) canister purge solenoid valve
• (top left front of engine) camshaft position (cmp) actuator solenoid valve exhaust bank 2
• (top left front of engine) camshaft position (cmp) actuator solenoid valve intake bank 2
• (top right front of engine) camshaft position (cmp) actuator solenoid valve exhaust bank 1
• (top right front of engine) camshaft position (cmp) actuator solenoid valve intake bank 1
• Ect sens sig
• Engine control module (ecm) (front of engine, on right valve cover)
• Engine coolant temperature (ect) sensor (in center of left cylinder head)
• Engine oil pressure (eop) sensor (on left side of engine, attached to oil filter adapter housing)
• Fuel inj 1 ctrl
• Fuel inj 4 ctrl
• Ho2s hi sig
• Ho2s htr lo ctrl
• Ic 2 ctrl
• Ic 4 ctrl
• Ic 6 ctrl
• Ign 1 volt
• J101
• Knock sens 1 sig
• Knock sens 2 sig
• Knock sensor (ks) bank 1 (on right side of engine)
• Knock sensor (ks) bank 2 (on left side of engine)
• Low ref
• Nca
• Oil press sens sig
• Tan
• Tp sens 1 sig
• Tp sens 2 sig
• X1 (bank 1 sens 1) ho2s htr lo ctrl

3.6L VIN V, Engine Performance Wiring Diagram (3 of 5) for Cadillac STS 2011

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (3 of 5) for Cadillac STS 2011:

• (in engine compt, on fuel rail)
• (left front side of engine block) auxiliary coolant pump
• 5 volt ref
• A/c cmprsr cltch relay
• Brake vac pump fuse 15a
• Brk vac pump relay
• Camshaft position (cmp) sensor exhaust bank 1 (top right front of engine)
• Camshaft position (cmp) sensor exhaust bank 2 (top left front of engine)
• Camshaft position (cmp) sensor intake bank 1 (top front of engine)
• Camshaft position (cmp) sensor intake bank 2 (top front of engine)
• Ckp sig
• Cmp sig
• Crankshaft position sensor (lower right rear of engine)
• Ecm 1 fuse 15a
• Ecm/tcm batt fuse 10a
• Even coils fuse 15a
• Fan s/p relay
• Fuel cool fuse 10a
• Fuel cool relay
• Fuel rail pressure (frp) sensor
• G100 (on rear side of right cylinder head)
• Hi fan spd relay
• Hot at all times
• J124
• J160
• Lo fan spd relay
• Low ref
• Odd coils fuse 15a
• Pnk
• Post o2 snsr fuse 15a
• Pre o2 snsr fuse 15a
• Pwr/trn relay
• Sens 1 exhaust
• Sens 2 exhaust
• Sens rtn
• Tan
• Throttle body assembly (top front of engine)
• Tps1
• Tps2
• Underhood fuse block (right front side of engine compt)
• X102
• X161

3.6L VIN V, Engine Performance Wiring Diagram (4 of 5) for Cadillac STS 2011

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (4 of 5) for Cadillac STS 2011:

• (in fuel tank jumper harness, 28 cm from fuel tank pressure sensor connector)
• Cnstr vent fuse 10a
• Evaporative emissions (evap) canister vent solenoid valve (under rear of vehicle, above rear differential)
• Fuel pump
• Fuel pump & sender assembly (in fuel tank)
• Fuel pump fuse 20a
• Fuel pump relay
• Fuel tank pressure (ftp) sensor (attached to evap canister vent solenoid, at rear of fuel tank)
• G401 (in rear compt, to rear of right rear shock tower)
• Hot at all times
• J/c
• J406
• Left fuel tank sensor
• R11
• R12
• R13
• R15
• Right rear fuse block (under right side of rear seat)
• Secondary fuel level sensor (top left of fuel tank)
• Tan
• X101
• X420

3.6L VIN V, Engine Performance Wiring Diagram (5 of 5) for Cadillac STS 2011

List of elements for 3.6L VIN V, Engine Performance Wiring Diagram (5 of 5) for Cadillac STS 2011:

• (in air intake duct) mass air flow (maf)/intake air temperature (iat) sensor
• (in engine harness, 52 cm from ho2s bank 1 sensor 2 connector)
• (on left exhaust pipe, after catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 2
• (on rear side of right cylinder head) g100
• (on right exhaust pipe, after catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 2
• 5 volt ref 1
• 5 volt ref 2
• 5 volt ref 3
• A/c compressor clutch rly ctrl hi spd cooling fan rly ctrl
• A/c refrigerant pressure sensor
• Accelerator pedal position (app) sensor (attached to top of accelerator pedal)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• B pnk
• Batt positive volt
• Computer data lines system
• Cooling fans system
• E tan
• Ecm/tcm ign fuse 15a
• Ecm/tcm serial data wake up hi spd gmlan serial data bus (+)
• Engine control module (ecm) (front of engine, on right valve cover)
• Evap canister vent sol ctrl ho2s htr lo ctrl (bank 2 sens 2) mil ctrl
• Fuel lvl sens sig
• Fuel pump rly ctrl
• Fuel tank press sens sig
• G100 (on rear side of right cylinder head)
• Gmlan serial data bus (-)
• Gnd
• Ho2s hi sig (bank 1 sens 2) a/c refrig press sens sig
• Ho2s hi sig (bank 2 sens 2)
• Ho2s htr lo sig (bank 2 sens 2)
• Hot w/ run/crnk relay energized
• Iat sens sig
• Ign
• Ign 1 vol
• Ign 1 volt
• Ign 1 volt ho2s htr lo ctrl (bank 1 sens 2)
• Ign lk cyl ctrl actr sig
• Instrument panel cluster (ipc)
• J104
• J106
• J109
• J152
• Lo spd cooling fan rly ctrl
• Lo spd gmlan serial data
• Logic
• Low ref
• Low ref ho2s htr lo sig (bank 1 sens 2)
• Maf sens sig
• Main rly ctrl
• Malfunction ind
• Nca
• Pnk
• Run/ crank ign 1 volt
• Sens sig
• Starter rly coil ctrl
• Starting/charging system
• Stop lamp sw sig
• Tan
• Tan c
• Transmissions system
• Underhood fuse block (right front side of engine compt)
• X101
• X102
• X420