ENGINE PERFORMANCE – Cadillac Seville SLS 1998 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.6L

4.6L (VIN 9), Engine Performance Wiring Diagrams (1 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (1 of 4) for Cadillac Seville SLS 1998:

• 5v ref out
• A/c comp clutch ctrl
• A/c pressure sensor (lower left front of engine)
• Abs switch
• Air conditioning system
• Automatic transaxle
• Class ii 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 temperature sensor (ect) (right rear corner of engine)
• Evaporative emission canister purge solenoid valve (rear of right cam cover)
• Exhaust gas recirc- ulation valve (top right rear of engine)
• Fuel pump feedback
• Fuel tank pressure sensor (top of fuel tank)
• G117 (lower right rear of engine)
• G117 (right rear of engine)
• Gen 'f' term feedback
• Iac sol coil ctrl
• Iat sens return
• Idle air control (iacv) valve (throttle body)
• Intake air temperature (iat) sensor (left front of engine compt)
• Lift/dive sig out
• Map 5v ref out
• Map sens in
• Map sensor return
• Mass air flow sensor (on 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 engine compartment)
• Pwr steer pres sw in
• Red
• Ref voltage
• Sensor ground
• Sensor signal
• Shift 'a' sol ctrl
• Shift 'b' sol ctrl
• Starting/ charging system
• Tan
• Tan b
• Tcc brake sw in
• Tcc sol ctrl
• Throttle position sensor (on throttle body)
• 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
• Turbine speed sensor

4.6L (VIN 9), Engine Performance Wiring Diagrams (2 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (2 of 4) for Cadillac Seville SLS 1998:

• 1-2 shift sol
• 2-3 shift sol
• Abs/tcc switch (top of brake pedal)
• Acc
• Automatic transaxle
• Automatic transmission
• Cruise control system
• E10
• Fluid pressure manual valve position switch
• Hot at all times
• Hot in run and start
• Ign 1 fuse 10a
• Ignition switch
• Lock
• Manifold absolute pressure sensor (rear of engine)
• Pcm batt fuse 10a
• Pcm ign fuse 10a
• Pnk
• Pressure control solenoid
• Rear junction block
• Red
• Run
• S205
• Start
• Tan
• Torque converter clutch solenoid
• Trans- axle temper- ature sensor
• Underhood junction block

4.6L (VIN 9), Engine Performance Wiring Diagrams (3 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (3 of 4) for Cadillac Seville SLS 1998:

• (not used)
• (right rear of engine)
• (right rear of engine) g117
• (top right rear of engine)
• Camshaft position (cmp) sensor (front of right cylinder head)
• Crankshaft position (ckp) sensor a (left side of engine block)
• Crankshaft position (ckp) sensor b (left side of engine block)
• D10
• Dis fuse 20a
• Engine oil pressure switch (left side of engine)
• F/pmp fuse 20a
• Fuel pump relay
• Fuel tank unit (top of fuel tank)
• G117
• G312 (behind right side of rear seat)
• G405 (right rear of trunk)
• Hot at all times
• Hot in run and start
• Ign
• Ignition amplifier and switching module
• Ignition control module
• Instrument cluster
• Oxy sen a fuse 20a
• Oxy sen b fuse 20a
• Park/ neutral position switch (top of transaxle)
• Pnk
• Power steering pressure switch (on power steering high pressure line)
• Rear junction block
• Service engine soon indicator
• Spark plugs
• Tach signal in
• Tan
• Under- hood junction block
• Underhood junction block
• Vehicle speed sensor (on trans- axle)
• Vent sol fuse 10a
• Vss in

4.6L (VIN 9), Engine Performance Wiring Diagrams (4 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (4 of 4) for Cadillac Seville SLS 1998:

• (right rear of engine)
• 24x ref hi in
• 4x ref hi in
• A8 pnk
• Anti-lock brakes system
• B9 pnk
• 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
• Ect sens in
• Egr valve feedback
• Egr valve sol ctrl
• Electronic suspension system
• Engine oil level switch (left front of engine)
• Evap ctrl sol out
• Evap purge vent ctrl
• Evaporative emissions canister purge vent valve (center rear of vehicle)
• Front heated oxygen sensor (on exhaust manifold)
• 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
• G110 (left front of engine)
• G117
• G117 (lower right rear of engine)
• Hot in run and start
• Iat sens in
• Ignition ctrl feedback
• Injr 1 fuse 10a
• Injr 2 fuse 10a
• Knock sens in
• Knock sensor (center top of engine)
• Maf sens in
• Mil indic ctrl
• Nca
• Oil level sw in
• Oil press sens in
• Pcm ground
• Pnk
• Post-converter heated oxygen sensor (rear of cata- lytic converter)
• Power (ignition 1)
• Powertrain control module (left front of engine compartment)
• Pre-cat ho2s in hi
• Pre-cat ho2s in lo
• Pre-converter heated oxygen sensor (early production) (front of cata- lytic converter)
• Pressure sens
• Rear h02s in lo
• Rear heated oxygen sensor (on exhaust manifold)
• Rear ho2s in hi
• Ref lo in
• S110
• S111
• S201
• Tach signal out
• Tan
• Under- hood junction block
• Vss in hi
• Vss in lo
• Vss out (4000 ppm)

4.6L (VIN Y), Engine Performance Wiring Diagrams (1 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (1 of 4) for Cadillac Seville SLS 1998:

• 5v ref out
• A/c comp clutch ctrl
• A/c pressure sensor (lower left front of engine)
• Abs switch
• Air conditioning system
• Automatic transaxle
• Class ii 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 temperature sensor (ect) (right rear corner of engine)
• Evaporative emission canister purge solenoid valve (rear of right cam cover)
• Exhaust gas recirc- ulation valve (top right rear of engine)
• Fuel pump feedback
• Fuel tank pressure sensor (top of fuel tank)
• G117 (lower right rear of engine)
• G117 (right rear of engine)
• Gen 'f' term feedback
• Iac sol coil ctrl
• Iat sens return
• Idle air control (iacv) valve (throttle body)
• Intake air temperature (iat) sensor (left front of engine compt)
• Lift/dive sig out
• Map 5v ref out
• Map sens in
• Map sensor return
• Mass air flow sensor (on 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 engine compartment)
• Pwr steer pres sw in
• Red
• Ref voltage
• Sensor ground
• Sensor signal
• Shift 'a' sol ctrl
• Shift 'b' sol ctrl
• Starting/ charging system
• Tan
• Tan b
• Tcc brake sw in
• Tcc sol ctrl
• Throttle position sensor (on throttle body)
• 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
• Turbine speed sensor

4.6L (VIN Y), Engine Performance Wiring Diagrams (2 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (2 of 4) for Cadillac Seville SLS 1998:

• 1-2 shift sol
• 2-3 shift sol
• Abs/tcc switch (top of brake pedal)
• Acc
• Automatic transaxle
• Automatic transmission
• Cruise control system
• E10
• Fluid pressure manual valve position switch
• Hot at all times
• Hot in run and start
• Ign 1 fuse 10a
• Ignition switch
• Lock
• Manifold absolute pressure sensor (rear of engine)
• Pcm batt fuse 10a
• Pcm ign fuse 10a
• Pnk
• Pressure control solenoid
• Rear junction block
• Red
• Run
• S205
• Start
• Tan
• Torque converter clutch solenoid
• Trans- axle temper- ature sensor
• Underhood junction block

4.6L (VIN Y), Engine Performance Wiring Diagrams (3 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (3 of 4) for Cadillac Seville SLS 1998:

• (not used)
• (right rear of engine)
• (right rear of engine) g117
• (top right rear of engine)
• Camshaft position (cmp) sensor (front of right cylinder head)
• Crankshaft position (ckp) sensor a (left side of engine block)
• Crankshaft position (ckp) sensor b (left side of engine block)
• D10
• Dis fuse 20a
• Engine oil pressure switch (left side of engine)
• F/pmp fuse 20a
• Fuel pump relay
• Fuel tank unit (top of fuel tank)
• G117
• G312 (behind right side of rear seat)
• G405 (right rear of trunk)
• Hot at all times
• Hot in run and start
• Ign
• Ignition amplifier and switching module
• Ignition control module
• Instrument cluster
• Oxy sen a fuse 20a
• Oxy sen b fuse 20a
• Park/ neutral position switch (top of transaxle)
• Pnk
• Power steering pressure switch (on power steering high pressure line)
• Rear junction block
• Service engine soon indicator
• Spark plugs
• Tach signal in
• Tan
• Under- hood junction block
• Underhood junction block
• Vehicle speed sensor (on trans- axle)
• Vent sol fuse 10a
• Vss in

4.6L (VIN Y), Engine Performance Wiring Diagrams (4 of 4) for Cadillac Seville SLS 1998

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (4 of 4) for Cadillac Seville SLS 1998:

• (right rear of engine)
• 24x ref hi in
• 4x ref hi in
• A8 pnk
• Anti-lock brakes system
• B9 pnk
• 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
• Ect sens in
• Egr valve feedback
• Egr valve sol ctrl
• Electronic suspension system
• Engine oil level switch (left front of engine)
• Evap ctrl sol out
• Evap purge vent ctrl
• Evaporative emissions canister purge vent valve (center rear of vehicle)
• Front heated oxygen sensor (on exhaust manifold)
• 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
• G110 (left front of engine)
• G117
• G117 (lower right rear of engine)
• Hot in run and start
• Iat sens in
• Ignition ctrl feedback
• Injr 1 fuse 10a
• Injr 2 fuse 10a
• Knock sens in
• Knock sensor (center top of engine)
• Maf sens in
• Mil indic ctrl
• Nca
• Oil level sw in
• Oil press sens in
• Pcm ground
• Pnk
• Post-converter heated oxygen sensor (rear of cata- lytic converter)
• Power (ignition 1)
• Powertrain control module (left front of engine compartment)
• Pre-cat ho2s in hi
• Pre-cat ho2s in lo
• Pre-converter heated oxygen sensor (early production) (front of cata- lytic converter)
• Pressure sens
• Rear h02s in lo
• Rear heated oxygen sensor (on exhaust manifold)
• Rear ho2s in hi
• Ref lo in
• S110
• S111
• S201
• Tach signal out
• Tan
• Under- hood junction block
• Vss in hi
• Vss in lo
• Vss out (4000 ppm)