ENGINE PERFORMANCE – Lexus SC 300 1997 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus SC 300 1997

List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 3) for Lexus SC 300 1997:

• #10
• #20
• #30
• #40
• #50
• #60
• (closed in park and neutral)
• (eng harn, left rear of eng)
• (eng harn, right rear of eng compt)
• (front side of left fender)
• (i/p harn, center of dash)
• (i/p harn, ctr right of dash)
• (i/p harn, right side of dash)
• (left
• (on transmission)
• (right
• A/t
• A/t only
• Acc
• Acis
• Am1
• Am2
• Clutch start
• Coil
• Conn e12 (a/t) conn e14 (m/t)
• Crankshaft position sensor (right front of engine)
• Distributor (top right of engine) g-
• E01
• E02
• E03
• E21
• E24
• Efi fuse 30a
• Efi main relay
• Egr
• Electronically controlled transmission solenoid
• Engine control module (behind right side of dash)
• Engine)
• Evap
• Evg
• Fpu
• Front of
• Fuel injectors
• Fuse block (left side of engine compartment)
• G100
• G112 (front side of intake manifold)
• G114 (rear side of right cylinder head)
• Heated oxygen sensors (diagram 3 of 3)
• Hot at all times
• Ht1
• Ht2
• I13
• I21 (i/p harn, right side of dash)
• I25
• I25 (a/t)
• I26 (m/t)
• I28
• I29
• Idl
• Idl2
• Idle air control valve (left rear of eng compt)
• Ig2
• Igf
• Ign fuse 7.5a
• Igniter (left rear of engine compartment)
• Ignition
• Ignition switch
• Igt
• Instrument cluster system (tachometer)
• Isc1
• Isc2
• Isc3
• Isc4
• J/b 1 (left kick panel)
• Knk1
• Knk2
• Knock sensor 1 (top front of engine)
• Knock sensor 2 (top front of engine)
• Lock
• M/t
• Main fuse 60a
• Nca
• Ne2
• Ne2-
• Noise filter (right front of engine compt)
• Nsw
• Ox2
• Park/neutral position switch (on transmission)
• Pnk
• R/b 2 engine compt)
• Red
• Right side of dash)
• Short connector (behind glove box)
• Slry
• Sp2+
• Sp2-
• St fuse 7.5a
• St1
• Sta
• Start
• Starter relay
• Starting/ charging system
• Switch (on clutch pedal bracket)
• Tach
• Tha
• Theft deterrent & door lock ecu (behind center of dash)
• Thg
• Thw
• Vehicle speed sensor #2
• Vta
• Vta2
• W/o trac ctrl
• W/o trac. ctrl.
• W/trac. ctrl.

3.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus SC 300 1997

List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 3) for Lexus SC 300 1997:

• (a/t only)
• (eng harn, left of eng)
• (eng harn, left rear of engine)
• (eng harn, left side of eng)
• (eng harn, right rear of engine compt)
• (eng harn, top of eng)
• (engine harn, left side of engine)
• (i/p harn, right ctr of dash)
• (i/p harn, right side of dash)
• (left front
• (under
• (under left center pillar) g308
• (i/p harn, behind right side of dash)
• * (i/p harn, left center of dash)
• * i9
• A/t indicator light
• A/t indicator switch (on trans- mission) (a/t only)
• A/t only
• A10
• A12
• Anti-lock brakes system (traction ecu)
• Ashtray)
• B13
• B18
• Combination meter
• Coolant
• D10
• D13
• D14
• D23
• E12
• E18
• E20
• E20 (w/o trac cntrl) (w/ trac cntrl) e21
• E21
• E23
• E24
• Egr gas temperature sensor (center rear of engine compt)
• Egr valve (left side of engine)
• Electronically controlled transmission pattern select switch (on console)
• Engine
• Evap valve (left rear of engine compt)
• Fpc
• Fuel pressure up valve (left side of engine)
• Fuel pump
• Fuel pump ecu (under center console)
• G302
• Gauge fuse 10a
• H12
• Hot in on or start
• I17
• I19
• I25
• I25 (i/p harness, right side of dash)
• I29
• Intake control valve (left rear of engine compt)
• Interior lights system
• J/b 1 (left
• J/b 3 (behind center of dash)
• Kick panel)
• Left
• Malf. ind. lamp
• Mass air flow meter (on air cleaner housing)
• Norm
• O/d off ind.
• Of engine)
• Out
• Pnk
• Power ind.
• Pwr
• Red
• Sensor
• Solid state
• Speedometer
• Sub throttle position sensor (right center of engine)
• Temperature
• Throttle position sensor (top center of engine)
• Vehicle speed sensor #1 (on transmission)
• Vss
• W/ trac cntrl
• W/o trac cntrl
• W/traction control

3.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus SC 300 1997

List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 3) for Lexus SC 300 1997:

• (i/p harn, left center of dash)
• (i/p harn, right side of dash)
• (left kick panel) g200
• A/c
• Acmg
• Air conditioning system
• Anti-lock brakes system (traction ecu)
• Batt
• C13
• Conn e11 (a/t) conn e13 (m/t)
• Connector 1 (check connector) (right rear of engine compt)
• Cruise control system
• Data link
• Data link connector 2 (behind left side of dash)
• Data link connector 3 (behind left side of dash)
• Defogger system
• Diode (for idle-up)
• E18
• E19
• E24
• Els
• Engine control module (behind right side of dash)
• Exterior lights system
• Fpc
• From engine control module conn e12/e14 pin 47 (diagram 1 of 3)
• From engine control module conn e12/e14 pin 48 (diagram 1 of 3)
• From engine control module conn e12/e14 pin 71 (diagram 1 of 3)
• From engine control module conn e12/e14 pin 72 (diagram 1 of 3)
• G112 (front side of intake manifold)
• G112 (rear of right cylinder head)
• G114 (rear side of right cylinder head)
• G200 (left kick panel)
• Heated oxygen sensor (bank 2 sensor 2) (in exhaust manifold, after twc)
• Hot at all times
• Htl2
• I10
• I19
• I25
• I28
• I35
• Igsw
• J/b 1 (left kick panel)
• J/b 3 (behind center of dash)
• M-rel
• Main heated oxygen sensor (bank 1 sensor 1) (in exhaust manifold)
• Main heated oxygen sensor (bank 2 sensor 1) (in exhaust manifold)
• Neo
• O/d main switch (on console)
• Obdii fuse 7.5a
• Od1
• Od2
• Oxl2
• Pnk
• Power steering pressure switch (left front of engine) (a/t only)
• R/b 4 (on j/b 1) (left kick panel)
• Red
• Sdl
• Sp1
• Stop fuse 15a
• Stop light switch (under left side of dash)
• Stp
• Te1
• Vto1
• Vto2