ENGINE PERFORMANCE – Buick Park Avenue 2005 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.8L VIN 1

3.8L VIN 1, Engine Performance Wiring Diagram (1 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN 1, Engine Performance Wiring Diagram (1 of 4) for Buick Park Avenue 2005:

• (below ig- nition control module) g101
• (not used)
• (on left side of engine, near starter) knock sensor (bank 1)
• (on right side of engine, below exhaust manifold) knock sensor (bank 2)
• 1-2 shift sol control
• 18x ref
• 18x reference
• 2-3 shift sol control
• 3x ref
• 3x reference
• A/t speed sensor high
• A/t speed sensor low
• A12
• Bank 1 ks input
• Bank 2 ks input
• Battery
• Box)
• Bypass
• C3i fuse 10a
• Ckp 18x sig
• Ckp sync sig
• Cmp input
• Cmp output
• Cmp signal
• Computer data lines system
• Cooling fans system
• Cruise control system
• Cruise disable/inhibit in
• Cruise module, hud dis- play & inst cluster
• Desired torque input
• E12
• Egr control ground
• Egr pos sensor ground
• Electronic brake control module (ebcm) (left front corner of engine compt)
• Evap purge valve cont
• Evaporative emissions (evap) canister purge solenoid (on top left side of engine)
• F12
• Fuel inj 1 control
• Fuel inj 2 control
• Fuel inj 4 control
• Fuel inj 5 control
• Fuel inj 6 control
• G100 (below ignition control module)
• Ground
• Hi speed cool fan cont
• Ho2s 1 low
• Ho2s 2 low
• Ho2s low ref
• Hot at all times
• Hot in off, run & start
• Hot in run & start
• I/p fuse block (behind glove f6
• Iac coil b high
• Iat sensor ground
• Ign
• Ign control
• Ign voltage
• Ignfd fuse 10a
• Ignition
• Ignition control
• Ignition control module (icm) (at left front of engine, under ignition coils)
• Lo speed cool fan cont
• Low ref
• Maf sensor input
• Mass air flow (maf) sensor (at rear of engine, on top of throttle body)
• Pcm fuse 10a
• Pcm ground
• Pcm/cru fuse 10a c3
• Pnk
• Pnk a
• Pnk p
• Powertrain control module (pcm) (in air cleaner housing)
• Rear fuse block (below right side of rear seat)
• Ref low
• Reference low
• S108
• Serial data (class 2)
• Signal
• Tan
• Tcc switch input
• Tcc/ cruise release switch (on brake pedal bracket)
• Torque signal
• Tp sensor ground
• Trans range sw b input
• Underhood fuse block (left) (on right front of engine compt, near battery)
• Vehicle speed sensor (vss) (in lower right rear of engine compt, on transaxle)
• Vss high
• Vss low
• Vss output

3.8L VIN 1, Engine Performance Wiring Diagram (2 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN 1, Engine Performance Wiring Diagram (2 of 4) for Buick Park Avenue 2005:

• (below ignition control module)
• (in ignition harn, 21 cm from ignition control module)
• (not used)
• 1-2 shift sol
• 2-3 shift sol
• Automatic transaxle
• Automatic transaxle fluid pressure manual valve position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor
• Automatic transmission
• Camshaft position (cmp) sensor (3.8l vin k: on right front of engine) (3.8l vin 1: on right front of engine, behind water pump pulley)
• Crankshaft position (ckp) sensor (on left front of engine, next to crankshaft balancer)
• Fuel injectors
• G101
• Hot in run & start
• Injr fuse 10a
• Pnk
• Pressure control sol
• Red
• S108
• S113
• S135
• S136 (in ignition control module harn, 20 cm from ignition control module)
• Tan
• Tcc pwm sol
• Tcc release switch
• Transmission internal mode switch
• Underhood fuse block (left) (on right front of engine compt, near battery)

3.8L VIN 1, Engine Performance Wiring Diagram (3 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN 1, Engine Performance Wiring Diagram (3 of 4) for Buick Park Avenue 2005:

• (below ignition control module) g101
• (in engine harn, 4 cm from pcm harn breakout)
• (in engine harness, 47.5 cm from pcm) s105
• (in fuel tank) fuel pump & sender assembly
• (left kick panel)
• (on right rear of wheelwell) g400
• A/c refrigerant pressure sensor (near a/c compressor, on hose assembly)
• Engine compartment,
• Engine oil pressure sensor (below power steering pump)
• Exhaust gas recirculation (egr) valve (on top right rear of engine)
• F/pmp fuse 20a
• Fuel pump
• Fuel pump relay
• Fuel tank pressure sensor (in fuel tank)
• G202
• Hot at all times
• Intake air temperature (iat) sensor (in air intake assembly)
• Manifold absolute pressure (map) sensor (on top right side of engine)
• Near battery)
• Red
• S104
• S108
• S115
• S203
• S401
• Stop lamp switch (on brake pedal bracket)
• Tan
• Throttle position (tp) sensor (on throttle body)
• Underhood fuse block (left) (on right front of

3.8L VIN 1, Engine Performance Wiring Diagram (4 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN 1, Engine Performance Wiring Diagram (4 of 4) for Buick Park Avenue 2005:

• (behind glove box) i/p fuse block
• (not used)
• 5 volt reference a
• 5 volt reference b
• A/c clu fuse 10a
• A/c comp relay control
• A/c press sensor in
• A/t fluid temp input
• A13
• Abs switch input
• Air conditioning system
• Boost solenoid control
• C11
• Crk fuse 5a
• Cruise control system
• Cruise status
• D11
• Desired torque control
• E11
• E12
• Ect sensor input
• Egr pintel position input
• Egr valve control
• Eng oil level sw input
• Eng oil press sensor in
• Engine coolant temperature (ect) sensor (under thermostat housing)
• Engine oil level switch (left side of oil pan)
• Evap solenoid control
• Evaporative emissions canister vent solenoid (below rear of vehicle, on evap canister)
• Fuel inj 3 control
• Fuel pump relay control
• Fuel tank press sensor
• G101 (below ignition control module)
• Gen term f monitor
• Gen term l control
• Heated oxygen sensor (ho2s) (bank 1 sensor 1) (on right exhaust manifold)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2) (on exhaust system, rear of catalytic converter)
• Ho2s 1 input
• Ho2s 2 input
• Ho2s low ctrl
• Hot in run & start
• Hot in start
• Iac coil a high
• Iac coil a low
• Iac coil b low
• Iat sensor input
• Idle air control (iac) valve (on throttle body)
• Ignition
• Instrument panel cluster
• Map sensor input
• Mil control
• Mil ind
• Nca
• Oxy sen fuse 10a
• Pcm fuse 10a
• Pnk
• Powertrain control module (pcm) (in air cleaner housing)
• Press sol high control
• Press sol low control
• Rear fuse block (below right side of rear seat)
• Red
• S103
• S108
• Sbm lcm fuse 10a
• Sensor ground
• Starter relay
• Starting/ charging system
• Supercharger boost control solenoid (vin 1) (on top left rear of engine, near oil fill)
• Tach input
• Tach output
• Tan
• Tcc pwm sol control
• Tp sensor input
• Trans range sw a input
• Trans range sw c input
• Trans range sw p input
• Trans tcc release sw in
• Underhood fuse block (left) (on right front of engine compt, near battery)

3.8L VIN K

3.8L VIN K, Engine Performance Wiring Diagram (1 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN K, Engine Performance Wiring Diagram (1 of 4) for Buick Park Avenue 2005:

• (below ig- nition control module) g101
• (not used)
• (on left side of engine, near starter) knock sensor (bank 1)
• (on right side of engine, below exhaust manifold) knock sensor (bank 2)
• 1-2 shift sol control
• 18x ref
• 18x reference
• 2-3 shift sol control
• 3x ref
• 3x reference
• A/t speed sensor high
• A/t speed sensor low
• A12
• Bank 1 ks input
• Bank 2 ks input
• Battery
• Box)
• Bypass
• C3i fuse 10a
• Ckp 18x sig
• Ckp sync sig
• Cmp input
• Cmp output
• Cmp signal
• Computer data lines system
• Cooling fans system
• Cruise control system
• Cruise disable/inhibit in
• Cruise module, hud dis- play & inst cluster
• Desired torque input
• E12
• Egr control ground
• Egr pos sensor ground
• Electronic brake control module (ebcm) (left front corner of engine compt)
• Evap purge valve cont
• Evaporative emissions (evap) canister purge solenoid (on top left side of engine)
• F12
• Fuel inj 1 control
• Fuel inj 2 control
• Fuel inj 4 control
• Fuel inj 5 control
• Fuel inj 6 control
• G100 (below ignition control module)
• Ground
• Hi speed cool fan cont
• Ho2s 1 low
• Ho2s 2 low
• Ho2s low ref
• Hot at all times
• Hot in off, run & start
• Hot in run & start
• I/p fuse block (behind glove f6
• Iac coil b high
• Iat sensor ground
• Ign
• Ign control
• Ign voltage
• Ignfd fuse 10a
• Ignition
• Ignition control
• Ignition control module (icm) (at left front of engine, under ignition coils)
• Lo speed cool fan cont
• Low ref
• Maf sensor input
• Mass air flow (maf) sensor (at rear of engine, on top of throttle body)
• Pcm fuse 10a
• Pcm ground
• Pcm/cru fuse 10a c3
• Pnk
• Pnk a
• Pnk p
• Powertrain control module (pcm) (in air cleaner housing)
• Rear fuse block (below right side of rear seat)
• Ref low
• Reference low
• S108
• Serial data (class 2)
• Signal
• Tan
• Tcc switch input
• Tcc/ cruise release switch (on brake pedal bracket)
• Torque signal
• Tp sensor ground
• Trans range sw b input
• Underhood fuse block (left) (on right front of engine compt, near battery)
• Vehicle speed sensor (vss) (in lower right rear of engine compt, on transaxle)
• Vss high
• Vss low
• Vss output

3.8L VIN K, Engine Performance Wiring Diagram (2 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN K, Engine Performance Wiring Diagram (2 of 4) for Buick Park Avenue 2005:

• (below ignition control module)
• (in ignition harn, 21 cm from ignition control module)
• (not used)
• 1-2 shift sol
• 2-3 shift sol
• Automatic transaxle
• Automatic transaxle fluid pressure manual valve position switch
• Automatic transaxle fluid temperature sensor
• Automatic transaxle input shaft speed sensor
• Automatic transmission
• Camshaft position (cmp) sensor (3.8l vin k: on right front of engine) (3.8l vin 1: on right front of engine, behind water pump pulley)
• Crankshaft position (ckp) sensor (on left front of engine, next to crankshaft balancer)
• Fuel injectors
• G101
• Hot in run & start
• Injr fuse 10a
• Pnk
• Pressure control sol
• Red
• S108
• S113
• S135
• S136 (in ignition control module harn, 20 cm from ignition control module)
• Tan
• Tcc pwm sol
• Tcc release switch
• Transmission internal mode switch
• Underhood fuse block (left) (on right front of engine compt, near battery)

3.8L VIN K, Engine Performance Wiring Diagram (3 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN K, Engine Performance Wiring Diagram (3 of 4) for Buick Park Avenue 2005:

• (below ignition control module) g101
• (in engine harn, 4 cm from pcm harn breakout)
• (in engine harness, 47.5 cm from pcm) s105
• (in fuel tank) fuel pump & sender assembly
• (left kick panel)
• (on right rear of wheelwell) g400
• A/c refrigerant pressure sensor (near a/c compressor, on hose assembly)
• Engine compartment,
• Engine oil pressure sensor (below power steering pump)
• Exhaust gas recirculation (egr) valve (on top right rear of engine)
• F/pmp fuse 20a
• Fuel pump
• Fuel pump relay
• Fuel tank pressure sensor (in fuel tank)
• G202
• Hot at all times
• Intake air temperature (iat) sensor (in air intake assembly)
• Manifold absolute pressure (map) sensor (on top right side of engine)
• Near battery)
• Red
• S104
• S108
• S115
• S203
• S401
• Stop lamp switch (on brake pedal bracket)
• Tan
• Throttle position (tp) sensor (on throttle body)
• Underhood fuse block (left) (on right front of

3.8L VIN K, Engine Performance Wiring Diagram (4 of 4) for Buick Park Avenue 2005

List of elements for 3.8L VIN K, Engine Performance Wiring Diagram (4 of 4) for Buick Park Avenue 2005:

• (behind glove box) i/p fuse block
• (not used)
• 5 volt reference a
• 5 volt reference b
• A/c clu fuse 10a
• A/c comp relay control
• A/c press sensor in
• A/t fluid temp input
• A13
• Abs switch input
• Air conditioning system
• Boost solenoid control
• C11
• Crk fuse 5a
• Cruise control system
• Cruise status
• D11
• Desired torque control
• E11
• E12
• Ect sensor input
• Egr pintel position input
• Egr valve control
• Eng oil level sw input
• Eng oil press sensor in
• Engine coolant temperature (ect) sensor (under thermostat housing)
• Engine oil level switch (left side of oil pan)
• Evap solenoid control
• Evaporative emissions canister vent solenoid (below rear of vehicle, on evap canister)
• Fuel inj 3 control
• Fuel pump relay control
• Fuel tank press sensor
• G101 (below ignition control module)
• Gen term f monitor
• Gen term l control
• Heated oxygen sensor (ho2s) (bank 1 sensor 1) (on right exhaust manifold)
• Heated oxygen sensor (ho2s) (bank 1 sensor 2) (on exhaust system, rear of catalytic converter)
• Ho2s 1 input
• Ho2s 2 input
• Ho2s low ctrl
• Hot in run & start
• Hot in start
• Iac coil a high
• Iac coil a low
• Iac coil b low
• Iat sensor input
• Idle air control (iac) valve (on throttle body)
• Ignition
• Instrument panel cluster
• Map sensor input
• Mil control
• Mil ind
• Nca
• Oxy sen fuse 10a
• Pcm fuse 10a
• Pnk
• Powertrain control module (pcm) (in air cleaner housing)
• Press sol high control
• Press sol low control
• Rear fuse block (below right side of rear seat)
• Red
• S103
• S108
• Sbm lcm fuse 10a
• Sensor ground
• Starter relay
• Starting/ charging system
• Supercharger boost control solenoid (vin 1) (on top left rear of engine, near oil fill)
• Tach input
• Tach output
• Tan
• Tcc pwm sol control
• Tp sensor input
• Trans range sw a input
• Trans range sw c input
• Trans range sw p input
• Trans tcc release sw in
• Underhood fuse block (left) (on right front of engine compt, near battery)