2003 Toyota Tacoma A/C & Heater Service (ONLINE REPAIR MANUALS)

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Get Full Access Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Toyota Tacoma car and truck repair procedures including Toyota 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 Toyota Tacoma automobile. Try the Automotix DIY solution today!
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We have info for following modifications of 2003 Toyota Tacoma

  • 2003 Toyota Tacoma 2.7 L4 GAS, CC:2694, Fuel Injection
  • 2003 Toyota Tacoma 3.4 V6 GAS, CC:3378, Fuel Injection
  • 2003 Toyota Tacoma 2.4 L4 GAS, CC:2438, Fuel Injection

A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma 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 Toyota Tacoma cars and light trucks from 1990+

Toyota -> Manual Air Conditioning & Heater System Diagnosis & Testing -> Precautions -> Air Bag System Disarming & Arming -> Audio Coded Anti-Theft System -> Battery Ground Cable -> Product Compatibility
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS

Air Bag System Disarming & Arming

Refer to and for air bag system disarming and arming procedures.

Audio Coded Anti-Theft System

Some models are equipped with an audio coded anti-theft system that will disable the radio when the battery cable is disconnected. The system can be identified by the "ANTI-THEFT SYSTEM" on the cassette tape lid. Obtain 3-digit customer code for input. Reset system after service as follows:

  • Obtain 3-digit audio anti-theft code.
  • Depress 1 (PROG) while depressing righthand side of TUNE SEEK button. - - - will ap...

CLICK HERE TO GET FULL ACCESS TO 2003 Toyota Tacoma A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma 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 Toyota Tacoma cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2003 Toyota Tacoma 2.7 L4 GAS

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CLICK HERE TO GET FULL ACCESS TO 2003 Toyota Tacoma A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma 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 Toyota Tacoma cars and light trucks from 1990+

Toyota -> Electric Cooling Fans -> Troubleshooting -> 1MZ-FE -> 2AZ-FE -> 2AZ-FE Engine -> 5S-FE Engine -> Avalon, Camry & Camry Solara w/1MZ-FE Engine -> Camry & Camry Solara -> Celica -> Condenser Fan -> Condenser Fan On-Vehicle Inspection -> Cooling Fan -> Cooling Fan Inspection -> Cooling Fan On-Vehicle Inspection -> Cooling Fan Relay Inspection -> Cooling Fans Inspection -> Corolla & Corolla Matrix -> Echo -> Highlander -> MR2 -> No. 1 Cooling Fan Motor Inspection -> No. 2 Cooling Fan Motor Inspection -> On-Vehicle Inspection -> RAV4 -> Sienna
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS

Avalon, Camry & Camry Solara w/1MZ-FE Engine

On-Vehicle Inspection
Condenser Fan
  • Inspect condenser fan operation with temperature below 190°F as follows:
    • Connect manifold gauge set to high and low sides of system.
    • Start engine.
    • Turn blower speed to HI, temperature control dial to COOL and A/C switch On.
    • Ensure refrigerant pressure is less than 220 psi.
    • Ensure cooling fan operates at low speed.
  • Connect condenser fan motor electrical connector, then inspect cooling fan operation with high tempera...

CLICK HERE TO GET FULL ACCESS TO 2003 Toyota Tacoma A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma 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 Toyota Tacoma cars and light trucks from 1990+

Imported Cars & Light Trucks & Vans -> 2003-04 -> Leak Test -> Electronic Leak Detectors -> Fluid Leak Detectors
Vehicle: 2003 Toyota Tacoma 3.4 V6 GAS

Testing the refrigerant system for leaks is one of the most important phases of troubleshooting. One or more of the methods outlined will prove useful in detecting leaks or checking connections if service work is performed. Before beginning any leak test, attach a manifold gauge set and note pressure. If little or no pressure is indicated, a partial charge must be installed. Check all connections, compressor head gasket, oil filler plug and compressor shaft seal for leaks.

R-12 leak detectors will not detect R-134a leaks. For R-134a system an electronic type leak detector i...

CLICK HERE TO GET FULL ACCESS TO 2003 Toyota Tacoma A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma 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 Toyota Tacoma cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2003 Toyota Tacoma 2.4 L4 GAS

[[table data]] [[table data]]

CLICK HERE TO GET FULL ACCESS TO 2003 Toyota Tacoma A/C & HEATER SERVICE PROCEDURES

A/C & HEATER SERVICE PROCEDURES FOR 2003 Toyota Tacoma 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 Toyota Tacoma cars and light trucks from 1990+

Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Imported Vehicles
Vehicle: 2003 Toyota Tacoma 2.7 L4 GAS

[[table data]] [[table data]]

CLICK HERE TO GET FULL ACCESS TO 2003 Toyota Tacoma A/C & HEATER SERVICE PROCEDURES

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