ENGINE PERFORMANCE – Buick Riviera 1997 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.8L

3.8L (VIN 1), Engine Performance Wiring Diagrams (1 of 3) for Buick Riviera 1997

List of elements for 3.8L (VIN 1), Engine Performance Wiring Diagrams (1 of 3) for Buick Riviera 1997:

• (body harn, 87 cm from pcm)
• (body harn, right rear of passenger compt)
• (body harness, 49 cm from turn flasher)
• (under left rear seat)
• (under right rear seat)
• 18x crank pos in
• 5v ref out
• A/c comp ctrl
• A/c request in
• A/t iss sens hi
• A/t iss sens lo
• A/t iss sensor
• Air conditioning system
• Anti-lock brakes system
• Anti-theft system
• Automatic transaxle
• Boost sol valve ctrl
• Brake/tcc sw in
• Cam pos in
• Cooling fans system
• Cruise control system
• Cruise engaged sig
• Data link connector (under left side of i/p)
• Delivered torque out
• Dlc class 2 data
• Egr valve sol ctrl
• Electronic power steering system
• Engine cool fan #1
• Engine cool fan #2
• Engine data sens grd
• Engine oil level in
• Engine oil level switch (center of oil pan)
• Evap emissions purge vacuum switch (right side of engine)
• Evap purge diag sw
• Evap purge sol ctrl
• Evaporative emissions purge solenoid valve (right rear of engine)
• Fuel pump (vin k only) (top of fuel tank)
• Fuel pump fuse 15a
• Fuel pump relay (under right side of rear seat, in rear fuse/relay center)
• Fuel pump rly ctrl
• Fuel pump speed ctrl
• G117 (right rear of engine)
• G304
• Hot at all times
• Hot in run or start
• I/p fuse block
• Iac control
• Icm module bypass
• Idle air control (iac) valve (on side of throttle assembly)
• Ignition ctrl in
• Ignition ctrl ref hi
• Ignition ctrl ref lo
• Intake air temperature (iat) sensor (left front of engine compt)
• Maf fuse 10a
• Maf sensor in
• Mass air flow sensor (left front of engine)
• Mil lamp control
• Nca
• Oxy sens fuse 15a
• Pass-key fuel enable
• Pcm fuse 10a
• Pcm ground
• Pcm/ vats fuse 20a
• Pnk
• Pnk/
• Power (battery)
• Power (ignition)
• Powertrain control module (behind right side of i/p)
• Rear maxi fuse block 2
• Red
• Right rear power dis- tribution center block 1 (under right rear seat)
• S106
• S130
• S131
• S214
• S247
• S248
• S261
• S295
• S334
• S427
• Tan
• Tcc enable sol ctrl
• Tcc solenoid ctrl
• Torque request in
• Trans range sw 'a'
• Trans range sw parity
• Uart data link
• Vehicle speed sensor (on transaxle)
• Vin
• Vin k
• Vss in
• Vss out-4000 ppm
• Vss return
• Warning systems

3.8L (VIN 1), Engine Performance Wiring Diagrams (2 of 3) for Buick Riviera 1997

List of elements for 3.8L (VIN 1), Engine Performance Wiring Diagrams (2 of 3) for Buick Riviera 1997:

• (body harn, 38 cm from pcm)
• (body harn, 97 cm from pcm)
• (icm harn, 20 cm from icm)
• (icm harness, 26.5 cm fom icm)
• (top right front of engine) ignition control module
• (under left rear seat)
• Acc
• Boost control solenoid (vin 1 only) (top left side of engine)
• Camshaft position sensor (right side of engine)
• Clg fan fuse 10a
• Crankshaft position sensor (lower right side of engine)
• Cruise control system
• Engine coolant temperature sensor (top left front of engine)
• Exhaust gas recirc- ulation valve (top left rear of engine)
• Feed out
• Fuel pump (vin 1 only) (top of fuel tank)
• Fuel pump control module (vin 1 only) (in trunk)
• G117 (right rear of engine)
• G119 (top right front of engine, behind icm bracket)
• G304
• Ground
• Ground out
• Hot in run or start
• I/p fuse block
• Ignition amplifier and switching module
• Ignition switch
• Lock
• Nca
• Off
• Park/neutral position switch (top of transaxle)
• Plugs spark
• Pnk
• Power in
• Pwm in
• Red
• Run
• S116
• S126
• S135
• S136
• S154 (eng harn, 8 cm from iac valve)
• S160 (engine harn, center rear of engine compt)
• S245
• S282
• S361
• Spark plugs
• Start
• Tan
• Tcc/antilock brake switch (under left side of i/p)
• Throttle position sensor (throttle body)

3.8L (VIN 1), Engine Performance Wiring Diagrams (3 of 3) for Buick Riviera 1997

List of elements for 3.8L (VIN 1), Engine Performance Wiring Diagrams (3 of 3) for Buick Riviera 1997:

• 1-2 ctrl sol
• 2-3 ctrl sol
• A/c press sens in
• A/c refrigerant pressure sensor (rear of a/c compressor)
• Automatic transaxle
• Check engine indic
• Cruise control system
• Cruise inhibit out
• Ect sensor in
• F15
• 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 injectors
• G103 (right frame rail)
• G117 (right rear of engine)
• Gen field 'f' terminal
• Gen field 'l' terminal
• Heated oxygen sensor #1 (rear of engine, in exhaust manifold)
• Heated oxygen sensor #2 (in exhaust pipe, behind catalyst)
• Ho2s 1 hi in
• Ho2s 1 low in
• Ho2s 2 hi in
• Ho2s 2 low in
• Hot in run or start
• Hot in run, bulb test or start
• I/p fuse block
• Iat sensor in
• Ign 1 fuse 10a
• Inj fuse 15a
• Instrument cluster
• Knock sens #1 in
• Knock sens #2 in
• Knock sensor 1 (lower front of engine)
• Knock sensor 2 (rear of engine)
• Linear egr pos sens in
• Low oil indic
• Low oil level indic ctrl
• Manifold absolute pressure sensor (right front of engine)
• Map sensor in
• Nca
• Pc sol vlv hi
• Pc sol vlv lo
• Pcm ground
• Pcs sol
• Pnk
• Powertrain control module (behind right side of i/p)
• Red
• Rnge 'a'
• Rnge 'b'
• Rnge 'c'
• S115
• S129
• S155
• S258
• S297
• Starting/ charging system
• Tach signal in
• Tan
• Tcc pwm sol
• Tcc rel
• Tcc rel in
• Tcc sol
• Tft sensor
• Tp sensor in
• Tr pressure switch assy
• Tranaxle range c
• Tranaxle rng a
• Trans range sw 'b' in
• Trans range sw 'c' in
• Trans shift sol 'a'
• Trans shift sol 'b'
• Trans temp sens in
• Transaxle range b
• Vehicle speed in

3.8L (VIN K), Engine Performance Wiring Diagrams (1 of 3) for Buick Riviera 1997

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (1 of 3) for Buick Riviera 1997:

• (body harn, 87 cm from pcm)
• (body harn, right rear of passenger compt)
• (body harness, 49 cm from turn flasher)
• (under left rear seat)
• (under right rear seat)
• 18x crank pos in
• 5v ref out
• A/c comp ctrl
• A/c request in
• A/t iss sens hi
• A/t iss sens lo
• A/t iss sensor
• Air conditioning system
• Anti-lock brakes system
• Anti-theft system
• Automatic transaxle
• Boost sol valve ctrl
• Brake/tcc sw in
• Cam pos in
• Cooling fans system
• Cruise control system
• Cruise engaged sig
• Data link connector (under left side of i/p)
• Delivered torque out
• Dlc class 2 data
• Egr valve sol ctrl
• Electronic power steering system
• Engine cool fan #1
• Engine cool fan #2
• Engine data sens grd
• Engine oil level in
• Engine oil level switch (center of oil pan)
• Evap emissions purge vacuum switch (right side of engine)
• Evap purge diag sw
• Evap purge sol ctrl
• Evaporative emissions purge solenoid valve (right rear of engine)
• Fuel pump (vin k only) (top of fuel tank)
• Fuel pump fuse 15a
• Fuel pump relay (under right side of rear seat, in rear fuse/relay center)
• Fuel pump rly ctrl
• Fuel pump speed ctrl
• G117 (right rear of engine)
• G304
• Hot at all times
• Hot in run or start
• I/p fuse block
• Iac control
• Icm module bypass
• Idle air control (iac) valve (on side of throttle assembly)
• Ignition ctrl in
• Ignition ctrl ref hi
• Ignition ctrl ref lo
• Intake air temperature (iat) sensor (left front of engine compt)
• Maf fuse 10a
• Maf sensor in
• Mass air flow sensor (left front of engine)
• Mil lamp control
• Nca
• Oxy sens fuse 15a
• Pass-key fuel enable
• Pcm fuse 10a
• Pcm ground
• Pcm/ vats fuse 20a
• Pnk
• Pnk/
• Power (battery)
• Power (ignition)
• Powertrain control module (behind right side of i/p)
• Rear maxi fuse block 2
• Red
• Right rear power dis- tribution center block 1 (under right rear seat)
• S106
• S130
• S131
• S214
• S247
• S248
• S261
• S295
• S334
• S427
• Tan
• Tcc enable sol ctrl
• Tcc solenoid ctrl
• Torque request in
• Trans range sw 'a'
• Trans range sw parity
• Uart data link
• Vehicle speed sensor (on transaxle)
• Vin
• Vin k
• Vss in
• Vss out-4000 ppm
• Vss return
• Warning systems

3.8L (VIN K), Engine Performance Wiring Diagrams (2 of 3) for Buick Riviera 1997

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (2 of 3) for Buick Riviera 1997:

• (body harn, 38 cm from pcm)
• (body harn, 97 cm from pcm)
• (icm harn, 20 cm from icm)
• (icm harness, 26.5 cm fom icm)
• (top right front of engine) ignition control module
• (under left rear seat)
• Acc
• Boost control solenoid (vin 1 only) (top left side of engine)
• Camshaft position sensor (right side of engine)
• Clg fan fuse 10a
• Crankshaft position sensor (lower right side of engine)
• Cruise control system
• Engine coolant temperature sensor (top left front of engine)
• Exhaust gas recirc- ulation valve (top left rear of engine)
• Feed out
• Fuel pump (vin 1 only) (top of fuel tank)
• Fuel pump control module (vin 1 only) (in trunk)
• G117 (right rear of engine)
• G119 (top right front of engine, behind icm bracket)
• G304
• Ground
• Ground out
• Hot in run or start
• I/p fuse block
• Ignition amplifier and switching module
• Ignition switch
• Lock
• Nca
• Off
• Park/neutral position switch (top of transaxle)
• Plugs spark
• Pnk
• Power in
• Pwm in
• Red
• Run
• S116
• S126
• S135
• S136
• S154 (eng harn, 8 cm from iac valve)
• S160 (engine harn, center rear of engine compt)
• S245
• S282
• S361
• Spark plugs
• Start
• Tan
• Tcc/antilock brake switch (under left side of i/p)
• Throttle position sensor (throttle body)

3.8L (VIN K), Engine Performance Wiring Diagrams (3 of 3) for Buick Riviera 1997

List of elements for 3.8L (VIN K), Engine Performance Wiring Diagrams (3 of 3) for Buick Riviera 1997:

• 1-2 ctrl sol
• 2-3 ctrl sol
• A/c press sens in
• A/c refrigerant pressure sensor (rear of a/c compressor)
• Automatic transaxle
• Check engine indic
• Cruise control system
• Cruise inhibit out
• Ect sensor in
• F15
• 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 injectors
• G103 (right frame rail)
• G117 (right rear of engine)
• Gen field 'f' terminal
• Gen field 'l' terminal
• Heated oxygen sensor #1 (rear of engine, in exhaust manifold)
• Heated oxygen sensor #2 (in exhaust pipe, behind catalyst)
• Ho2s 1 hi in
• Ho2s 1 low in
• Ho2s 2 hi in
• Ho2s 2 low in
• Hot in run or start
• Hot in run, bulb test or start
• I/p fuse block
• Iat sensor in
• Ign 1 fuse 10a
• Inj fuse 15a
• Instrument cluster
• Knock sens #1 in
• Knock sens #2 in
• Knock sensor 1 (lower front of engine)
• Knock sensor 2 (rear of engine)
• Linear egr pos sens in
• Low oil indic
• Low oil level indic ctrl
• Manifold absolute pressure sensor (right front of engine)
• Map sensor in
• Nca
• Pc sol vlv hi
• Pc sol vlv lo
• Pcm ground
• Pcs sol
• Pnk
• Powertrain control module (behind right side of i/p)
• Red
• Rnge 'a'
• Rnge 'b'
• Rnge 'c'
• S115
• S129
• S155
• S258
• S297
• Starting/ charging system
• Tach signal in
• Tan
• Tcc pwm sol
• Tcc rel
• Tcc rel in
• Tcc sol
• Tft sensor
• Tp sensor in
• Tr pressure switch assy
• Tranaxle range c
• Tranaxle rng a
• Trans range sw 'b' in
• Trans range sw 'c' in
• Trans shift sol 'a'
• Trans shift sol 'b'
• Trans temp sens in
• Transaxle range b
• Vehicle speed in