20 Best 2003 Jeep Wrangler Wiring Diagram of 2023 – Romance University

After hours researching and comparing all models on the market, Romance University finds out the Best 2003 Jeep Wrangler Wiring Diagram of 2023. Check our ranking below.

2,188 Reviews Scanned

Rank No. #1

Scosche CR02BCB Compatible with 2002-07 Chrysler, Dodge, Jeep, Plymouth Power/Speaker Connector / Wire Harness for Aftermarket Stereo Installation with Color Coded Wires and Pre-installed Wire Connectors

Connects to the factory stereo harnesses when installing an aftermarket stereo. Not compatible with factory amplified systems
Pre terminated with butt connectors to save install time
Direct Connection to the factory harness without cutting any wires
Manufactured with factory quality wire and connectors
EIA industry standard color coded wires for an easier installation

Rank No. #2

Jeep Wrangler 4-cyl & 6-cyl, 2WD & 4WD (87-17) Haynes Manual USA (Paperback)

Jeep Wrangler 4-cyl & 6-cyl Gas Engine, 2WD & 4WD Models (87-17) Haynes Repair Manual
Haynes Publishing (Author)
English (Publication Language)
464 Pages - 05/01/2018 (Publication Date) - Haynes Manuals N. America, Inc. (Publisher)

Rank No. #3

Nilight 200PCS Heat Shrink Butt Connectors – Waterproof Wire Connectors - Automotive Marine Grade Electrical Terminals – Crimp Butt Splice Terminal Kit ,2 years Warranty

High quality polyamide cover outside and Red cooper tube inside allow the connectors to Bear high temperature and also has a good ability to conduct electricity
Waterproof nylon hot-melt adhesive with waterproof gel provides excellent waterproof performance, can be a good connector used in marine and Automotive applications
Universal type three size options can be used to connect the wires range from 22awg-10awg, 90 PCs Red for 22awg-16awg wires, 90 PCs Blue for 16awg-14awg wires, 20 PCs yellow for 12awg-10awg wires;
Wire contact Red Copper barrel design increased current flow, and ensures voltage Drop, preventing wiring failures and reducing equipment quit working
Easy identification: Color tube with wire gauge imprint makes it easy to identify the right size of the connector for every application. 2 Year Warranty by Nilight.

Rank No. #4

Chilton Total Car Care Jeep Wrangler 1987-2011 Repair Manual (Chilton's Total Care)

Step-by-step procedures linked to over 700 easy-to-follow photos and illustrations
Complete troubleshooting section helps identify specific problems
Written from hand-on experience based on a vehicle teardown and rebuild using commonly available tools
Tips give valuable short cuts to make the job easier and eliminate the need for special tools
Color spark plug diagnosis

Rank No. #5

Nilight 130 Pcs 3:1 Heat Shrink Tubing Kit Dual Wall Adhesive Sleeve Tube Electrical Wire Cable Wrap Tube Assortment with Storage Case for DIY

Premium Quality Heat Shrink Tubing: Soft and flexible wire shrink wrap, multiple sizes premium quality heat shrink tubing for you to choose. Make sure temperature of your heat gun is up to 100°C, then glue inside will soften and seal the connection.
Effective & Long Lasting Protection: Our heat shrink tubing has the advantages of good insulation, good tightness and corrosion resistance, high temperature resistance and durable. Also works well for protecting headphones and phone cables.
Fast & Easy Use: Our heat shrink tubing can give you a tidy connection. It is 3: 1 heat shrink ratio, and will shrink up to 1/3 of original, only use a lighter heating if the tube is small or hair dryer heating for large one. Also includes handy plastic container for easy storage.
Safe & : Heat shrink tubing material composition does not contain heavy metal and other environmentally hazardous substances. No slowly or long-term virulence. No need to worry about your health when using the heat shrink wrap.
Package Includes: Dia: 1/2"(7pcs), 3/8"(8pcs), 1/4"(15pcs), 3/16"(20pcs), 1/8"(35pcs), 3/32"(45pcs). All packed in a plastic case for easy storage.

SaleRank No. #6

Curt Manufacturing 55363 Vehicle-Side Custom 4-Pin Trailer Wiring Harness,Fits Select Jeep Wrangler TJ

EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle
VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Jeep Wrangler TJ
EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. It features tabs on the top and bottom for a better grip when plugging into your trailer or unplugging
DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements

Rank No. #7

RED WOLF 12 Volt Power Adapter Wiring Harness Switch Connector Plug w/Fuse for Chrysler Dodge Ram 2001-2022 Power Outlet to Add Backup Camera CB Radio Radar Detectors Portable GPS

12 volt power wire connector compatible with 2001-2022 Chrysler 300, 2008-2020 300C, 2004-2021 Chrysler Pacifica, 2004-2021 Chrysler Voyager. 2001-2016 Chrysler Town & Country. 2001-2020 Ram 1500 2500 3500. 2008-2021 Dodge Challenger, 2007-2021 Dodge Charger, 2009-2020 Dodge Journey.
Multipurpose. Add 12 Volt Power accessory like CB radios, radar detectors, portable GPS, satellite radios, auxiliary lighting backup camera or power air horn and some gauge lights. Eliminating the need to splice or solder factory wiring.
A fuse is included, which is a plus. It Protect circuit and lengthen the wire long enough to stretch from the cigarette lighter to the back of the radio.
Plug-n-play accessory install. Custom design adapter, plug in factory power outlet easily to tap into the power from the cigte lighter.
The best way to tap into 12v power. There is a switched ignition lead available to tap into is located behind the lower dash power port. In here you can safely add switched accessory without causing damage to factory wire harness or electrical system.

SaleRank No. #8

Nilight - 50025R 50pcs Solder Seal Wire Connector, Solder Seal Heat Shrink Butt Connectors,Electrical Waterproof Insulated Marine Automotive Copper(23Red 12Blue 10White 5Yellow),2 Years Warranty

Easy to identify and operate - Different colors correspond to different sizes, easy to pick up for use. Transparent sleeve provides precise inspection when strip and insert wires inside.
More Effective Way -1 Step solder and seal process for all your connections,insulated and sealed.
Waterproof:Unique double-wall design, external polyolefin pipe, built-in hot melt adhesive.When heated, the polyolefin tube shrinks in size and the adhesive flows through the insulation.Double wall tubing ensures watertight seal to prevent wire corrosion
No Slip Wire Contact - Tubing reduces in size and solder will melt and flow through the stripped wires, ensure strong holding --- your wire will never slip out of the connector. Can be ideal used in marine and automobile applications
Package include:50 pcs Solder Seal Wire Connector,23 pcs Red,12pcs Blue, 10pcs White, 5 pcsYellow

Rank No. #9

Haynes Manuals N. America, Inc. Jeep Grand Cherokee 1993-2004

Step-by-step procedures linked to over 700 easy-to-follow photos and illustrations
Complete troubleshooting section helps identify specific problems
Written from hand-on experience based on a vehicle teardown and rebuild using commonly available tools
Tips give valuable short cuts to make the job easier and eliminate the need for special tools
700 b/w photos

Rank No. #10

RED WOLF Adjust DC 12V to 3.3V 5V 6V 9V DC Step Down Converter Power Supply Voltage Adapter Reducer Regulator Fit for Vehicles Accessories Devices Backup Camera Radio

RED WOLF Voltage Step Down Switcher Harness work as input 12V-14V but finally output 3.3V 5V 6V 9V to meet your car devices install need. Won't work for wider Voltage.
Total 4 kinds of output voltage are available. There are 3 voltage slot representing 3.3V 5V 6V 9V power. It can be switch to your desired voltage output.
The DC-DC converter is widely used in Vehicles electronic systems. Such as to power factory camera or to Remove Popping noise for Ford Mustang Lincoln when install aftermarket radio stereo, Install dash cam, CB or power other car Accessories Devices.
Made of professional electrical level copper wire materials, Strong conductivity. Prevent Car equipment from damage due to over voltage, Short-circuit.
Easy installation. Only 4 wires are need to be connected. Wiring diagram is included in the package. Input voltage range DC12V-DC14V. Output DC 12V to 3.3V, DC12V to 5V, DC12V to 6V, 12V to 9V.

SaleRank No. #11

Nilight 10011W 16AWG Wiring Harness Kit-2 Leads LED Light Bar 12V On/Off 5 Pin Rocker Switch Power Relay Blade Fuse for Jeep Boat Trucks, 2 Years Warranty

Two Available leads: 12 feet extendable wiring harness, two Sets of light output connectors for dual light fixtures less than 180W
Efficient protection: power relay and inline blade fuse ACT as the first Line of defense against overcurrent and short circuit
Shining in the dark: built-in two premium LEDs emit soft light to illuminate the patterns, easy for you to find the switch in the dark
Wide application: suitable for almost all 12V battery vehicles, such as jeeps, ATVs, UTVs, cars, motorcycles, ships, yachts and trailers
Package include: 1 x wiring harness kit, 1 x 5 pin LED rocker switch, 1 x instructions

SaleRank No. #12

Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade Fuse for Off Road Lights Work Light, 2 Years Warranty,Black

Universal fit: Compatible with all automobiles, boats and devices equipped with a 12 volt power source
Circuit protection: Power relay-safety protection and conversion circuit. Blade fuse protects the circuit when overcurrent or short circuit occurs.
Illuminated switch: 3 pin on/off rocker switch with red indicator light when truing on, easy to turn on or off, has been passed test of 5,000 times pressing.
Two available leads: With 2 sets of light output connectors for dual lighting fixtures less than 180W, the connection is more stable.
Package include:1 x wiring harness kit, 1 x instructions.

Rank No. #13

Jeep CJ, Scrambler, Renegade. Laredo & Golden Eagle (49-86) Haynes Repair Manual (Haynes Repair Manuals) [Paperback] Larry Warren and John H. Haynes

Haynes Jeep CJ (49 - 86) Manual (50020)
Larry Warren (Author)
English (Publication Language)
337 Pages - 01/15/1999 (Publication Date) - Haynes Manuals N. America, Inc. (Publisher)

SaleRank No. #14

Nilight 16AWG LED Light Bar Wiring Harness Kit 2 Leads 12V On/Off 5 Pin Rocker Switch Power Relay Blade Fuse for Jeep Boat Trucks

Two Available leads: 12 feet extendable wiring harness, two Sets of light output connectors for dual light fixtures less than 180W
Efficient protection: power relay and inline blade fuse ACT as the first Line of defense against overcurrent and short circuit
Shining in the dark: built-in two premium LEDs emit soft light to illuminate the patterns, easy for you to find the switch in the dark
Wide application: suitable for almost all 12V battery vehicles, such as jeeps, ATVs, UTVs, cars, motorcycles, ships, yachts and trailers
Package include: 1 x wiring harness kit, 1 x 5 pin LED rocker switch, 1 x instructions, 2 Years Warranty Honored by Nilight

SaleRank No. #15

Nilight LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On Off Waterproof Switch Power Relay Blade Fuse-2 Lead (10038W)

Universal fitment this wiring harness is compatible with all automobiles, boats and devices equipped with a 12V DC power source
Great switch built-in two premium LEDs emit soft light to illuminate the patterns easy for you to find the switch in the dark
Efficient protection, power relay for safety protection and conversion circuit blade fuse protected against overcurrent and short circuit
Premium quality, excellent electrical conductivity outstanding bending performance, high temperature and melting resistant longer lifespan
Package includes 1 x wiring harness kit 1 x 5 pin LED rocker switch 1 x instructions, 2 Years Warranty Honored by Nilight

SaleRank No. #16

Nilight Led Light Bar Wiring Harness Kit 16AWG 12V On Off Waterproof Switch Power Relay Blade Fuse-4 Leads

Universal fit compatible with all automobiles boats and devices equipped with a 12V power source
Illuminated Switch 3 pin on/off rocker switch with red indicator light when truing on easy to turn on or off has been passed test of 5 000 times pressing
Recommended With The best match is a side-by-side small light group If you install another light you will need an extension cord
Circuit Protection Power relay-safety protection and conversion circuit Blade fuse protects the circuit when overcurrent or short circuit occurs
Package Include 1 x Wiring Harness Kit 1 x Instructions, 2 Years Warranty Honored by Nilight

Rank No. #17

Nilight 10014W LED Light Bar Wiring Harness Kit 14AWG Heavy Duty 12V 5Pin Rocker Laser On Off Waterproof Switch Power Relay Blade Fuse-1 Lead, 2 Years Warranty

Premium quality: Excellent electrical conductivity, outstanding bending performance, high temperature and melting resistant, longer lifespan
Protective blade fuse: Inline blade fuse prevents from overcurrent or short circuit. Three extra fuses, more scientific and reasonable
Reliable power relay: Made of advanced materials and well conductive pins to ensure safety protection and conversion circuit
Durable switch: High quality 5 pin on-off rocker switch with laser-etched pattern, simple to install and convenient to use
Package include: 1 x wiring harness kit, 1 x 5 pin LED rocker switch, 1 x instruction

SaleRank No. #18

Nilight - 10013W NI -WA 07 LED Light Bar Wiring Harness Kit SASQUATCH LIGHTS 12V 5Pin Rocker Laser On off Waterproof Switch Power Relay Blade Fuse-2 Lead,2 Years Warranty

Two Available leads 12 feet extendable wiring harness two Sets of light output connectors for dual light fixtures less than 180W
Efficient protection power relay and inline blade fuse ACT as the first Line of defense against overcurrent and short circuit
Shining in the dark built-in two premium LEDs emit soft light to illuminate the patterns easy for you to find the switch in the dark
Wide application suitable for almost all 12V battery vehicles such as jeeps ATVs UTVs cars motorcycles ships yachts and trailers
Package include 1 x wiring harness kit 1 x 5 pin LED rocker switch 1 x instructions, 2 Years Warranty Honored by Nilight

SaleRank No. #19

Nilight Wiring Harness Kit 14AWG Heavy Duty 12V On-Off Switch Power Relay Blade Fuse for Off Road LED Work Light Bar-ONE Lead,2 Years Warranty

Universal fitment: the wiring harness is compatible with all automobiles, boats and devices equipped with a 12V DC power source
12 feet harness: 12ft heavy-duty harness, 14-gauge stranded wire, up to 380W load capacity, the length from relay to switch is extendable
Illuminated switch: 3 pin on/off rocker switch with Red Indicator light when truing on, easy to turn on or off, long service life
Package include: 1 x 12 feet wiring harness, 1 x instructions
Package include: 1 x 12 feet wiring harness, 1 x instructions,2 Years Warranty Honored by Nilight

Rank No. #20

Nilight 14AWG Wiring Harness Kit - 1 Lead Heavy Duty 12V On-Off Switch Power 40 Amp Relay Blade Fuse for Off Road LED Work Light Bar, White

DURABLE SWITCH: Newly upgraded rocker switch, 5,000 times pressing after testing. The thickened white plastic makes the switch more durable.
SUPERIOR QUALITY WIRES: Good electrical conductivity, high temperature and melting resistant, outstanding bending performance.
CIRCUIT PROTECTION: Power relay-safety protection and conversion circuit. Blade fuse protects the circuit when overcurrent or short circuit occurs.
EASY CONTROL: You can easily turn on or off the light with the flexible rocker switch (On/Off).
PACKAGE INCLUDE: 1 x Wiring Harness, 1 x 12V DC/40A Power Relay, 1 x 30A Blade Fuse, 1 x Rocker Switch

Last update on 2023-08-18 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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20 Best 2003 Jeep Wrangler Wiring Diagram of 2023 – Romance University

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