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Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Jeep Wrangler car and truck
repair procedures including Jeep 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 Jeep Wrangler automobile. Try the Automotix DIY solution today!
We have info for following modifications of 2003 Jeep Wrangler
- 2003 Jeep Wrangler Sahara 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 2003 Jeep Wrangler SE 2.4 L4 GAS, CID:148, Fuel Injection, Aspiration:148, Engine VIN:, Desg:1
- 2003 Jeep Wrangler Sport 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 2003 Jeep Wrangler X 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
- 2003 Jeep Wrangler Rubicon 4.0 L6 GAS, CID:242, Fuel Injection, Aspiration:242, Engine VIN:, Desg:S
A/C & HEATER SERVICE PROCEDURES FOR 2003 Jeep Wrangler 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 Jeep Wrangler cars and light trucks from 1990+
Compressor Service -> Denso 10PA17 Compressor -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Product Compatibility
Vehicle: 2003 Jeep Wrangler SE 2.4 L4 GAS
Air Bag System Disarming & Arming
Refer to and for air bag system disarming and arming procedures.
Product Compatibility
Before replenishing refrigerant oil, ensur...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Jeep Wrangler 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 Jeep Wrangler cars and light trucks from 1990+
Air Bag System Precautions -> DaimlerChrysler -> Arming -> 1990-97 -> 1994-96 Cherokee -> 1998-2004 -> Except 1994-96 Cherokee -> Light Truck & Vans -> Passenger Cars
Vehicle: 2003 Jeep Wrangler Rubicon 4.0 L6 GAS
Passenger Cars
1990-97
- Ensure no one is inside vehicle and ignition switch is in Lock position.
- Connect battery ground cable.
- Turn ignition switch to On position from passenger side of vehicle.
- The SRS warning lamp should light for six to eight seconds, then remain off for at least 45 seconds to indicate if SRS is functioning properly.
1998-2004
- Ensure no one is inside vehicle and ignition switch is in Lock position.
- Connect battery ground or remote cable or terminal.
- Turn ignition On from a safe position be...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Jeep Wrangler 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 Jeep Wrangler cars and light trucks from 1990+
Electrical Symbol & Wire Color Code Identification -> Wire Color Code Identification -> Domestic Vehicles
Vehicle: 2003 Jeep Wrangler Sahara 4.0 L6 GAS
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Jeep Wrangler 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 Jeep Wrangler cars and light trucks from 1990+
Cooling Fans -> Light Trucks & Vans -> Diagnosis & Testing -> Accessing Diagnostic Trouble Codes (DTCs) -> Caravan, Town & Country & Voyager -> Clearing Diagnostic Trouble Codes (DTCs) -> Dakota & Durango -> Fan Control Relay -> Fan Motor -> Fan Motor Circuit -> Grand Cherokee -> Liberty -> Pacifica -> PT Cruiser
Vehicle: 2003 Jeep Wrangler Rubicon 4.0 L6 GAS
Fan Motor
Caravan, Town & Country & Voyager
Refer to Fig. , for fan motor diagnosis chart.
Fan Motor Circuit
All models are equipped with an engine controller which will detect and store a diagnostic trouble code for the cooling fan system. This information may be accessed by using a DRB diagnostic tool.
Accessing Diagnostic Trouble Codes (DTCs)
Connect suitable DRB lll scan tool to Data Link Connector (DLC), follow manufacturers instructions to access diagnostic trouble codes and procedures.
Clearing Diagnostic Trouble Code...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Jeep Wrangler 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 Jeep Wrangler cars and light trucks from 1990+
Manual Air Conditioning & Heater System Diagnosis & Testing -> Wrangler -> Precautions -> Air Bag System Disarming & Arming -> Battery Ground Cable -> Product Compatibility
Vehicle: 2003 Jeep Wrangler X 4.0 L6 GAS
Air Bag System Disarming & Arming
Refer to and for air bag system disarming and arming procedures.
Product Compatibility
Before replenishing refrigerant or refrigerant oi...
CLICK HERE TO GET FULL ACCESS TO 2003 Jeep Wrangler A/C & HEATER SERVICE PROCEDURES
A/C & HEATER SERVICE PROCEDURES FOR 2003 Jeep Wrangler 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 Jeep Wrangler cars and light trucks from 1990+
Air Bag System Precautions -> DaimlerChrysler -> Disarming -> 1990-97 -> 1994-96 Cherokee -> 1998-2004 -> Except 1994-96 Cherokee -> Light Trucks & Vans -> Passenger Cars
Vehicle: 2003 Jeep Wrangler SE 2.4 L4 GAS
Passenger Cars
1990-97
It may be required to access and record all Diagnostic Trouble Codes (DTCs) prior to disarming the air bag system.
- Place ignition switch in Lock position.
- Disconnect and isolate battery ground cable.
- Wait at least two minutes after disconnecting battery ground cable before doing any further work on vehicle. The air bag system is designed to retain enough voltage to deploy air bags for a short time even after battery has been disconnected.
1998-2004
It may be required to access and rec...
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