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Lexus IS300 CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Lexus REPAIR SHOPS DON'T WANT YOU TO KNOW
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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about Lexus IS300 car and truck
repair procedures including Lexus engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work
guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up &
drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install
procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c
system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix
your Lexus IS300 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR Lexus IS300 AUTOMOBILES
Air Conditioner and Heater Service Includes module configuration procedures, general service, maintenance, automatic temperature control, compressor services, electric cooling fans, vacuum diagrams, specifications, and manual air conditioning and heater diagnostics and replacement procedures for domestic and imported Lexus IS300 cars and light trucks from 1990+
Lexus -> Electric Cooling Fans -> Component Diagnosis & Testing -> Cooling Fan -> Cooling Fan Computer Wire Harness -> Cooling Fan ECU -> Cooling Fan Main Relay -> Cooling Fan Motor -> Cooling Fan Operation -> Cooling Fan Relay No. 2 -> Cooling Fan Relay No. 3 -> Cooling Fans -> Engine Coolant Temperature Switch -> ES 300 -> ES 330 -> Fan Main Relay -> Fan Motor -> GS 300 & GS 430 -> IS 300 -> LS 430 & SC 430 -> LX 470 -> No. 1 & No. 3 Cooling Fan Relay -> No. 1 Cooling Fan Relay -> No. 1 Engine Coolant Temperature (ECT) Switch -> No. 2 Cooling Fan Relay -> No. 2 Engine Coolant Temperature (ECT) Switch -> No. 3 Cooling Fan Relay -> No.2 Engine Coolant Temperature (ECT) Switch -> On Vehicle Inspection -> On-Vehicle Inspection -> Radiator Fan Main Relay -> RX 300 -> RX 330 -> Temperature Switch
Vehicle: 2003 Lexus IS300 Sportcross 3.0 L6 GAS
ES 300
Refer to "Camry" in in "Toyota" for service procedures.
ES 330
On-Vehicle Inspection
- With coolant temperature below 83°C (181°F), turn ignition On and ensure fan stops. If fan does not stop, proceed to next step. If fan stops, inspect cooling fan.
- Inspect fan relays.
- Disconnect No. 1 Engine Coolant Temperature (ECT) switch connector.
- Connect terminals of No. 1 ECT switch connector using a suitable jumper wire. If fan rotates at high speed, proceed to next step. If fan does not rotate, inspect cooling fan main...
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BRAKE SERVICE PROCEDURES FOR Lexus IS300 AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported Lexus IS300 cars and light trucks from 1990+.
Lexus -> Hydraulic Brake Systems -> Component Service -> Assemble -> Disassemble -> ES300 & ES330 -> Except LX470 -> GS300, GS430 & SC430 -> GX470 -> Hydraulic Brake Booster -> Inspection -> LX470 -> Master Cylinder -> Models w/Load Sensing Proportioning Valve (LSPV) -> Models w/Proportioning & Bypass Valve (P-BV) -> Proportioning Valve -> RX300
Vehicle: 2003 Lexus IS300 3.0 L6 GAS
Master Cylinder
Except LX470
Disassemble
- Remove brake fluid reservoir, Figs. through .
- Remove set screw, then the reservoir tank.
- Remove cap and strainer from reservoir.
- Remove two grommets, then place cylinder in suitable vise.
- On models less TRAC and VSC, push piston in and remove stopper bolt.
- On models with TRAC, push pistons in and remove No. 1, then No. 2 stopper bolts.
- On models with VSC, push in piston with a screwdriver, then remove straight pin by turning over cylinder body. Tape screwdriver tip before using it.
- On all models, push pistons in and remove snap ring, then carefu...
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FUEL FILTER REPLACEMENT PROCEDURES FOR Lexus IS300 AUTOMOBILES
Fuel filter replacement procedures with corresponding images for most domestic and imported Lexus IS300 cars and light trucks sold in the U.S. for 1980+.
Lexus -> Fuel Filter Replacement -> IS250, IS300 & IS350 -> Fuel System Pressure Relief -> Removal & Installation
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
Fuel System Pressure Relief
- Remove the rear seat cushion.
- Remove the carpeting to access floor service hole cover.
- Disconnect the fuel pump electrical connector.
- Start the engine and let it idle until it stalls, then turn ignition OFF.
- Disconnect the battery ground cable.
Removal & Installation
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injur...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR Lexus IS300 AUTOMOBILES
Includes CV axle, universal joint, and driveline replacement, for domestic and imported Lexus IS300 cars and light trucks from 1990+.
DRIVESHAFT, Replace -> Rear
Vehicle: 2002 Lexus IS300 3.0 L6 GAS
Rear
- Raise vehicle off ground and support it with safety stands in proper locations.
- Remove engine undercovers.
- Remove rear floor board.
- Remove bolts and nuts securing front exhaust pipe assembly.
- Disconnect heated oxygen sensor.
- Remove five bolts and pipe support bracket, retainer and nut from exhaust manifold.
- Disconnect the exhaust pipe assembly from four rings.
- Remove exhaust pipe assembly.
- Remove two gaskets from exhaust pipe assembly.
- Make a reference mark across driveline and differential companion flange.
- Remove bolts, washer, and nuts from companion flange.
- Remove center suppor...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR Lexus IS300 AUTOMOBILES
Includes starter and alternator replacement procedures for domestic and imported Lexus IS300 cars and light trucks from 1990+.
Starter, Replace
Vehicle: 2004 Lexus IS300 Sportcross 3.0 L6 GAS
- Disconnect battery ground cable.
- Remove rubber cap and nut, then disconnect starter wire.
- Disconnect starter connec...
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CABIN AIR FILTER LOCATIONS & REPLACEMENT PROCEDURES FOR Lexus IS300 AUTOMOBILES
Cabin air filter locations and replacement procedures with corresponding images for most domestic and imported Lexus IS300 cars and light trucks sold in the U.S. as equipped to the current model year.
Cabin Air Filter Service -> Lexus -> 2001-05 IS300
Vehicle: 2003 Lexus IS300 3.0 L6 GAS
The cabin air filter should be replaced every 22,500 miles or 18 months. In dusty areas change the cabin air filter more often.
- Open the glove compartment.
- Remove the two pins securing the glove compartment to the instrument panel, then the glove compartment.
- Thr...
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MAINTENANCE LAMP RESET PROCEDURES FOR Lexus IS300 AUTOMOBILES
Maintenance lamp reset procedures with corresponding images for most domestic and imported Lexus IS300 cars and light trucks sold in the U.S. from 1990+.
Lexus -> Low Coolant Lamp ->
Vehicle: 2001 Lexus IS300 3.0 L6 GAS
This lamp will be illuminated when the coolant level in the radiator drops below a pre-determined point. To reset the lamp, bring the c...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR Lexus IS300 AUTOMOBILES
Includes radiator, cooling and heater hose replacement procedures for domestic and imported Lexus IS300 cars and light trucks from 1990+
Heater Hose, Replace -> Inlet -> Outlet
Vehicle: 2004 Lexus IS300 Sportcross 3.0 L6 GAS
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SERPENTINE BELT SERVICE PROCEDURES FOR Lexus IS300 AUTOMOBILES
Serpentine belt replacement procedures with corresponding images for most domestic and imported Lexus IS300 cars and light trucks sold in the U.S. from 1990+.
Serpentine Drive Belt, Replace
Vehicle: 2005 Lexus IS300 3.0 L6 GAS
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COMPONENT LOCATION DIAGRAMS FOR Lexus IS300 AUTOMOBILES
Component location diagrams for most Lexus IS300 cars and light trucks sold in the U.S. from 1990+.
 Back-Up Light System Components Diagram for 2005 Lexus IS300 3.0 L6 GASComponents on diagram: |
 Ignition Switch and Key Unlock Warning Switch Diagram for 2005 Lexus IS300 Sportcross 3.0 L6 GASComponents on diagram: |
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WIRING DIAGRAMS FOR Lexus IS300 AUTOMOBILES
OEM drawn wiring diagrams for most Lexus IS300 cars and light trucks sold in the U.S.
 2001 Lexus IS300 3.0 L6 GAS Wiring DiagramComponents on diagram: |
 2003 Lexus IS300 Sportcross 3.0 L6 GAS Wiring DiagramComponents on diagram: |
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TECHNICAL SERVICE BULLETINS FOR Lexus IS300 AUTOMOBILES
OEM TSB listings for most Lexus IS300 cars and light trucks sold in the U.S. from 1985+.
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Document: COMPASS IMPROVEMENT - INOPERATIVE OR SHOWS "--" Vehicle: 2001 Lexus IS300 3.0 L6 GAS Symptoms: |
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Document: HVAC CONTROL PANEL PEELING (HEATER CONTROL HOUSING SUB-ASSEMBLY) Vehicle: 2002 Lexus IS300 3.0 L6 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR Lexus IS300 AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most Lexus IS300 cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most Lexus IS300 cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most Lexus IS300 cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most Lexus IS300 cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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