ENGINE PERFORMANCE – Cadillac DeVille d’Elegance 1999 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.6L

4.6L VIN 9, Engine Performance Wiring Diagrams (1 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (1 of 4) for Cadillac DeVille d'Elegance 1999:

• 5 volt ref
• A/c comp clutch ctrl
• Air conditioning system
• Automatic transaxle
• Automatic transaxle input speed sensor
• Class 2 data link
• Computer data lines system
• Cruise control system
• Cruise engaged
• Cruise inhibit
• Ect sens return
• Egr 5v ref out
• Egr pos sens return
• Electronic suspension system
• Engine coolant emperature sensor (ect) (right rear of eng, below egr valve)
• Evaporative emission control solenoid (top rear of eng, on rear cam cover)
• Exhaust gas recirc- ulation valve (top left rear of eng)
• Extended travel brake
• Fuel pump feedback
• G117 (lower right rear of engine block)
• Gen 'f' term feedback
• Iac sol coil ctrl
• Iat sens return
• Idle air control (iacv) valve (on throttle body assembly)
• Intake air temperature (iat) sensor (left font of of eng compt, in intake duct)
• Lift/dive sig out
• Map 5v ref out
• Map sens in
• Map sensor return
• Mass air flow sensor (on air inlet of throttle body)
• Neutral safety sw in
• Park/neutral sw 'a'
• Park/neutral sw 'b'
• Park/neutral sw 'c'
• Pcm ground
• Pnk
• Post cat ho2s in hi
• Post cat ho2s in lo
• Power (battery)
• Power (ignition 0)
• Power (ignition 1)
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Pwr steer pres sw in
• Red
• S125
• Sensor ground
• Shift 'a' sol ctrl
• Shift 'b' sol ctrl
• Starting/ charging system
• Tan
• Tcc brake sw in
• Tcc sol ctrl
• Throttle position sensor (on throttle body assembly)
• Tp sens in
• Tp sens return
• Tps 5v ref out
• Trans press sol ctrl
• Trans press sol enable
• Trans press sw 'a' in
• Trans press sw 'b' in
• Trans press sw 'c' in
• Trans temp sens in
• Trans temp sens rtrn
• Turbine speed in hi
• Turbine speed in lo

4.6L VIN 9, Engine Performance Wiring Diagrams (2 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (2 of 4) for Cadillac DeVille d'Elegance 1999:

• 1-2 shift sol
• 2-3 shift sol
• Abs/tcc switch (on brake pedal support)
• Automatic transaxle
• Automatic transmission
• Cruise control system
• Dis fuse 20a
• Ecs fuse 10a
• Evaporative emissions vent valve (under center rear of vehicle)
• Fluid pressure manual valve position switch
• Fuel tank pressure sensor (on fuel tank)
• Hot at all times
• Hot in off or run
• Hot in run and start
• Ign 0 fuse 10a
• Ign 1 fuse 10a
• Manifold absolute pressure sensor (on throttle body)
• Oxy sen 1 fuse 10a
• Oxy sen 2 fuse 10a
• Pcm (bat) fuse 10a
• Pcm (ign) fuse 10a
• Pnk
• Pressure control solenoid
• Red
• S113
• S124
• S126
• S308
• Tan
• Torque converter clutch solenoid
• Trans- axle temper- ature sensor
• Underhood fuse block

4.6L VIN 9, Engine Performance Wiring Diagrams (3 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (3 of 4) for Cadillac DeVille d'Elegance 1999:

• (engine harn, 4 cm from pcm connector)
• (not used)
• (right top of eng, under ignition coils)
• Camshaft position (cmp) sensor (right front of eng on cam carrier)
• Crankshaft position (ckp) sensor a (left side of eng block, near oil dipstick)
• Crankshaft position (ckp) sensor b (left side of eng block, near oil dipstick)
• Cruise fuse 10a
• Engine oil pressure switch (front center of eng, near base of oil level indicator)
• Fuel pump fuse 20a
• Fuel pump relay (in eng compt fuse/relay center)
• Fuel tank unit (top of fuel tank)
• G117 (lower left rear of engine block)
• G117 (lower right rear of engine block)
• G312 (behind left rear seat, on 'x' brace)
• Hot in run and start
• Ign
• Ignition amplifier and switching module
• Ignition control module
• Instrument cluster
• Park/ neutral position switch (left side of transaxle)
• Pnk
• Power steering pressure switch (on high pressure power steering line)
• Rear compart- ment fuse block
• Rly ign 1 fuse 10a
• S123
• S125
• S149
• S318
• S402
• Service engine soon indicator
• Spark plugs
• Tach signal in
• Tan
• Under- hood fuse block
• Vehicle speed sensor (near right eng mount, on transaxle)
• Vss in

4.6L VIN 9, Engine Performance Wiring Diagrams (4 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (4 of 4) for Cadillac DeVille d'Elegance 1999:

• (fuel rail harness, left front of engine)
• (or 902)
• 1665
• 24x ref hi in
• 4x ref hi in
• Anti-lock brakes system
• Bypass spark out
• Cam hi in
• Cool fan hi speed ctrl
• Cool fan lo speed ctrl
• Cooling fans system
• Cruise control system
• Delivered torque out
• Desired torque in
• Early production
• Ect sens in
• Egr valve feedback
• Egr valve sol ctrl
• Electronic suspension system
• Engine oil level switch (in eng oil pan)
• Evap ctrl sol out
• Evap vent ctrl
• Front ho2s in hi
• Front ho2s in lo
• 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
• Fuel injectors
• Fuel pump relay ctrl
• G114 (left rear of engine)
• G117 (lower right rear of engine block)
• Heated oxygen sensor bank 1 sensor 1 (rear of exhaust manifold)
• Heated oxygen sensor bank 1 sensor 2 (early production) (front of catalytic converter)
• Heated oxygen sensor bank 1 sensor 3 (rear of catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (front exhaust manifold)
• Hot in run, bulb test or start
• Iat sens in
• Ignition ctrl feedback
• Inj fuse 10a
• Knock sens in
• Knock sensor (center of eng, below intake manifold)
• Late production
• Maf sens in
• Mil indic ctrl
• Nca
• Oil level sw in
• Oil press sens in
• Pcm ground
• Pnk
• Pnk d
• Power (ignition 1)
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Pre-cat ho2s in hi
• Pre-cat ho2s in lo
• Pressure sensor signal
• Rear h02s in lo
• Rear ho2s in hi
• Ref lo in
• S110
• S111
• S125
• S127
• Tach signal out
• Tan
• Tan a
• Under- hood fuse block
• Used) (or not
• Vss in hi
• Vss in lo
• Vss out (4000 ppm)

4.6L VIN Y, Engine Performance Wiring Diagrams (1 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (1 of 4) for Cadillac DeVille d'Elegance 1999:

• 5 volt ref
• A/c comp clutch ctrl
• Air conditioning system
• Automatic transaxle
• Automatic transaxle input speed sensor
• Class 2 data link
• Computer data lines system
• Cruise control system
• Cruise engaged
• Cruise inhibit
• Ect sens return
• Egr 5v ref out
• Egr pos sens return
• Electronic suspension system
• Engine coolant emperature sensor (ect) (right rear of eng, below egr valve)
• Evaporative emission control solenoid (top rear of eng, on rear cam cover)
• Exhaust gas recirc- ulation valve (top left rear of eng)
• Extended travel brake
• Fuel pump feedback
• G117 (lower right rear of engine block)
• Gen 'f' term feedback
• Iac sol coil ctrl
• Iat sens return
• Idle air control (iacv) valve (on throttle body assembly)
• Intake air temperature (iat) sensor (left font of of eng compt, in intake duct)
• Lift/dive sig out
• Map 5v ref out
• Map sens in
• Map sensor return
• Mass air flow sensor (on air inlet of throttle body)
• Neutral safety sw in
• Park/neutral sw 'a'
• Park/neutral sw 'b'
• Park/neutral sw 'c'
• Pcm ground
• Pnk
• Post cat ho2s in hi
• Post cat ho2s in lo
• Power (battery)
• Power (ignition 0)
• Power (ignition 1)
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Pwr steer pres sw in
• Red
• S125
• Sensor ground
• Shift 'a' sol ctrl
• Shift 'b' sol ctrl
• Starting/ charging system
• Tan
• Tcc brake sw in
• Tcc sol ctrl
• Throttle position sensor (on throttle body assembly)
• Tp sens in
• Tp sens return
• Tps 5v ref out
• Trans press sol ctrl
• Trans press sol enable
• Trans press sw 'a' in
• Trans press sw 'b' in
• Trans press sw 'c' in
• Trans temp sens in
• Trans temp sens rtrn
• Turbine speed in hi
• Turbine speed in lo

4.6L VIN Y, Engine Performance Wiring Diagrams (2 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (2 of 4) for Cadillac DeVille d'Elegance 1999:

• 1-2 shift sol
• 2-3 shift sol
• Abs/tcc switch (on brake pedal support)
• Automatic transaxle
• Automatic transmission
• Cruise control system
• Dis fuse 20a
• Ecs fuse 10a
• Evaporative emissions vent valve (under center rear of vehicle)
• Fluid pressure manual valve position switch
• Fuel tank pressure sensor (on fuel tank)
• Hot at all times
• Hot in off or run
• Hot in run and start
• Ign 0 fuse 10a
• Ign 1 fuse 10a
• Manifold absolute pressure sensor (on throttle body)
• Oxy sen 1 fuse 10a
• Oxy sen 2 fuse 10a
• Pcm (bat) fuse 10a
• Pcm (ign) fuse 10a
• Pnk
• Pressure control solenoid
• Red
• S113
• S124
• S126
• S308
• Tan
• Torque converter clutch solenoid
• Trans- axle temper- ature sensor
• Underhood fuse block

4.6L VIN Y, Engine Performance Wiring Diagrams (3 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (3 of 4) for Cadillac DeVille d'Elegance 1999:

• (engine harn, 4 cm from pcm connector)
• (not used)
• (right top of eng, under ignition coils)
• Camshaft position (cmp) sensor (right front of eng on cam carrier)
• Crankshaft position (ckp) sensor a (left side of eng block, near oil dipstick)
• Crankshaft position (ckp) sensor b (left side of eng block, near oil dipstick)
• Cruise fuse 10a
• Engine oil pressure switch (front center of eng, near base of oil level indicator)
• Fuel pump fuse 20a
• Fuel pump relay (in eng compt fuse/relay center)
• Fuel tank unit (top of fuel tank)
• G117 (lower left rear of engine block)
• G117 (lower right rear of engine block)
• G312 (behind left rear seat, on 'x' brace)
• Hot in run and start
• Ign
• Ignition amplifier and switching module
• Ignition control module
• Instrument cluster
• Park/ neutral position switch (left side of transaxle)
• Pnk
• Power steering pressure switch (on high pressure power steering line)
• Rear compart- ment fuse block
• Rly ign 1 fuse 10a
• S123
• S125
• S149
• S318
• S402
• Service engine soon indicator
• Spark plugs
• Tach signal in
• Tan
• Under- hood fuse block
• Vehicle speed sensor (near right eng mount, on transaxle)
• Vss in

4.6L VIN Y, Engine Performance Wiring Diagrams (4 of 4) for Cadillac DeVille d'Elegance 1999

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (4 of 4) for Cadillac DeVille d'Elegance 1999:

• (fuel rail harness, left front of engine)
• (or 902)
• 1665
• 24x ref hi in
• 4x ref hi in
• Anti-lock brakes system
• Bypass spark out
• Cam hi in
• Cool fan hi speed ctrl
• Cool fan lo speed ctrl
• Cooling fans system
• Cruise control system
• Delivered torque out
• Desired torque in
• Early production
• Ect sens in
• Egr valve feedback
• Egr valve sol ctrl
• Electronic suspension system
• Engine oil level switch (in eng oil pan)
• Evap ctrl sol out
• Evap vent ctrl
• Front ho2s in hi
• Front ho2s in lo
• 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
• Fuel injectors
• Fuel pump relay ctrl
• G114 (left rear of engine)
• G117 (lower right rear of engine block)
• Heated oxygen sensor bank 1 sensor 1 (rear of exhaust manifold)
• Heated oxygen sensor bank 1 sensor 2 (early production) (front of catalytic converter)
• Heated oxygen sensor bank 1 sensor 3 (rear of catalytic converter)
• Heated oxygen sensor bank 2 sensor 1 (front exhaust manifold)
• Hot in run, bulb test or start
• Iat sens in
• Ignition ctrl feedback
• Inj fuse 10a
• Knock sens in
• Knock sensor (center of eng, below intake manifold)
• Late production
• Maf sens in
• Mil indic ctrl
• Nca
• Oil level sw in
• Oil press sens in
• Pcm ground
• Pnk
• Pnk d
• Power (ignition 1)
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Pre-cat ho2s in hi
• Pre-cat ho2s in lo
• Pressure sensor signal
• Rear h02s in lo
• Rear ho2s in hi
• Ref lo in
• S110
• S111
• S125
• S127
• Tach signal out
• Tan
• Tan a
• Under- hood fuse block
• Used) (or not
• Vss in hi
• Vss in lo
• Vss out (4000 ppm)