ENGINE PERFORMANCE – Saturn SC2 1999 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.9L

1.9L VIN 7, Engine Performance Wiring Diagrams (1 of 4) for Saturn SC2 1999

List of elements for 1.9L VIN 7, Engine Performance Wiring Diagrams (1 of 4) for Saturn SC2 1999:

• "a"
• "b"
• (left rear of engine) g114
• (right rear of engine) g117
• +5v volts
• 1140a
• 1294a
• 1295a
• 1344a
• 1456a
• 1807a
• 1807b
• 416b
• 417a
• 432a
• 444a
• 451c
• 451e
• 452k
• 472a
• 551a
• 551c
• 5v bus bar
• 5v ref
• 5v tps
• 639a
• 697b
• 86b
• A/c relay ctrl
• A/c request in
• A10
• A11
• A12
• Abs control module
• Air conditioning system (a/c high/low press. sw.)
• Air conditioning system (a/c relay)
• B10
• B11
• B12
• Brake in
• C1 e1
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• Class 2 data bus
• Coil
• Conn j1
• Conn j2
• Connector (dlc) (on bottom left of dash)
• Cool fan mtr ctrl
• Cool temp gage out
• Cool temp: a/t fl. tt
• Cooling fans system (cooling fan relay)
• Cruise clutch out
• Cruise control module
• Cruise control system
• Cruise move out
• Cruise rasc in
• Cruise wot/idle out
• Cylinder no.4 sig out
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Data link
• Dckld/lftgte enable
• Egr fuse 10a
• Eis fuse 10a
• Electrical variable orifice (evo) solenoid (dohc only) (on bottom of power steering pump)
• Electronic ignition (ei) module (on top left rear of engine)
• Eng cool tmp sens in
• Est 1-4 in
• Est 1-4 out
• Est 2-3 in
• Est 2-3 out
• Evap ctrl
• Evap sol out
• Evaporative emission canister purge solenoid (in lower rear of engine compartment on block)
• Evo hi
• Evo lo
• Flash power
• Flash return
• Fuel gauge out
• Fuel pump out
• Gnd
• Ground bus
• Hot at all times
• Hot in run or crank
• Iac a hi out
• Iac a lo out
• Iac b hi out
• Iac b lo out
• Iat sensor in
• Idle air control (iac) valve (on throttle body assembly)
• Ign
• Ign1
• Inj
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj fuse 10a
• Lin egr feedback in
• Lin egr recirc
• Lin egr sol ctrl
• Low fuel tt
• Map in
• Mil (serv eng) tt
• Or 633m
• Pcm 1 fuse 10a
• Pcm b fuse 10a
• Pnk
• Pnk a
• Power ground
• Powertrain control module (pcm) (behind left side of dash)
• Service tt
• Spark plugs
• Speed out 5k ppm
• Tach out
• Tan
• Tps in
• Trunk, tailgate & fuel doors system
• Underhood junction block (uhjb) (on left side of engine compartment, near battery)
• Upshift tt

1.9L VIN 7, Engine Performance Wiring Diagrams (2 of 4) for Saturn SC2 1999

List of elements for 1.9L VIN 7, Engine Performance Wiring Diagrams (2 of 4) for Saturn SC2 1999:

• (at base of left "d" pillar) g999
• (left front fender) g100
• A/t only
• Brake switch (opens w/brake pedal depressed) (on brake pedal support)
• Cruise control module
• Cruise fuse 5a
• Engine coolant temp/low coolant auto trans fluid temp ind
• Engine coolant temperature sensor (on rear of engine)
• Evaporative canister vent valve solenoid (on fuel filler neck)
• Fuel gauge in
• Fuel pump fuse 10a
• Fuel pump m
• Fuel pump relay
• Fuel tank inline
• Fuel tank unit
• G314 (left side of rear shelf)
• Hot in run
• Hot in run or crank
• I/p cluster
• I/p junction block (behind center of dash)
• I/p splice pack 1 (left rear corner of engine compartment)
• Ign 1 fuse 10a
• Intake air temperature (iat) sensor (on intake air duct)
• Left rear body ground splice pack (sedan & coupe) (left side of rear shelf) (wagon) (at base of left "d" pillar)
• Linear egr solenoid (dohc: in engine compt, on camcover, sohc: in engine compt, on intake manifold)
• Low fuel ind
• M/t only
• Malfunction indicator lamp (service engine soon)
• Manifold absolute pressure (map) sensor (on intake manifold, right side of engine)
• Motor
• Pnk
• Pnk e
• Probe hole
• Red
• Sedan & coupe
• Service ind
• Speed in
• Tach sig in
• Tan
• Temp gauge in coolant
• Throttle position (tp) sensor (on throttle body assembly)
• Upshift ind
• Wagon

1.9L VIN 7, Engine Performance Wiring Diagrams (3 of 4) for Saturn SC2 1999

List of elements for 1.9L VIN 7, Engine Performance Wiring Diagrams (3 of 4) for Saturn SC2 1999:

• (right rear of engine) g117
• A12
• Air pump fuse 30a
• Air pump relay
• Air pump solenoid (dohc/lev at front center of engine compartment)
• B/u
• C2 f11
• C3 a4
• Coolant level switch (open when coolant level is low) (in coolant reservoir)
• D10
• D11
• D12
• E12
• Egr fuse 10a
• Exhaust air pump (dohc/lev) (at front center of engine compartment)
• F11
• F12
• G101
• G2 actuator
• G3 actuator
• G4 actuator
• Heated oxygen sensor (ho2s) (in exhaust pipe, behind catalytic converter)
• Hot at all times
• Hot in run or crank
• Ip batt fuse 30a
• Lp fuse 10a
• Nca
• Pnk
• Pnk b
• Red
• Right forward lamp splice pack (right front fender)
• Tcc actuator
• Tfp actuator
• To exhaust manifold
• Transaxle actuators (on top of automatic transaxle)
• Trs 2/ tcc fuse 10a
• Trs 3/4 fuse 10a
• Trs lp fuse 10a
• Underhood junction block (uhjb) (on left side of engine compartment, near battery)

1.9L VIN 7, Engine Performance Wiring Diagrams (4 of 4) for Saturn SC2 1999

List of elements for 1.9L VIN 7, Engine Performance Wiring Diagrams (4 of 4) for Saturn SC2 1999:

• (in left front of engine compartment) transaxle fluid temperature sensor
• (left rear of engine) g114
• (on right rear of engine) crankshaft position sensor
• (on transaxle differential) vehicle speed sensor (vss)
• (right rear of engine) g117
• 1423 1423a
• 1668 1668m
• 2nd out
• 3rd out
• 400m
• 401 401m
• 412 412m
• 413a 413am
• 413b 413bm
• 415f
• 452g
• 452gg
• 452h
• 452hm
• 452j
• 452jm
• 452m
• 452mb
• 452n
• 452nm
• 452t
• 496 496m
• 4th out
• 551b
• 573m
• 574m
• 633m
• 68a 68am
• 7x ref hi
• 7x ref lo
• A/t only
• A10
• A11
• A12
• Air pump rly ctrl
• Air pump solenoid ctrl
• B10
• B11
• B12
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• Case gnd
• Closed in d2, d3 & d4 positions
• Closed in p, n & d3 positions
• Closed in p, r & d2 positions
• Closed in r, n & d4 positions
• Conn j3
• Conn j4 (a/t only)
• Coolant level in
• Cyl no.4 sig
• D10
• D11
• D12
• D13
• D14
• D15
• D16
• Ect sens rtn
• Fuel level in
• Fuel level sens/rtn
• Fuel level sensor
• Fuel tank inline
• Fuel tank press sens in
• Fuel tank press sens rtn
• Fuel tank pressure sensor
• Fuel tank unit
• Ho2s (rear) hi in
• Ho2s (rear) lo in
• Ho2s heater ctrl
• Iat sensor rtn
• Knock sensor (on engine block, above starter)
• Knock sensor in
• Lin egr feedback rtn
• Map rtn
• Nca
• O2s (front) hi in
• O2s (front) lo in
• Oxygen sensor (in exhaust manifold)
• Park/neutral position switch (a/t only) (on right rear of transaxle)
• Pnk
• Power ground
• Powertrain control module (pcm) (behind left side of dash)
• Sel sw b0
• Sel sw b1
• Sel sw b2
• Sel sw b3
• Tan
• Tcc out
• Tfp out
• Tps rtn
• Trans fluid temp in
• Trans fluid temp rtn
• Turbine hi spd in
• Turbine lo spd in
• Turbine shaft speed sensor (on transaxle, near differential)
• Underhood junction block (uhjb) (on left side of engine compartment, near battery)
• Vss hi in
• Vss lo in