ENGINE PERFORMANCE – Cadillac XLR 2008 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.4L VIN D

4.4L VIN D, Engine Performance Wiring Diagram (1 of 5) for Cadillac XLR 2008

List of elements for 4.4L VIN D, Engine Performance Wiring Diagram (1 of 5) for Cadillac XLR 2008:

• (behind right side of dash) body control module (bcm)
• (right rear of engine compt) underhood fuse block
• 5v ref 1
• A/c comp clutch rly
• Acc vlt
• Acc vlt sig
• Accelerator pedal position (app) sensor (top of accelerator pedal assembly)
• Air conditioning system
• Apps 1 sig
• Apps 2 sig
• B10 pnk
• Batt pos vlt
• D11
• Ecm fuse 16 15a
• Ecm/ tcm fuse 11 15a
• Eng speed sig
• Engine control module (ecm) (lower right rear of engine compt)
• Etc fuse 9 15a
• Evap vent sol ctrl
• Evaporative emission (evap) canister vent solenoid valve
• F10
• F13
• F14
• Ftp sens sig
• Fuel lvl sens primary
• Fuel lvl sens secondary
• Fuel pmp rly ctrl
• G106
• Gnd
• H13
• H14
• Hot at all times
• Ign 1 relay
• Ign 1 vlt
• Ign 1 vol
• Ign1 rly ctrl
• Intake air temperature (iat)/ mass air flow (maf) sensor (in air intake)
• J420
• Jx106 (in engine harness, right rear of engine compartment by battery, grounded to g106)
• Logic
• Low ref
• Maf sens sig
• Manifold absolute pressure (map) sensor (right side of intake manifold)
• Mil ctrl
• Mrrtd fuse 25a
• Pnk
• Run/ crank relay 7
• Run/ crank rly ctrl
• Sciap sens sig
• Starting/ charging system
• Stop lamp sw sig
• Stp lmp sw sig
• Str enable rly ctrl
• Tan
• To emission fuse 14 (diagram 4 of 5)
• Transmissions system
• Vehicle speed sig

4.4L VIN D, Engine Performance Wiring Diagram (2 of 5) for Cadillac XLR 2008

List of elements for 4.4L VIN D, Engine Performance Wiring Diagram (2 of 5) for Cadillac XLR 2008:

• (between driver & passenger seat, behind rear compt stowage trim panel) object alarm module
• (in left exhaust pipe, before catalytic converter) heated oxygen sensor (ho2s) bank 2 sensor 1
• (in right side exhaust, before catalytic converter) heated oxygen sensor (ho2s) bank 1 sensor 1
• (right rear of engine compt) underhood fuse block
• (top left side of dash) heads up display (hud)
• A14
• A15
• B14
• Barometric pressure (baro) sensor (top left side of engine)
• Class 2 ser data
• Computer data lines system
• D10 pnk
• Driver information center (dic)
• E10 pnk
• Engine control module (ecm) (lower right rear of engine compt)
• Engine coolant temperature (ect) sensor (rear side of right cylinder head)
• Ess
• From odd b inj fuse 12 (diagram 4 of 5)
• Gen turn on sig
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (right side exhaust, after catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 2 (in left exhaust pipe, after catalytic converter)
• Ho2s hi sig b2s2
• Ho2s lo ref b2s1
• Ho2s low sig b2s2
• Ho2s ref vlt b2s1
• Ign
• Instrument panel cluster (ipc)
• Intake air temperature sensor
• J211 (in instrument panel harness, approximately 25 cm from park brake pedal assembly breakout)
• Logic
• Mil ind
• Nca
• O2 sen fuse 6 15a
• Pnk
• Radio
• Starting/ charging system
• Tan
• Underhood fuse block (right rear of engine compt)
• Vss
• X2 pnk

4.4L VIN D, Engine Performance Wiring Diagram (3 of 5) for Cadillac XLR 2008

List of elements for 4.4L VIN D, Engine Performance Wiring Diagram (3 of 5) for Cadillac XLR 2008:

• (in left fuel tank) fuel pump & sender assembly
• (next to charge air cooler coolant pump) charge air cooler (cac) coolant pump relay
• (top of right fuel tank) fuel tank pressure (ftp) sensor
• (top of right fuel tank) right fuel level sensor
• (top rear of engine, near throttle body) evaporative emission (evap) canister purge solenoid valve
• 5v ref 1
• 5v ref 2
• A/c press sens sig
• A/c refrigerant pressure sensor (right side of engine compt)
• Baro sens sig
• Bypass valve ctrl
• C10
• Charge air cooler (cac) coolant pump
• Computer data lines system
• Cool fan spd ctrl
• Coolant pmp rly ctrl
• Cooling fans system
• Data bus+
• Data bus-
• Ect sen sig
• Engine control module (ecm) (lower right rear of engine compt)
• Evap cnstr pur sol ctrl
• Fuel level sensor
• Fuel pump
• Fuel pump fuse 10 20a
• Fuel pump relay
• G102
• G106
• G401 (on left rear frame, near left rear wheelwell)
• Gen field duty cyc sig
• Ground
• Ho2s htr lo ctrl b2s1
• Ho2s htr lo ctrl b2s2
• Hot at all times
• Iat2 sig
• J460 (in fuel tank harness, approximately 6 cm tan from x420 breakout)
• Jx102 (in engine compt, on upper right frame rail, grounded to g102) g102
• Jx102 (in forward lamp harness, in engine compt, on upper right frame rail, grounded to g102)
• Jx106 (in engine harness, right rear of engine compt by battery, grounded to g106)
• Left fuel level sensor
• Low ref
• Map sen sig
• Oil lev sw sig
• Park/neutral sig
• Pnk
• Starting/ charging system
• Tan
• Underhood fuse block (right rear of engine compartment)
• W/s wash/ intercool fuse 17 15a

4.4L VIN D, Engine Performance Wiring Diagram (4 of 5) for Cadillac XLR 2008

List of elements for 4.4L VIN D, Engine Performance Wiring Diagram (4 of 5) for Cadillac XLR 2008:

• (approximately 3 cm from breakout for ignition coil 3)
• (approximately 3 cm from breakout for ignition coil 4)
• (approximately 7 cm from breakout for ignition coil 3)
• (approximately 7 cm from breakout for ignition coil 4) j135
• (left rear of engine block) g107
• (right rear of engine compt) underhood fuse block
• (top of left cylinder head)
• (top of right cylinder head)
• A11
• B tan
• B11
• C8 pnk (approximately 20 cm from underhood fuse block) j105
• Emission fuse 14 15a
• Engine oil level & temperature sensor
• Engine oil pressure (eop) sensor (lower left side of engine)
• Even inj fuse 16 15a
• From ign 1 a relay 44 (diagram 1 of 5)
• Fuel injectors (fuel injector 1, 3, 5 & 7: top of right intake manifold) (fuel injector 2, 4, 6 & 8: top of left intake manifold)
• Ignition coils/ modules
• J131
• J133
• J142
• J144
• J146
• Nca
• Odd inj fuse 12 15a
• Pnk
• Pnk a
• Red
• Red b
• Spark plug
• Supercharger bypass valve solenoid
• Supercharger inlet air pressure sensor
• Tan
• To o2 sen fuse 6 (diagram 2 of 5)

4.4L VIN D, Engine Performance Wiring Diagram (5 of 5) for Cadillac XLR 2008

List of elements for 4.4L VIN D, Engine Performance Wiring Diagram (5 of 5) for Cadillac XLR 2008:

• (in block, under left side of intake manifold) knock sensor (ks) 2
• (ks) 1
• (right front of engine) knock sensor
• 5v ref 1
• 5v ref 2
• Camshaft position (cmp) actuator solenoid bank 1 exhaust (front of right cylinder head)
• Camshaft position (cmp) actuator solenoid bank 1 intake (top front of right cylinder head)
• Camshaft position (cmp) actuator solenoid bank 2 exhaust (front of left cylinder head)
• Camshaft position (cmp) actuator solenoid bank 2 intake (front of left cylinder head)
• Camshaft position (cmp) sensor bank 1 exhaust (front of right cylinder head)
• Camshaft position (cmp) sensor bank 1 intake (top front of right cylinder head)
• Camshaft position (cmp) sensor bank 2 exhaust (top front of left cylinder head)
• Camshaft position (cmp) sensor bank 2 intake (top front of left cylinder head)
• Ckp sen sig
• Cmp act sol b1 exhst
• Cmp act sol b1 intk
• Cmp act sol b2 exhst
• Cmp act sol b2 intk
• Cmp sens sig b1 exhaust
• Cmp sens sig b1 intake
• Cmp sens sig b2 exhaust
• Cmp sens sig b2 intake
• Crankshaft position (ckp) sensor (under intake manifold)
• Eng oil temp sens
• Engine control module (ecm) (lower right rear of engine compt)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel inj 7 ctrl
• Fuel inj 8 ctrl
• G106
• Ground
• Ho2s hi sig b1s2
• Ho2s htr lo ctrl b1s1
• Ho2s htr lo ctrl b1s2
• Ho2s lo ref b1s1
• Ho2s lo ref vlt b1s1
• Ho2s lo sig b1s2
• Iat sens 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 vlt
• Jx106 (in engine harness, right rear of engine compt by battery, grounded to g106)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Maf sens sig
• Oil pressure sen sig
• Pnk
• Red
• Tac mtr ctrl 1
• Tac mtr ctrl 2
• Tan
• Throttle body assembly (top of engine, at intake manifold)
• Tps 1 sig
• Tps 2 sig

4.6L VIN A

4.6L VIN A, Engine Performance Wiring Diagram (1 of 6) for Cadillac XLR 2008

List of elements for 4.6L VIN A, Engine Performance Wiring Diagram (1 of 6) for Cadillac XLR 2008:

• 5v ref 1
• 5v ref 2
• A/c comp clutch rly ctrl
• Acc vol
• Accelerator pedal position (app) sensor (top of accelerator pedal assembly)
• Air conditioning system
• App sens 1 sig
• App sens 2 sig
• Battery + vlt
• D11
• Ecm/ tcm fuse 11 15a
• Engine control module (ecm) (lower right rear of engine compt)
• Engine speed sig
• Etc fuse 9 15a
• Evap canister vent sol ctrl
• Evaporative emission (evap) canister vent solenoid valve
• F10
• F13
• F14
• Fuel lvl sens pri
• Fuel lvl sens sec
• Fuel pump rly ctrl
• Fuel tank press sens sig
• H13
• H14
• Hot at all times
• Ign 1 relay
• Ign 1 vlt
• Ignition 1 rly ctrl
• J420
• Low ref
• Mil ctrl
• Mrrtd fuse 25a
• Pnk
• Starter enable rly ctrl
• Starting/ charging system
• Stop lamp sw sig
• Tan
• To emission fuse 14 (diagram 4 of 6)
• Transmissions system
• Underhood fuse block (right rear of engine compt)
• Vehicle speed sig

4.6L VIN A, Engine Performance Wiring Diagram (2 of 6) for Cadillac XLR 2008

List of elements for 4.6L VIN A, Engine Performance Wiring Diagram (2 of 6) for Cadillac XLR 2008:

• (between driver & passenger seat, behind rear compt stowage trim panel) object alarm module
• (top left side of dash) heads up display (hud)
• A14
• A15
• Acc vlt sig
• B10
• B14
• Body control module (bcm) (behind right side of dash)
• C10
• Class 2 ser data
• Computer data lines system
• Driver information center (dic)
• Ecm fuse 16 15a
• Engine control module (ecm) (lower right rear of engine compt)
• Engine oil level switch (lower right side of engine)
• Ess
• G102
• G106
• Gen turn on sig
• Gnd
• Heated oxygen sensor (ho2s) bank 2 sensor 1 (in left exhaust pipe, before catalytic converter)
• Heated oxygen sensor (ho2s) bank 2 sensor 2 (in left exhaust pipe, after catalytic converter)
• Ho2s hi sig b2s2
• Ho2s low ref b2s1
• Ho2s low sig b2s2
• Ho2s ref vol b2s1
• Hot at all times
• Iat sens sig
• Ign 1 vol
• Instrument panel cluster (ipc)
• Intake air temperature (iat)/ mass air flow (maf) sensor (front of engine compt)
• Jx102 (in forward lamp harness, in engine compt, on upper right frame rail, grounded to g102)
• Jx106 (right rear of engine compt by battery, grounded to g106)
• Logic
• Low ref
• Maf sens sig
• Mil ind
• Nca
• Pnk
• Radio
• Run/ crank relay 7
• Run/ crank rly ctrl
• Starting/ charging system
• Stp lmp sw sig
• Tan
• Underhood fuse block (right rear of engine compt)
• Underhood fuse block (right rear of engine compt) x1
• Vss
• X3 c3

4.6L VIN A, Engine Performance Wiring Diagram (3 of 6) for Cadillac XLR 2008

List of elements for 4.6L VIN A, Engine Performance Wiring Diagram (3 of 6) for Cadillac XLR 2008:

• (in fuel tank harness, approximately 6 cm from tan x420 breakout)
• (in left fuel tank) fuel pump & sender assembly
• (top of right fuel tank) fuel tank pressure (ftp) sensor
• (top of right fuel tank) right fuel level sensor
• 5v ref 1
• 5v ref 2
• A/c pressure sens sig
• A/c refrigerant pressure sensor (right side of engine compt)
• C10
• Computer data lines system
• Cooling fan speed ctrl
• Cooling fans system
• Data bus +
• Data bus -
• Ect sens sig
• Engine control module (ecm) (lower right rear of engine compt)
• Engine coolant temperature (ect) sensor (rear side of right cylinder head)
• Evap cnstr pur sol ctrl
• Fuel level sensor
• Fuel pump
• Fuel pump fuse 10 20a
• Fuel pump relay
• G102
• G106
• G401 (on left rear frame, near left rear wheelwell)
• Gen field duty cyc sig
• Gnd
• H02s htr low ctrl b2s1
• H02s htr low ctrl b2s2
• Hot at all times
• J460
• Jx102 (in forward lamp harness, in engine compt, on upper right frame rail, grounded to g102)
• Jx106 (right rear of engine compt by battery, grounded to g106)
• Low ref
• Map sens sig
• Oil level sw sig
• Park/neutral sig
• Pnk
• Starting/ charging system
• Tan
• Underhood fuse block (right rear of engine compt)

4.6L VIN A, Engine Performance Wiring Diagram (4 of 6) for Cadillac XLR 2008

List of elements for 4.6L VIN A, Engine Performance Wiring Diagram (4 of 6) for Cadillac XLR 2008:

• (approxi- mately 3 cm from breakout for ignition coil 4)
• (approximately 3 cm from breakout for ignition coil 3)
• (center front of engine) evaporative emission (evap) canister purge solenoid valve
• (right rear of engine compt) underhood fuse block
• A11
• B tan
• B11
• D d
• Emission fuse 14 15a
• Even inj fuse 16 15a
• From ign 1 a relay 44 (diagram 1 of 6)
• Fuel injectors (fuel injector 1, 3, 5 & 7: top of right intake manifold) (fuel injector 2, 4, 6 & 8: top of left intake manifold)
• G107
• Ignition coils/ modules (top of left cylinder head)
• Ignition coils/ modules (top of right cylinder head)
• J105 (approximately 20 cm from underhood fuse block)
• J131
• J135 (approximately 7 cm from breakout for ignition coil 4)
• J146 (approxi- mately 7 cm from breakout for ignition coil 3)
• Manifold absolute pressure (map) sensor (top front of engine)
• Nca
• Odd inj fuse 12 15a
• Pnk
• Pnk a
• Red
• Red b
• Spark plug
• Tan
• To o2 sen fuse 6 (diagram 5 of 6)

4.6L VIN A, Engine Performance Wiring Diagram (5 of 6) for Cadillac XLR 2008

List of elements for 4.6L VIN A, Engine Performance Wiring Diagram (5 of 6) for Cadillac XLR 2008:

• (in block, under left side of intake manifold) knock sensor (ks) 2
• (ks) 1
• (lower right front of engine)
• (right front of engine) knock sensor
• (right rear of engine compt) underhood fuse block
• (top front of engine)
• 5v ref
• A pnk
• B tan
• Camshaft position (cmp) actuator solenoid bank 1 exhaust (right front of engine)
• Camshaft position (cmp) actuator solenoid bank 1 intake
• Camshaft position (cmp) actuator solenoid bank 2 exhaust (left front of engine)
• Camshaft position (cmp) actuator solenoid bank 2 intake (lower left front of engine)
• Camshaft position (cmp) sensor bank 1 exhaust
• Camshaft position (cmp) sensor bank 1 intake
• Camshaft position (cmp) sensor bank 2 exhaust
• Camshaft position (cmp) sensor bank 2 intake
• D10
• E10
• Engine oil pressure (eop) sensor (lower left side of engine)
• From b odd inj fuse 12 (diagram 4 of 6)
• Heated oxygen sensor (ho2s) bank 1 sensor 1 (in right side exhaust, before catalytic converter)
• Heated oxygen sensor (ho2s) bank 1 sensor 2 (right side exhaust, after catalytic converter)
• Logic
• Low ref
• Nca
• O2 sen fuse 6 15a
• Pnk
• Pnk/
• Red
• Sens sig
• Tan

4.6L VIN A, Engine Performance Wiring Diagram (6 of 6) for Cadillac XLR 2008

List of elements for 4.6L VIN A, Engine Performance Wiring Diagram (6 of 6) for Cadillac XLR 2008:

• 5v ref 1
• 5v ref 2
• Ckp sens sig
• Cmp act sol b1 exhaust
• Cmp act sol b1 intake
• Cmp act sol b2 exhaust
• Cmp act sol b2 intake
• Cmp sens sig b1 exhaust
• Cmp sens sig b1 intake
• Cmp sens sig b2 exhaust
• Cmp sens sig b2 intake
• Crankshaft logic position (ckp) sensor (upper center of engine)
• Engine control module (ecm) (lower right rear of engine compt)
• Fuel inj 1 ctrl
• Fuel inj 2 ctrl
• Fuel inj 3 ctrl
• Fuel inj 4 ctrl
• Fuel inj 5 ctrl
• Fuel inj 6 ctrl
• Fuel inj 7 ctrl
• Fuel inj 8 ctrl
• G106
• Ground
• H02s low ref b1s1
• H02s ref vol b1s1
• Ho2s hi sig b1s2
• Ho2s htr low ctrl b1s1
• Ho2s htr low ctrl b1s2
• Ho2s low sig b1s2
• Iat sens sig
• Ic 2 ctrl
• Ic 3 ctrl
• Ic 4 ctrl
• Ic 5 ctrl
• Ic 6 ctrl
• Ic 7 ctrl
• Ic 8 ctrl
• Ic1 ctrl
• Ign 1 vol
• Jx106 (right rear of engine compt by battery, grounded to g106)
• Ks 1 sig
• Ks 2 sig
• Low ref
• Maf sens sig
• Oil press sens sig
• Pnk
• Red
• Sen sig
• Tac motor ctrl 1
• Tac motor ctrl 2
• Tan
• Tan c
• Throttle body assembly (top of engine, at intake manifold)
• Tp sens 1 sig
• Tp sens 2 sig