ENGINE PERFORMANCE – Cadillac Eldorado ECS 2002 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.6L

4.6L VIN 9, Engine Performance Wiring Diagrams (1 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (1 of 4) for Cadillac Eldorado ECS 2002:

• (right rear of engine) g102
• (under center rear of vehicle)
• A/t input spd sens high
• A/t input spd sens low
• Air inj cntrl
• Air sol control
• Anti lock brakes system
• Battery
• Chasis pitch sig
• Ckp sens a sig
• Ckp sens b sig
• Class 2 data link
• Cmp sens 12v ref
• Cmp sens sig
• Computer data lines system
• Cooling fans system
• Crank fuse 10a
• Cruise control system
• Cruise inhibit out
• Delivered torque output
• Egr ign feed
• Electronic suspension system
• Evap vent valve cntrl
• Evaporative emissions canister vent solenoid
• Extended trvl brake sw
• Fan low spd cntrl
• Fuel inj 1 cntrl
• Fuel inj 2 cntrl
• Fuel inj 3 cntrl
• Fuel inj 4 cntrl
• Fuel inj 5 cntrl
• Fuel inj 6 cntrl
• Fuel inj 7 cntrl
• Fuel inj 8 cntrl
• Fuel injectors
• Fuel pump rly cntrl
• Fuel tank press sig
• Ho2s high (1,1)
• Ho2s high (1,2)
• Ho2s high (2,1)
• Ho2s htr high (1,1)
• Ho2s htr low (1,1)
• Ho2s low (1,1)
• Ho2s low (1,2)
• Ho2s low (2,1)
• Hos2 htr low (2,1)
• Hot at all times
• Hot in off & run
• Hot in run & start
• Hot in start
• Iac coil a high
• Iac coil a low
• Iac coil b high
• Iac coil b low
• Iat sens sig
• Ic 7 cntrl
• Ign 0 fuse 10a
• Ign 1 fuse 10a
• Ignition
• Inj fuse 10a
• Maf sens sig
• Map sens sig
• Mil cntrl
• Oxy sen 1 fuse 10a
• Oxy sen 2 fuse 10a
• Pcm (bat) fuse 10a
• Pcm (ign) fuse 10a
• Pcm ground
• Pnk
• Pnk a
• Pnk s114
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Press cntrl sol high
• Press cntrl sol low
• Red
• Requested torque input
• S115
• S125
• S128
• S308
• Tan
• Tp sens sig
• Trs a input
• Trs b input
• Trs c input
• Trs p input
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (near right eng mount, on transaxle)
• Vss high
• Vss low
• Vss output
• Ic 1 cntrl

4.6L VIN 9, Engine Performance Wiring Diagrams (2 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (2 of 4) for Cadillac Eldorado ECS 2002:

• Air fuse 50a
• Automatic transaxle
• Ecs fuse 10a
• Evaporative emissions canister purge solenoid (top rear of eng, on rear cam cover)
• Exhaust gas recirc- ulation (egr) valve (top right rear of eng)
• Fuel tank pressure sensor (on fuel tank)
• G102 (right rear of engine)
• G104 (left side of engine compt)
• Ground
• Heated oxygen sensor (ho2s) (bank 1, sensor 1) (on right exhaust manifold)
• Heated oxygen sensor (ho2s) (bank 1, sensor 2) (rear of catalytic converter)
• Heated oxygen sensor (ho2s) (bank 2, sensor 1) (on left exhaust manifold)
• Hot at all times
• Hot in run & start
• Iat sens
• Idle air control (iacv) valve (on throttle body assembly)
• Ign
• Input speed sensor
• Maf sens
• Manifold absolute pressure (map) sensor (on throttle body assembly)
• Mass airflow (maf) sensor (on air inlet of throttle body)
• Nca
• Pnk
• Pnk d
• Pnk/
• Red
• Red b
• Right under- hood fuse block
• S125
• S126
• Secondary air injection pump (under left front fender)
• Secondary air injection pump relay (forward of left front strut tower)
• Secondary air injection solenoid (under intake manifold right shield)
• Tan
• Tan a
• Throttle position (tp) sensor (on throttle body assembly)
• Under- hood fuse block

4.6L VIN 9, Engine Performance Wiring Diagrams (3 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (3 of 4) for Cadillac Eldorado ECS 2002:

• (below right rear seat)
• (right rear of engine)
• Automatic transaxle internal mode switch (in automatic transaxle)
• 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 control system
• Dis fuse 20a
• Electronic suspension system
• Engine oil pressure switch (on oil filter housing)
• Fuel pump (top of fuel tank)
• Fuel pump fuse 20a
• Fuel pump relay (in under- hood fuse block)
• G102
• G102 (right rear of engine)
• G103 (left front corner of engine compt)
• G401
• Hot in run & start
• Ign
• Ignition coil bank 1
• Ignition coil bank 2
• Ignition control module bank 1
• Ignition control module bank 2
• Instrument panel cluster
• Nca
• Pnk
• Red
• S123 (engine harn, 4 cm from pcm breakout)
• S125
• S221 (body harn, right side of dash)
• S402
• Service engine soon ind
• Spark plugs
• Tach input
• Underhood fuse block (left side of engine compt)
• Vss input

4.6L VIN 9, Engine Performance Wiring Diagrams (4 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN 9, Engine Performance Wiring Diagrams (4 of 4) for Cadillac Eldorado ECS 2002:

• 1-2 shift sol
• 1-2 shift sol vlv cntrl
• 2-3 shift sol
• 2-3 shift sol vlv cntrl
• 5v ref
• A/c comp cntrl
• A/c system
• Abs/tcc switch
• Automatic transaxle
• Automatic transaxle fluid temper- ature sensor
• Automatic transmission
• Ckp sens 12v ref
• Ckp sens a low ref
• Ckp sens low ref
• Cmp sens low ref
• Cooling fans system
• Cruise control system
• Cruise engaged input
• Ect sens low ref
• Ect sens sig
• Egr pintle pos low ref
• Egr position
• Egr valve grd
• Engine coolant temperature (ect) sensor (right rear of eng, below egr valve)
• Engine oil level switch (in eng oil pan)
• Evap purge sol cntrl
• Fan high spd cntrl
• Fluid pressure manual valve position switch
• Fuel tank press low ref
• G102 (right rear of engine)
• Generator field duty sig
• Generator turn on sig
• Ho2s htr low (1,2)
• Hot in run & start
• Iat low ref
• Ic 2 cntrl
• Ic 3 cntrl
• Ic 4 cntrl
• Ic 5 cntrl
• Ic 6 cntrl
• Ic 8 cntrl
• Knock sens low ref
• Knock sens sig
• Knock sensor (ks) (on center of engine, below intake manifold)
• Low ref
• Map sens low ref
• Nca
• Oil level sw input
• Oil press sw input
• Pcm ground
• Pnk
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Pressure control solenoid
• Rear fuse block (behind left side of rear seat back)
• Red
• Ryl ign 1 fuse 10a
• S113
• S125
• S318
• Starter rly cntrl
• Starting/ charging system
• Starting/charging system
• Tach output
• Tan
• Tcc brake switch input
• Tcc pwm sol cntrl
• Tft sensor low ref
• Tft sensor sig
• Torque converter clutch solenoid valve
• Tp sens low ref
• Trans range a input
• Trans range c input

4.6L VIN Y, Engine Performance Wiring Diagrams (1 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (1 of 4) for Cadillac Eldorado ECS 2002:

• (right rear of engine) g102
• (under center rear of vehicle)
• A/t input spd sens high
• A/t input spd sens low
• Air inj cntrl
• Air sol control
• Anti lock brakes system
• Battery
• Chasis pitch sig
• Ckp sens a sig
• Ckp sens b sig
• Class 2 data link
• Cmp sens 12v ref
• Cmp sens sig
• Computer data lines system
• Cooling fans system
• Crank fuse 10a
• Cruise control system
• Cruise inhibit out
• Delivered torque output
• Egr ign feed
• Electronic suspension system
• Evap vent valve cntrl
• Evaporative emissions canister vent solenoid
• Extended trvl brake sw
• Fan low spd cntrl
• Fuel inj 1 cntrl
• Fuel inj 2 cntrl
• Fuel inj 3 cntrl
• Fuel inj 4 cntrl
• Fuel inj 5 cntrl
• Fuel inj 6 cntrl
• Fuel inj 7 cntrl
• Fuel inj 8 cntrl
• Fuel injectors
• Fuel pump rly cntrl
• Fuel tank press sig
• Ho2s high (1,1)
• Ho2s high (1,2)
• Ho2s high (2,1)
• Ho2s htr high (1,1)
• Ho2s htr low (1,1)
• Ho2s low (1,1)
• Ho2s low (1,2)
• Ho2s low (2,1)
• Hos2 htr low (2,1)
• Hot at all times
• Hot in off & run
• Hot in run & start
• Hot in start
• Iac coil a high
• Iac coil a low
• Iac coil b high
• Iac coil b low
• Iat sens sig
• Ic 7 cntrl
• Ign 0 fuse 10a
• Ign 1 fuse 10a
• Ignition
• Inj fuse 10a
• Maf sens sig
• Map sens sig
• Mil cntrl
• Oxy sen 1 fuse 10a
• Oxy sen 2 fuse 10a
• Pcm (bat) fuse 10a
• Pcm (ign) fuse 10a
• Pcm ground
• Pnk
• Pnk a
• Pnk s114
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Press cntrl sol high
• Press cntrl sol low
• Red
• Requested torque input
• S115
• S125
• S128
• S308
• Tan
• Tp sens sig
• Trs a input
• Trs b input
• Trs c input
• Trs p input
• Underhood fuse block (left side of engine compt)
• Vehicle speed sensor (near right eng mount, on transaxle)
• Vss high
• Vss low
• Vss output
• Ic 1 cntrl

4.6L VIN Y, Engine Performance Wiring Diagrams (2 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (2 of 4) for Cadillac Eldorado ECS 2002:

• Air fuse 50a
• Automatic transaxle
• Ecs fuse 10a
• Evaporative emissions canister purge solenoid (top rear of eng, on rear cam cover)
• Exhaust gas recirc- ulation (egr) valve (top right rear of eng)
• Fuel tank pressure sensor (on fuel tank)
• G102 (right rear of engine)
• G104 (left side of engine compt)
• Ground
• Heated oxygen sensor (ho2s) (bank 1, sensor 1) (on right exhaust manifold)
• Heated oxygen sensor (ho2s) (bank 1, sensor 2) (rear of catalytic converter)
• Heated oxygen sensor (ho2s) (bank 2, sensor 1) (on left exhaust manifold)
• Hot at all times
• Hot in run & start
• Iat sens
• Idle air control (iacv) valve (on throttle body assembly)
• Ign
• Input speed sensor
• Maf sens
• Manifold absolute pressure (map) sensor (on throttle body assembly)
• Mass airflow (maf) sensor (on air inlet of throttle body)
• Nca
• Pnk
• Pnk d
• Pnk/
• Red
• Red b
• Right under- hood fuse block
• S125
• S126
• Secondary air injection pump (under left front fender)
• Secondary air injection pump relay (forward of left front strut tower)
• Secondary air injection solenoid (under intake manifold right shield)
• Tan
• Tan a
• Throttle position (tp) sensor (on throttle body assembly)
• Under- hood fuse block

4.6L VIN Y, Engine Performance Wiring Diagrams (3 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (3 of 4) for Cadillac Eldorado ECS 2002:

• (below right rear seat)
• (right rear of engine)
• Automatic transaxle internal mode switch (in automatic transaxle)
• 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 control system
• Dis fuse 20a
• Electronic suspension system
• Engine oil pressure switch (on oil filter housing)
• Fuel pump (top of fuel tank)
• Fuel pump fuse 20a
• Fuel pump relay (in under- hood fuse block)
• G102
• G102 (right rear of engine)
• G103 (left front corner of engine compt)
• G401
• Hot in run & start
• Ign
• Ignition coil bank 1
• Ignition coil bank 2
• Ignition control module bank 1
• Ignition control module bank 2
• Instrument panel cluster
• Nca
• Pnk
• Red
• S123 (engine harn, 4 cm from pcm breakout)
• S125
• S221 (body harn, right side of dash)
• S402
• Service engine soon ind
• Spark plugs
• Tach input
• Underhood fuse block (left side of engine compt)
• Vss input

4.6L VIN Y, Engine Performance Wiring Diagrams (4 of 4) for Cadillac Eldorado ECS 2002

List of elements for 4.6L VIN Y, Engine Performance Wiring Diagrams (4 of 4) for Cadillac Eldorado ECS 2002:

• 1-2 shift sol
• 1-2 shift sol vlv cntrl
• 2-3 shift sol
• 2-3 shift sol vlv cntrl
• 5v ref
• A/c comp cntrl
• A/c system
• Abs/tcc switch
• Automatic transaxle
• Automatic transaxle fluid temper- ature sensor
• Automatic transmission
• Ckp sens 12v ref
• Ckp sens a low ref
• Ckp sens low ref
• Cmp sens low ref
• Cooling fans system
• Cruise control system
• Cruise engaged input
• Ect sens low ref
• Ect sens sig
• Egr pintle pos low ref
• Egr position
• Egr valve grd
• Engine coolant temperature (ect) sensor (right rear of eng, below egr valve)
• Engine oil level switch (in eng oil pan)
• Evap purge sol cntrl
• Fan high spd cntrl
• Fluid pressure manual valve position switch
• Fuel tank press low ref
• G102 (right rear of engine)
• Generator field duty sig
• Generator turn on sig
• Ho2s htr low (1,2)
• Hot in run & start
• Iat low ref
• Ic 2 cntrl
• Ic 3 cntrl
• Ic 4 cntrl
• Ic 5 cntrl
• Ic 6 cntrl
• Ic 8 cntrl
• Knock sens low ref
• Knock sens sig
• Knock sensor (ks) (on center of engine, below intake manifold)
• Low ref
• Map sens low ref
• Nca
• Oil level sw input
• Oil press sw input
• Pcm ground
• Pnk
• Powertrain control module (left front of eng compt, under air cleaner housing)
• Pressure control solenoid
• Rear fuse block (behind left side of rear seat back)
• Red
• Ryl ign 1 fuse 10a
• S113
• S125
• S318
• Starter rly cntrl
• Starting/ charging system
• Starting/charging system
• Tach output
• Tan
• Tcc brake switch input
• Tcc pwm sol cntrl
• Tft sensor low ref
• Tft sensor sig
• Torque converter clutch solenoid valve
• Tp sens low ref
• Trans range a input
• Trans range c input