ENGINE PERFORMANCE – Cadillac Seville STS 1994 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.6L

4.6L (VIN 9), Engine Performance Wiring Diagrams (1 of 3) for Cadillac Seville STS 1994

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (1 of 3) for Cadillac Seville STS 1994:

• (front of coolant reservoir)
• (lower front of engine above above oil filter)
• (lower right rear of engine in p/s line)
• 1a1
• 1a10
• 1a11
• 1a12
• 1a13
• 1a14
• 1a15
• 1a16
• 1a2
• 1a3
• 1a4
• 1a5
• 1a6
• 1a7
• 1a8
• 1a9
• 1b1
• 1b10
• 1b11
• 1b12
• 1b13
• 1b14
• 1b15
• 1b16
• 1b2
• 1b3
• 1b4
• 1b5
• 1b6
• 1b7
• 1b8
• 1b9
• Automatic transaxle
• Coolant level sensor in
• Coolant level switch
• Coolant temp sensor in
• Cruise vacuum valve
• Cruise vent valve
• D4 switch
• Egr valve control
• Engine compartment fuse block
• Engine compartment micro relay center
• Engine coolant temperature sensor (top left side of engine)
• Fuel pump
• Fuel pump feedback
• Fuel pump relay a
• Fuel pump relay control
• Fuel tank unit
• Fuse a1 20a
• Fuse a5 10a
• Fuse a7 10a
• Fuse d1 10a
• G109 (right side upper radiator support)
• G200 (upper left kick- panel)
• G400 (left side of x brace behind rear seat)
• Hot in run
• Hot in run, bulb test or start
• Inj
• Inj 1 control
• Inj 2 control
• Inj 3 control
• Inj 4 control
• Inj 5 control
• Inj 6 control
• Inj 7 control
• Inj 8 control
• Instrument cluster
• Knock sensor (lower right rear of engine under exhaust manifold)
• Knock sensor in
• Map sensor in
• Oil pressure switch
• Overspeed alert module (w/ ud4 only)
• P3 switch
• P4 switch
• Pnk
• Power steering pressure switch
• Powertrain control module (right side of i/p above kick panel)
• Pwr steering press switch in
• Red
• Rev switch
• Rss module
• Switch
• Tps in
• Transaxle input speed sensor
• Transaxle press switch x in
• Transaxle press switch y in
• Transaxle press switch z in
• Transaxle pressure switch
• Transaxle speed sens in (hi)
• Transaxle speed sens in (lo)
• Transaxle temp sensor in
• Transaxle temperature sensor
• Vehicle speed sensor (lower left rear of engine on transaxle)
• Vss in (hi)
• Vss in (lo)
• Vss out to instrument clstr
• Vss out to rss module
• Vss output
• W/ ud4 only

4.6L (VIN 9), Engine Performance Wiring Diagrams (2 of 3) for Cadillac Seville STS 1994

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (2 of 3) for Cadillac Seville STS 1994:

• (left rear of engine compt
• (lower right
• (top left side of engine
• (top lh side of engine
• 2c1
• 2c10
• 2c11
• 2c12
• 2c13
• 2c14
• 2c15
• 2c16
• 2c2
• 2c3
• 2c4
• 2c5
• 2c6
• 2c7
• 2c8
• 2c9
• 2d1
• 2d10
• 2d11
• 2d12
• 2d13
• 2d14
• 2d15
• 2d16
• 2d2
• 2d3
• 2d4
• 2d5
• 2d6
• 2d7
• 2d8
• 2d9
• Battery feed
• Block)
• Brake booster vac sensor in
• Brake booster vacuum sensor
• Computer data lines system
• Cranking fuel enable
• Cruise brake switch in
• Cruise control enable in
• Cruise control res/accel in
• Cruise control servo (top left rear of engine)
• Cruise control set/coast in
• Cruise control switch
• Data line input/output
• Desired torque in
• Egr feedback in
• Elec brake & traction ctrl module
• Engine compartment fuse block
• Exhaust gas recirculation valve
• Extended travel brake switch in
• Fast idle request in
• Fuse a9 10a
• Fuse b13 10a
• Fuse d1 10a
• Fuse d3 10a
• Fuse d5 10a
• G117
• G117 (lower right rear of engine, near engine mount)
• Generator
• Generator control/feedback
• Ground
• Heated windshield control module (w/ c50 only)
• Hot at all times
• Hot in run
• Hot in run, bulb test, or start
• Iat sensor in
• Ignition 1
• Ignition 3
• Intake air temp sensor (top lh side of engine under intake cover)
• Manifold absolute press sens
• Multi- function lever (steering column)
• Nca
• Near engine
• Off
• Oil level switch in
• On brake master cylinder)
• On throttle body)
• Park/neutral in
• Passkey decoder module
• Pnk
• Powertrain control module (right side of i/p above kick panel)
• Rear of engine,
• Rearward of cruise servo)
• Red
• Resume/ accel
• Sensor return
• Servo position sensor
• Set/ coast
• Stop/btsi/ cruise brake switch (left side of i/p above brake pedal)
• Tan
• Tcc brake switch (lower left i/p above brake pedal)
• Tcc brake switch in
• Throttle position sensor
• Throttle position switch in
• Transaxle press ctrl enable hi
• Transaxle press ctrl enable lo
• Under intake manifold cover)
• Vacuum valve control
• Vent valve control

4.6L (VIN 9), Engine Performance Wiring Diagrams (3 of 3) for Cadillac Seville STS 1994

List of elements for 4.6L (VIN 9), Engine Performance Wiring Diagrams (3 of 3) for Cadillac Seville STS 1994:

• (analog cluster only)
• 24 x ref hi out
• 24x ref hi in
• 3e1
• 3e10
• 3e11
• 3e12
• 3e13
• 3e14
• 3e15
• 3e16
• 3e2
• 3e3
• 3e4
• 3e5
• 3e6
• 3e7
• 3e8
• 3e9
• 3f1
• 3f10
• 3f11
• 3f12
• 3f13
• 3f14
• 3f15
• 3f16
• 3f2
• 3f3
• 3f4
• 3f5
• 3f6
• 3f7
• 3f8
• 3f9
• 4x ref hi in
• 4x ref hi out
• 5v ref out
• A/c comp clutch relay ctrl
• Automatic transaxle
• Bypass spark in
• Bypass spark out
• Cam hi in
• Cam hi out
• Cam- shaft in
• Camshaft position sensor (rt side of engine near rear valve cover)
• Cooling fan 1 relay
• Cooling fan 2 relay
• Cooling fan hi speed control
• Cooling fan lo speed control
• Crank in
• Crank position sensor a (center frt of engine below exhaust manifold)
• Crank position sensor b (center frt of engine below exhaust manifold)
• Cruise servo pos sensor (hi) in
• Cruise servo pos sensor (lo) in
• Delivered torque out
• Electronic brake &
• Engine compartment fuse block
• Est bypass
• Est ign control/feedback
• Evap emiss sol control
• Evaporative emission control solenoid (top left rear of engine on valve cover)
• Front heated oxygen sensor (lower left frt of engine in exhaust manifold)
• Front hego sensor (hi) in
• Front hego sensor (lo) in
• Fuse a13 20a
• Fuse d1 10a
• Fuse d3 10a
• Ground
• Heater - a/c module
• Hot in run
• Hot in run, bulb test or start
• Idle speed control motor (top left side of engine near cruise ctrl servo)
• Idle speed mtr
• Ignition control module (top right rear of engine)
• Ignition in
• Instrument cluster
• Isc motor control
• Lift/dive sig to rss module out
• Mil indicator control
• Nca
• Oil level switch (lower right frt of engine on oil pan)
• Passkey decoder module
• Pnk
• Powertrain control module (right side of i/p above kick panel)
• Rear heated oxygen sensor (center rear of engine in exhaust manifold)
• Rear hego sensor (hi) in
• Rear hego sensor (lo) in
• Red
• Ref lo in
• Ref lo out
• Rss module
• Starter inhibit out
• Switch
• Tachometer out
• Tan
• Tan c
• Tcc sol control
• To spark plugs
• Torque converter clutch solenoid
• Traction control module
• Transaxle pressure control solenoid
• Transaxle range switch (left side of engine on transaxle)
• Transaxle shift a solenoid
• Transaxle shift b solenoid
• Transaxle shift sol a control
• Transaxle shift sol b control

4.6L (VIN Y), Engine Performance Wiring Diagrams (1 of 3) for Cadillac Seville STS 1994

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (1 of 3) for Cadillac Seville STS 1994:

• (front of coolant reservoir)
• (lower front of engine above above oil filter)
• (lower right rear of engine in p/s line)
• 1a1
• 1a10
• 1a11
• 1a12
• 1a13
• 1a14
• 1a15
• 1a16
• 1a2
• 1a3
• 1a4
• 1a5
• 1a6
• 1a7
• 1a8
• 1a9
• 1b1
• 1b10
• 1b11
• 1b12
• 1b13
• 1b14
• 1b15
• 1b16
• 1b2
• 1b3
• 1b4
• 1b5
• 1b6
• 1b7
• 1b8
• 1b9
• Automatic transaxle
• Coolant level sensor in
• Coolant level switch
• Coolant temp sensor in
• Cruise vacuum valve
• Cruise vent valve
• D4 switch
• Egr valve control
• Engine compartment fuse block
• Engine compartment micro relay center
• Engine coolant temperature sensor (top left side of engine)
• Fuel pump
• Fuel pump feedback
• Fuel pump relay a
• Fuel pump relay control
• Fuel tank unit
• Fuse a1 20a
• Fuse a5 10a
• Fuse a7 10a
• Fuse d1 10a
• G109 (right side upper radiator support)
• G200 (upper left kick- panel)
• G400 (left side of x brace behind rear seat)
• Hot in run
• Hot in run, bulb test or start
• Inj
• Inj 1 control
• Inj 2 control
• Inj 3 control
• Inj 4 control
• Inj 5 control
• Inj 6 control
• Inj 7 control
• Inj 8 control
• Instrument cluster
• Knock sensor (lower right rear of engine under exhaust manifold)
• Knock sensor in
• Map sensor in
• Oil pressure switch
• Overspeed alert module (w/ ud4 only)
• P3 switch
• P4 switch
• Pnk
• Power steering pressure switch
• Powertrain control module (right side of i/p above kick panel)
• Pwr steering press switch in
• Red
• Rev switch
• Rss module
• Switch
• Tps in
• Transaxle input speed sensor
• Transaxle press switch x in
• Transaxle press switch y in
• Transaxle press switch z in
• Transaxle pressure switch
• Transaxle speed sens in (hi)
• Transaxle speed sens in (lo)
• Transaxle temp sensor in
• Transaxle temperature sensor
• Vehicle speed sensor (lower left rear of engine on transaxle)
• Vss in (hi)
• Vss in (lo)
• Vss out to instrument clstr
• Vss out to rss module
• Vss output
• W/ ud4 only

4.6L (VIN Y), Engine Performance Wiring Diagrams (2 of 3) for Cadillac Seville STS 1994

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (2 of 3) for Cadillac Seville STS 1994:

• (left rear of engine compt
• (lower right
• (top left side of engine
• (top lh side of engine
• 2c1
• 2c10
• 2c11
• 2c12
• 2c13
• 2c14
• 2c15
• 2c16
• 2c2
• 2c3
• 2c4
• 2c5
• 2c6
• 2c7
• 2c8
• 2c9
• 2d1
• 2d10
• 2d11
• 2d12
• 2d13
• 2d14
• 2d15
• 2d16
• 2d2
• 2d3
• 2d4
• 2d5
• 2d6
• 2d7
• 2d8
• 2d9
• Battery feed
• Block)
• Brake booster vac sensor in
• Brake booster vacuum sensor
• Computer data lines system
• Cranking fuel enable
• Cruise brake switch in
• Cruise control enable in
• Cruise control res/accel in
• Cruise control servo (top left rear of engine)
• Cruise control set/coast in
• Cruise control switch
• Data line input/output
• Desired torque in
• Egr feedback in
• Elec brake & traction ctrl module
• Engine compartment fuse block
• Exhaust gas recirculation valve
• Extended travel brake switch in
• Fast idle request in
• Fuse a9 10a
• Fuse b13 10a
• Fuse d1 10a
• Fuse d3 10a
• Fuse d5 10a
• G117
• G117 (lower right rear of engine, near engine mount)
• Generator
• Generator control/feedback
• Ground
• Heated windshield control module (w/ c50 only)
• Hot at all times
• Hot in run
• Hot in run, bulb test, or start
• Iat sensor in
• Ignition 1
• Ignition 3
• Intake air temp sensor (top lh side of engine under intake cover)
• Manifold absolute press sens
• Multi- function lever (steering column)
• Nca
• Near engine
• Off
• Oil level switch in
• On brake master cylinder)
• On throttle body)
• Park/neutral in
• Passkey decoder module
• Pnk
• Powertrain control module (right side of i/p above kick panel)
• Rear of engine,
• Rearward of cruise servo)
• Red
• Resume/ accel
• Sensor return
• Servo position sensor
• Set/ coast
• Stop/btsi/ cruise brake switch (left side of i/p above brake pedal)
• Tan
• Tcc brake switch (lower left i/p above brake pedal)
• Tcc brake switch in
• Throttle position sensor
• Throttle position switch in
• Transaxle press ctrl enable hi
• Transaxle press ctrl enable lo
• Under intake manifold cover)
• Vacuum valve control
• Vent valve control

4.6L (VIN Y), Engine Performance Wiring Diagrams (3 of 3) for Cadillac Seville STS 1994

List of elements for 4.6L (VIN Y), Engine Performance Wiring Diagrams (3 of 3) for Cadillac Seville STS 1994:

• (analog cluster only)
• 24 x ref hi out
• 24x ref hi in
• 3e1
• 3e10
• 3e11
• 3e12
• 3e13
• 3e14
• 3e15
• 3e16
• 3e2
• 3e3
• 3e4
• 3e5
• 3e6
• 3e7
• 3e8
• 3e9
• 3f1
• 3f10
• 3f11
• 3f12
• 3f13
• 3f14
• 3f15
• 3f16
• 3f2
• 3f3
• 3f4
• 3f5
• 3f6
• 3f7
• 3f8
• 3f9
• 4x ref hi in
• 4x ref hi out
• 5v ref out
• A/c comp clutch relay ctrl
• Automatic transaxle
• Bypass spark in
• Bypass spark out
• Cam hi in
• Cam hi out
• Cam- shaft in
• Camshaft position sensor (rt side of engine near rear valve cover)
• Cooling fan 1 relay
• Cooling fan 2 relay
• Cooling fan hi speed control
• Cooling fan lo speed control
• Crank in
• Crank position sensor a (center frt of engine below exhaust manifold)
• Crank position sensor b (center frt of engine below exhaust manifold)
• Cruise servo pos sensor (hi) in
• Cruise servo pos sensor (lo) in
• Delivered torque out
• Electronic brake &
• Engine compartment fuse block
• Est bypass
• Est ign control/feedback
• Evap emiss sol control
• Evaporative emission control solenoid (top left rear of engine on valve cover)
• Front heated oxygen sensor (lower left frt of engine in exhaust manifold)
• Front hego sensor (hi) in
• Front hego sensor (lo) in
• Fuse a13 20a
• Fuse d1 10a
• Fuse d3 10a
• Ground
• Heater - a/c module
• Hot in run
• Hot in run, bulb test or start
• Idle speed control motor (top left side of engine near cruise ctrl servo)
• Idle speed mtr
• Ignition control module (top right rear of engine)
• Ignition in
• Instrument cluster
• Isc motor control
• Lift/dive sig to rss module out
• Mil indicator control
• Nca
• Oil level switch (lower right frt of engine on oil pan)
• Passkey decoder module
• Pnk
• Powertrain control module (right side of i/p above kick panel)
• Rear heated oxygen sensor (center rear of engine in exhaust manifold)
• Rear hego sensor (hi) in
• Rear hego sensor (lo) in
• Red
• Ref lo in
• Ref lo out
• Rss module
• Starter inhibit out
• Switch
• Tachometer out
• Tan
• Tan c
• Tcc sol control
• To spark plugs
• Torque converter clutch solenoid
• Traction control module
• Transaxle pressure control solenoid
• Transaxle range switch (left side of engine on transaxle)
• Transaxle shift a solenoid
• Transaxle shift b solenoid
• Transaxle shift sol a control
• Transaxle shift sol b control