ENGINE PERFORMANCE — Lexus RX 300 1999 — SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus RX 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus RX 300 1999:

• (dash harn, right side of dash)
• (engine harn, top front of engine)
• (front side of engine) counter gear speed sensor
• (left rear of engine) left camshaft timing oil control valve
• (or red)
• (right rear of engine) right camshaft timing oil control valve
• Aci1
• Acis
• Afl+
• Afl-
• Afr+
• Afr-
• Conn e6
• Conn e7
• Crankshaft position sensor (front side of engine)
• Dsl
• E01
• E02
• E03
• E04
• E05
• E2g
• E4 (engine harn, top front of engine)
• E6 (engine harn, rear of engine)
• Electronically controlled transmission solenoid (in transaxle)
• Engine control module (behind right side of dash)
• Evp1
• Fuel injectors
• G120 (rear side of surge tank)
• G120 (right side of surge tank)
• Hafl
• Hafr
• I11
• Idle air control valve (top rear of engine)
• Igf
• Ignition coils and ignitors
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• J/c 10 (behind right side of dash)
• Knkl
• Knkr
• Knock sensor 1 (top right side of engine)
• Knock sensor 2 (top left side of engine)
• Left vvt sensor (left rear of engine)
• Mass airflow meter (near air cleaner housing, on air duct)
• Nc+
• Nc-
• Nca
• Ne+
• Ne-
• Noise filter (near air cleaner housing)
• Oc1+
• Oc1-
• Oc2+
• Oc2-
• Power steering oil pressure switch (right rear of engine)
• Red
• Right vvt sensor (right rear of engine)
• Rso
• Sl1+
• Sl1-
• Sl2+
• Sl2-
• Tha
• Tho
• Thw
• Vta1
• Vv1
• Vv2

3.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus RX 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus RX 300 1999:

• (dash harn, left side of dash)
• (engine harn, rear of engine)
• (in engine romm j/b) r/b 2
• (left side of dash) r/b 1
• (rear side of surge tank) g120
• A/f heater relay
• A/f htr fuse 25a
• Acc
• Air fuel ratio sensor (bank 1 sensor 1) (right exhaust manifold)
• Air fuel ratio sensor (bank 2 sensor 1) (left exhaust manifold)
• Am2
• Circuit opening relay
• Efi fuse 20a
• Efi relay
• Engine room junction block (left side of engine compt)
• Fuel pump (in fuel tank)
• G106
• G402 (left rear wheelwell)
• Heated oxygen sensor (bank 1 sensor 2) (in exhaust, rear of catalytic converter)
• Hot at all times
• Ig2
• Ign fuse 5a
• Ignition switch
• Instrument panel junction block (behind left side of dash)
• J/c 10 (behind right side of dash)
• J/c 12 (left side of luggage compt)
• J/c 2 (behind left headlamp)
• J/c 3, j/c 4 (behind left side of dash)
• Lock
• Nca
• P/n
• Park/ neutral position switch (on transaxle)
• Red
• St2
• Start
• Starter fuse 7.5a

3.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus RX 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus RX 300 1999:

• (dash harn, right side of dash)
• (engine harn, rear of engine)
• (left rear corner of engine compt) data link connector 1
• (under left side of dash)
• A15
• A16
• Bat
• C10
• C17
• C21
• Combination meter
• Computer data lines system
• Data link connector 3
• E10
• E11
• Engine coolant temperature sensor (top front of engine)
• G120 (rear side of surge tank)
• Heater fuse 15a
• Hot at all times
• I11
• I12
• Instrument panel junction block (behind left side of dash)
• J/b 3 (behind upper center of dash)
• J/b 5 (behind upper left side of dash)
• J/c 10 (behind right side of dash)
• J/c 6 (behind left side of dash)
• K13
• Malf ind lamp
• Mpx1
• Mpx2
• O/d off ind
• Obd fuse 7.5a
• Ptnk
• Sil
• Spd
• Stop fuse 20a
• Stoplight switch (on brake pedal braket)
• Tach
• Te1
• Throttle position sensor (on throttle body)
• Vapor pressure sensor (under center rear of vehicle)
• Vss
• Vsv (acis 1) (top center of engine)
• Vsv (acis 2) (top center of engine)
• Vsv (acm) (right front of engine compt)
• Vsv (evap) (top center of engine)
• Vsv (vapor pressure sensor) (center rear of vehicle)

3.0L, Engine Performance Wiring Diagrams (4 of 4) for Lexus RX 300 1999

List of elements for 3.0L, Engine Performance Wiring Diagrams (4 of 4) for Lexus RX 300 1999:

• (behind left side of dash) cruise control ecu
• (dash harn, right side of dash)
• (left front of engine) oil pressure switch
• (on transaxle) turbine speed sensor
• A/c system
• A/t indicator light switch (integral to park/neutral position switch) (on transaxle)
• Abs & traction ecu (behind right side of dash)
• Abs ecu (w/o traction) (behind right side of dash)
• Acm1
• Acmg
• Batt
• Body ecu (behind left side of dash)
• Code
• Computer data lines
• Conn e5
• Conn e8
• Conn e9
• Cooling fans
• Electronically controlled transmission solenoid
• Eng+
• Eng-
• Engine control module (behind right side of dash)
• G202
• G206 (center of dash)
• G206 (left side of passenger's footwell)
• Gauge fuse 7.5a
• Generator
• Hot at all times
• Hts
• I11
• I6 (dash harn, center of dash)
• Idl
• Igsw
• Imld
• Instrument panel junction block (behind left side of dash)
• J/b 3 (behind upper center of dash)
• J/c 5 (left side of dash)
• J/c 7 (behind right side of dash)
• Ksw
• Lcki
• Mops
• Mpx1
• Mpx2
• Mrel
• Neo
• Nsw
• Nt+
• Nt-
• O/d main switch
• Od1
• Od2
• Oxs
• Pre
• Ptnk
• Red
• Rxck
• Sil
• Slt+
• Slt-
• Spd
• Sta
• Stp
• Tach
• Tpc
• Transponder key amplifier (behind left side of dash)
• Trc+
• Trc-
• Txct
• Unlock warning switch