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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Lexus RX300 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 2003 Lexus RX300 automobile. Try the Automotix DIY solution today!
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus RX300 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 2003 Lexus RX300 cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2003 Lexus RX300 3.0 V6 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus RX300 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus RX300 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 2003 Lexus RX300 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 RX300 3.0 V6 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...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus RX300 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus RX300 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 2003 Lexus RX300 cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Electrical Symbol Identification -> Imported Vehicles
Vehicle: 2003 Lexus RX300 3.0 V6 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus RX300 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus RX300 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 2003 Lexus RX300 cars and light trucks from 1990+
Lexus -> Component Replacement & Adjustment -> Blower Motor, Replace -> ES 300 & ES 330 -> GS 300, GS 430, LS 430 & SC 430 -> GX 470 -> IS 300 -> LX 470 -> RX 300 & RX 330
Vehicle: 2003 Lexus RX300 3.0 V6 GAS
ES 300 & ES 330
- Remove righthand door scuff plate, Fig. .
- Disengage instrument panel under cover sub-assy No. 1 retaining clips, then disconnect electrical connector.
- Pull instrument panel under cover sub-assy No. 1 from under righthand side of instrument panel.
- Remove instrument panel sub-assy lower attaching screws and bolts, then the sub-assy lower from under righthand side of instrument panel.
- Disconnect blower motor electrical connectors.
- Remove blower motor retaining screws, then the blower motor.
- Reverse procedure to insta...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus RX300 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus RX300 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 2003 Lexus RX300 cars and light trucks from 1990+
Lexus -> Component Replacement & Adjustment -> Instrument Panel, Replace -> ES 300 & ES 330 -> GS 300 & GS 430 -> GX 470 -> IS 300 -> LS 430 -> LX 470 -> RX 300 & RX 330 -> SC 430
Vehicle: 2003 Lexus RX300 3.0 V6 GAS
ES 300 & ES 330
- Remove front pillar garnish, front inside scuff plate, and front door opening cover, Fig. .
- Remove cowl side trim.
- Loosen screws from wheel pad, Fig. . Pull wheel pad out and disconnect air bag connector. Store air bag face up.
- Remove steering wheel retaining nut and disconnect connector, Fig. . Place scribe marks on steering wheel and shaft, then remove steering wheel using steering wheel- puller tool No. 0921331021, or equivalent.
- Remove safety pad No. 2 as follows:
- Remove two screws and hood lock release ...
CLICK HERE TO GET FULL ACCESS TO 2003 Lexus RX300 A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Lexus RX300 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 2003 Lexus RX300 cars and light trucks from 1990+
Air Bag System Precautions -> Lexus -> Disarming
Vehicle: 2003 Lexus RX300 3.0 V6 GAS
For Lexus LX 450 & LX 470 Information, Refer to "Land Cruiser" In "Toyota."
The Air Bag/Supplemental Restraint System (SRS) incorporates a back-up energy source that maintains sufficient deployment voltage for up to 90 seconds after the ignition is turned Off and the battery has been disconnected.
When the battery ground cable is disconnected, audio, clock and seat memory system will be canceled.
- Note radio station settings...
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