POWER DISTRIBUTION – Lexus IS 300 2003 – SYSTEM WIRING DIAGRAMS

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2003

List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2003:

• (behind lower right end of dash) passenger side junction block
• (on right rear of engine compartment) engine room relay block 1
• Abs 1 fuse 60a
• Air conditioning & instrument cluster systems
• Alt fuse 120a
• Alt-s fuse 7.5a
• Am2 fuse 20a
• Anti-lock brakes system
• Anti-theft system
• Anti-theft system & horns system
• Anti-theft, body computer, cruise control, door locks, engine controls, exterior lights, headlights, interior lights, instrument cluster, power windows, starting/ charging, transmissions & warning systems
• Anti-theft, body computer, door locks, exterior lights, garage door opener, headlights & interior lights systems
• Anti-theft, body computer, exterior lights & headlight systems
• Anti-theft, exterior lights & headlights systems
• Battery
• Body computer & interior lights systems
• Body computer system & power windows system
• Cds fan fuse 30a
• Cooling fans system
• Cruise control system, engine controls system & transmission systems
• D rr p/w fuse 20a
• Dimmer relay
• Dome fuse 7.5a
• Drl 1 fuse 7.5a
• Drl 2 fuse 30a
• Ecu-b1 fuse 20a
• Ecu-b2 fuse 7.5a
• Efi fuse 25a
• Engine controls, cruise control & transmission systems
• Engine controls, transmission, cruise control systems
• Engine room relay block 2 (on right rear of engine compartment)
• Engine room relay block 3 (on left side of engine compartment)
• Etcs fuse 15a
• Exterior lights system
• Fr fog fuse 15a
• Fr fog relay
• From a engine room relay block 1 (diagram 1 of 3)
• H-lp cln fuse 30a
• Head- light relay
• Headlights system
• Heater fuse 40a
• Heater relay
• Horn fuse 10a
• Left lower head fuse 15a
• Left upper headlmp fuse 15a
• Main fuse 40a
• Mir heater relay
• Mir htr fuse 15a
• Mpx-b fuse 10a
• Obd fuse 7.5a
• P fr p/w fuse 20a
• P rr p/w fuse 20a
• P/seat fuse 30a
• P/w relay
• Passenger side junction block (behind lower right end of dash)
• Radio 1 fuse 20a
• Rdi fan fuse 30a
• Red
• Right lower head fuse 15a
• Right upper headlmp fuse 15a
• Seats system
• Sound systems
• Srs-b fuse 7.5a
• Starter
• Starter relay
• Starting/ charging system
• To driver side junction block (diagram 2 of 3)
• To engine room relay block 1 (diagram 1 of 3)
• To ignition switch (diagram 2 of 3)
• To power outlet fuse (diagram 3 of 3)
• Turn/ hazard fuse 15a
• Wiper/ washer system

Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2003

List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2003:

• (behind lower left end of dash) driver side junction block
• A/c fuse 10a
• Acc
• Air conditioning system
• Air conditioning, instrument cluster, shift interlock & sound systems
• Am 1 fuse 40a
• Anti-lock brakes, cruise control, engine controls, exterior lights, shift interlock & transmission systems
• B11
• B12
• Body computer system & interior lights systems
• Body ecu
• Bsub
• D fr p/w fuse 20a
• Deicer relay
• Door fuse 20a
• Exterior lights system
• Fr def fuse 20a
• From am2 fuse, engine room relay block 1 (diagram 1 of 3)
• From engine room relay block 1 (diagram 1 of 3)
• G11
• H12
• H13
• Ignition switch
• J/c j10 (behind right side of dash)
• K12
• Lock
• Mirror system
• Panel fuse 7.5a
• Power tops system
• Power windows system
• Radio 2 fuse 10a
• Red
• Rr def fuse 40a
• Rr def relay
• Run
• S/roof fuse 30a
• Seat htr fuse 15a
• Seats system
• Srs acc fuse 10a
• Start
• Starter fuse 7.5a
• Starting/ charging, engine controls & transmission systems
• Stop fuse 15a
• Tail fuse 10a
• Tail relay
• To driver side junction block (cig fuse, 15a) (diagram 3 of 3)
• To driver side junction block (gauge fuse, 10a) (diagram 3 of 3)
• To passenger side junction block (ign fuse, 7.5a) (diagram 3 of 3)
• To power outlet relay (diagram 3 of 3)
• Trunk, tailgate & fuel door systems
• Washer fuse 15a
• Wiper fuse 25a
• Wiper/ washer systems

Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2003

List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2003:

• (behind instrument cluster) i1
• (behind lower left end of dash) driver side junction block
• (behind right kick panel) ih
• (under right front seat) bk
• A11
• Air conditioning, cooling fans, headlights, shift interlock & warning systems
• Anti-lock brakes system
• Anti-lock brakes, cruise control, engine controls, exterior lights, headlights, instrument cluster, interior lights, starting/ charging, transmission & warning systems
• Anti-theft system
• Anti-theft, exterior lights & headlights systems
• Bk (right front floor panel)
• Body ecu
• Cellular telephone & exterior lights systems
• Cig fuse 15a
• Cigar- ette lighter
• Cruise control system
• Cruise control, engine controls & transmission systems
• Cruise control, exterior lights, shift interlock, starting/charging & transmission systems
• Defogger & power window systems
• Door dl fuse 15a
• Ecu-ig fuse 10a
• Engine controls system
• Flasher relay
• From driver side junction block (diagram 2 of 3)
• From driver side junction block (radio 2 fuse, 10a) (diagram 2 of 3)
• From e driver side junction block (seat htr fuse, 15a) (diagram 2 of 3)
• From junction connector j10 (diagram 2 of 3)
• From passenger side g junction block (diagram 1 of 3)
• Gauge fuse 10a
• H11
• H13
• Headlights system
• Ign fuse 7.5a
• J/c 16 (above right rear fenderwell)
• Junction connector j/c 5 (behind left end of dash)
• L10
• Navigation system
• Passenger side junction block (behind lower right end of dash)
• Pnk
• Power outlet
• Power outlet (luggage)
• Power outlet fuse 15a
• Power outlet relay
• Power tops system
• Power windows systems
• Rr def relay
• Tv fuse 7.5a