ENGINE PERFORMANCE – Toyota Avalon XLS 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagram (1 of 4) for Toyota Avalon XLS 2003

List of elements for 3.0L, Engine Performance Wiring Diagram (1 of 4) for Toyota Avalon XLS 2003:

• (cpu) multi-display
• (dash harn, behind right side of dash)
• (on left rear of engine) left variable valve timing solenoid
• (on left rear of left cyl head) camshaft position sensor (left)
• (on right rear of engine) right variable valve timing solenoid
• (on right rear of right cyl head) camshaft position sensor (right)
• (rear of surge tank)
• Aci1
• Acis
• Afl+
• Afl-
• Afr+
• Afr-
• Air fuel ratio sensor (bank 1, sensor 1) (on right exhaust manifold)
• Air fuel ratio sensor (bank 2, sensor 1) (on left exhaust manifold)
• Conn e4
• Conn e5
• E01
• E02
• E03
• E04
• E05
• E2g
• E5 (engine harn, top front of engine)
• Eb (right side of surge tank)
• Engine control module (behind right side of dash)
• Engine coolant temperature sensor (on top right front of engine)
• Evp1
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Fuel injector 5
• Fuel injector 6
• Hafl
• Hafr
• I22
• I23
• Igf
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• J/c 8 (behind right side of dash)
• Knkl
• Knkr
• Mass airflow meter (on left side of engine compartment)
• Nc2+
• Nc2-
• Nca
• Ne+
• Ne-
• Oc1+
• Oc1-
• Oc2+
• Oc2-
• Pnk
• Power steering oil pressure switch (right rear of engine compt)
• Ptnk
• Red
• Rso
• Sln+
• Sln-
• Tha
• Throttle position sensor (on throttle body)
• Thw
• Vapor pressure sensor (on left rear of vehicle, at fuel tank)
• Vcc
• Vsv (evap) (on top center of engine)
• Vta1
• Vv1+
• Vv2+

3.0L, Engine Performance Wiring Diagram (2 of 4) for Toyota Avalon XLS 2003

List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 4) for Toyota Avalon XLS 2003:

• (dash harn, behind upper right side of dash)
• (engine harn, front of engine)
• (on left side of engine compartment) noise filter
• (on lower left front of engine) crankshaft position sensor
• (on right side of engine)
• (on top of transaxle) o/d direct clutch speed sensor
• (rear side of surge tank)
• (right side of surge tank) eb
• (top left of engine) ignition coil & igniter 2
• (top left of engine) ignition coil & igniter 4
• (top left of engine) ignition coil & igniter 6
• (top right of engine) ignition coil & igniter 1
• (top right of engine) ignition coil & igniter 3
• (top right of engine) ignition coil & igniter 5
• Acc
• B5 (body harn, under right side of dash)
• E4 (engine harn, right rear of engine compt)
• Heated oxygen sensor (bank 1, sensor 2) (on exhaust pipe, rear of cat conv)
• Hot at all times
• I14
• Idle air control valve (on throttle body assembly)
• Ignition switch
• J/c 17 (behind center of dash)
• Knock sensor no. 1 (on top of engine)
• Knock sensor no. 2 (on top of engine)
• Lock
• Nca
• Pnk
• Red
• Start
• Top front of engine)
• Vsv (acis no.1)
• Vsv (acis no.2) (on right side of engine)
• Vsv (acm) (on right front of engine compartment)
• Vsv (canister closed valve) (on left side of engine compartment)
• Vsv (pressure switching valve) (on left rear of vehicle, at fuel tank)

3.0L, Engine Performance Wiring Diagram (3 of 4) for Toyota Avalon XLS 2003

List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 4) for Toyota Avalon XLS 2003:

• (in dash harn, at left kick panel)
• A/f fuse 25a
• A/f relay
• A16
• A17
• A18
• B10
• B12
• B13
• B17
• B20
• Bat
• Body ecu (behind left side of dash)
• C11
• C13
• C16
• C18
• Circuit opening relay
• Cruise control system
• D16
• D18
• Data link connector 3 (behind left side of dash)
• Data link connector 2 (behind left side of dash)
• Driver side j/b (behind left side of dash)
• Driver side r/b 6 (behind left kick panel)
• Ec (rear side of surge tank)
• Ed (front side of left fender)
• Efi 1 fuse 15a
• Efi 2 fuse 7.5a
• Efi relay
• Electronically controlled transmission solenoid (on left side of transaxle)
• Engine room j/b (on left front inner fender panel)
• F16
• F18
• Fuel pump (in fuel tank)
• G16
• G17
• G18
• H18
• Hot at all times
• Ig (behind left kick panel)
• Ig2 fuse 15a
• Ig2 relay
• Instrument cluster
• J/b 3 (behind left kick panel)
• J/b 4 (behind right kick panel)
• J/c 11 (left front side of trunk)
• J/c 17 (behind center of dash)
• J/c 5 (behind right side of dash)
• J/c 7 (behind right side of dash)
• J/c 8 (behind right side of dash)
• J/c 9 (on top of right kick panel)
• Nca
• O/d off
• Pnk
• Red
• Sil
• Sln+
• Sln-

3.0L, Engine Performance Wiring Diagram (4 of 4) for Toyota Avalon XLS 2003

List of elements for 3.0L, Engine Performance Wiring Diagram (4 of 4) for Toyota Avalon XLS 2003:

• (dash harn, behind upper right side of dash)
• (or 1)
• (or 3)
• A/c
• A/c system
• A13
• Abs system
• Acc
• Acm1
• Acmg
• Ant1
• Ant2
• Anti-theft system, instrument cluster system
• B11
• B13
• Batt
• C11
• C15
• C16
• C20
• Ccv
• Code
• Conn e6
• Conn e7
• Conn e8
• Cooling fans system
• Cruise control system
• D10
• D11
• D15
• D20
• Diode (a/t ind light switch) (behind right center of dash)
• Door locks system
• Driver side j/b (behind left side of dash)
• Ecu- ig 2 fuse 10a
• Ecu-acc fuse 5a (w/ column shift)
• Els
• Els2
• Eng+
• Eng-
• Engine control module (behind right side of dash)
• Eom
• F13
• F16
• Gauge fuse 10a
• Gnd
• Hot at all times
• Hot in on or accy
• Hot in on or start
• Hot w/ defogger relay energized
• Hot w/ ig1 relay energized
• Hot w/ tail relay energized
• Hts
• I13
• Idlo
• Ignition switch
• Igsw
• Ii (behind right kick panel)
• Imld
• Instrument cluster system
• J/b 3 (behind left kick panel)
• J/b 4 (behind right kick panel)
• J/c 17 (behind center of dash)
• J/c 6 (behind right center of dash)
• Ksw
• Lock
• Malfunction indicator (multi- display)
• Mir/htr fuse 10a
• Mrel
• Neo
• Nsw
• O/d main switch (below center console)
• Obd-ii fuse 7.5a
• Od1
• Odlp
• Odms
• Oxs
• Park/neutral position switch (on left side of transaxle)
• Pnk
• Ptnk
• Red
• Rxck
• Sil
• Spd
• Sta
• Start
• Starting/charging system
• Stop fuse 15a
• Stoplight switch (on bracket, above brake pedal)
• Stp
• Tach
• Tail fuse 10a
• Tbp
• Thwo
• Transponder key amplifier (left side of dash, on steering column)
• Transponder key coil
• Trc+
• Trc-
• Txct