Auto User Guide

2019 Jeep Wrangler Fuses and Fuse Box | Replacing a blown fuse

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2019 Jeep Wrangler Fuses and Fuse Box | Replacing a blown fuse

The 2019 Jeep Wrangler comes with a comprehensive electrical system that powers a variety of features and accessories. To protect these systems, the vehicle is outfitted with a fuse box containing a series of fuses. Fuses are protective devices that interrupt the flow of electrical current in the event of a fault, preventing damage to the connected components. If you notice that a specific function in your Jeep Wrangler is not working, such as lights, power windows, or other electrical features, it’s possible that a fuse in that system has blown. This guide will walk you through the steps of identifying and replacing a blown fuse in your 2019 Jeep Wrangler.

Remember that fuses are critical safety components, and you must replace them with the correct amperage rating. Using a fuse with a higher rating can result in electrical damage or even fire. Following these steps will allow you to efficiently replace a blown fuse in your 2019 Jeep Wrangler and restore functionality to the affected electrical system. If you run into problems or the problem persists after replacing the fuse, it’s best to seek professional help to ensure accurate diagnosis and resolution.

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Fuses and Fuse Box

Center High-Mounted Stop Lamp (CHMSL)

The stop lamp is mounted on a bracket that extends upward from the tailgate behind the spare tire. If service is needed, obtain the LED Assembly from an authorized dealer.

  1. Remove the spare tire.
  2. Remove the screws holding the tire carrier cover.
  3. Remove two screws from lamp assembly and disconnect the electrical connector.

License Plate Lamps
See an authorized dealer to replace these LED assemblies.

FUSES

WARNING!

  • When replacing a blown fuse, always use an appropriate replacement fuse with the same amp rating as the original fuse. Never replace a fuse with another fuse of higher amp rating. Never replace a blown fuse with metal wires or any other material. Failure to use proper fuses may result in serious personal injury, fire and/or property damage.
  • Before replacing a fuse, make sure that the ignition i s off and that all the other services are switched off and/or disengaged.
  • If the replaced fuse blows again, contact an authorized dealer.
  • If a general protection fuse for safety systems (air bag system, braking system), power unit systems (engine system, gearbox system) or steering system blows, contact an authorized dealer.

General Information
The fuses protect electrical systems against excessive current.
When a device does not work, you must check the fuse element inside the blade fuse for a break/melt.

Also, please be aware that when using power outlets for extended periods of time with the engine off may result in vehicle battery discharge.

2019 Jeep Wrangler Fuses and Fuse Box 02

  1. Fuse Element
  2. Blade Fuse with a good/functional fuse element.
  3. Blade fuse with a NOT functional / BAD fuse element (blown fuse).

Power Distribution Center (PDC)
The Power Distribution Center is located in the engine compartment near the battery. This center contains cartridge fuses, mini fuses, and relays. The PDC top cover is labelled with each serviceable fuse/relay location, function, and size.

2019 Jeep Wrangler Fuses and Fuse Box 01

Cavity

Cartridge Fuse

Micro Fuse

Description

F01

Spare

F02

40 Amp Green

Starter

F03

5 Amp Tan

Intelligent Battery Sensor (IBS)

Cavity

Cartridge Fuse

Micro Fuse

Description

F04

20 Amp Yellow

Fuel Pump MTR/FPCM

F05

5 Amp Tan

Security Gateway

F06

 

Spare

F07

15 Amp Blue

Low Temp Radiator Cooling Pump (LTR) — If Equipped

F08

15 Amp Blue

Trans Control Module TCM-8HP CYGNUS

F09

Spare

F10

15 Amp Blue

Key Ignition Node (KIN)/Radio Frequency Hub (RF HUB)/Electric Steering Column Lock (ESCL)

F11

10 Amp Red

UCI Port (USB & AUX)

F12

25 Amp Clear

HIFI Amplifier

F13

Spare

F14

Spare

F15

15 Amp Blue

Instrument Panel Cluster (IPC)/Switch Bank-Heavy Duty Electrical Pkg (SWITCH BANK-HD ELEC)

F16

Spare

F17

Spare

F18

10 Amp Red

Air Conditioning Clutch (AC CLUTCH)

F19

Spare

F20

30 Amp Pink

Central Body Controller (CBC) 1-INTERIOR LIGHTS

Cavity

Cartridge Fuse

Micro Fuse

Description

F21

20 Amp Yellow

REAR WIPER

F22

 

10 Amp Red

Engine Control Module (ECM)/Powertrain Control Module (PCM)/Motor Generator Unit (MGU) WAKE UP/Power Pack Unit (PPU) WAKE UP

F23

10 Amp Red

Powertrain Control Module (PCM)/Engine Control Module (ECM)

F24

Spare

F25

10 Amp Red

Module Shift By Wire (MOD_SBW)

F26

40 Amp Green

Central Body Controller (CBC) 2-EXTERIOR LIGHTS #1

F27

30 Amp Pink

Front Wipers

F28

40 Amp Green

Central Body Controller (CBC) 3-POWER LOCKS

F29

40 Amp Green

Central Body Controller (CBC) 4-EXTERIOR LIGHTS #2

F30

Spare

F31

10 Amp Red

DIAGNOSTIC PORT

F32

 

10 Amp Red

Heating Ventilation Air Conditioning Mod (HVAC CTRL MOD)/Steering Column Lock (SCL)/Occupant Classification Module (OCM)/Driver Presence Detection Module (DPDM)

 

F33

 

 

10 Amp Red

ParkTronics System (PTS)/Infrared Camera Module (IRCM)/Airbag Disable Lamps (AIRBAG DISABLE LMPS)

Cavity

Cartridge Fuse

Micro Fuse

Description

F34

 

 

10 Amp Red

Electronic Stability Control (ESC)/Electric Hydraulic Power Steering (EHPS)/Smart Bar Control Module (SBCM) WAKE UP

F35

30 Amp Pink

BRAKE VAC PMP — If Equipped

F36

30 Amp Pink

TRAILER TOW MOD — If Equipped

F37

30 Amp Pink

TRAILER TOW CONN 7W — If Equipped

F38

20 Amp Blue

Engine Control Module ECM

F39

Spare

F40

15 Amp Blue

DriveTrain Control Module (DTCM)/Axle Lock (AXLE LOC) FT_RR

F41

15 Amp Blue

Instrument Cluster (IC)/Security GateWay (SGW) WAKE UP

F42

10 Amp Red

Power Control Relay Control Feed (Electric Stop/Start)/ Spare (Belt Starter Generator) — If Equipped

F43

20 Amp Yellow

PWR OUTLET (CARGO) BATT

F44

10 Amp Red

InfraRed Camera (IRCAM) HEATERS

F45

20 Amp Yellow

PWR OUTLET (CARGO) IGN*

F46

10 Amp Red

AUTO HDLP LVL MOD/LVL MTR/HDLP SW

F47

Spare

F48

Spare

Cavity

Cartridge Fuse

Micro Fuse

Description

F49

10 Amp Red

Occupant Restraint Controller ORC

F50

10 Amp Red

HD ACC — If Equipped

F51

10 Amp Red

Digital TV (DSRC)/USB/InSide RearView Mirror (ISRVM)/ Compass Module (CSGM)

F52

20 Amp Yellow

CIGAR LTR

F53

Spare

F54

Spare

F55

Spare

F56

10 Amp Red

IN-CAR TEMP SENSOR

F57

20 Amp Yellow

Frt Drvr Htd Seat

F58

20 Amp Yellow

Frt Pass Htd Seat

F59

Spare

F60

15 Amp Blue

Comfort Steering Wheel Module (CSWM) (HTD STR WHEEL)

F61

10 Amp Red

Left Blind Spot Sensor (LBSS)/Right Blind Spot Sensor (RBSS)

F62

Spare

F63

10 Amp Red

Occupant Restraint Controller (ORC)

F64

Spare

F65

Spare

Cavity

Cartridge Fuse

Micro Fuse

Description

F66

40 Amp Green

HVAC BLOWER MTR FRT

F67

Spare

F68

Spare

F69

5 Amp Tan

Motor Generator Unit MGU Belt Starter Generator (BSG)

— If Equipped

F70

25 Amp Clear

INJ/IGN COIL (GAS)/GLO PLUG MOD (DSL)

F71

Spare

F72

10 Amp Red

HD ELEC ACC PKG — If Equipped

F73

20 Amp Blue

PWR TOP LT

F74

20 Amp Blue

PWR TOP RT

 

F75

 

 

10 Amp Red

Power Pack Unit – Battery Pack Control Module & Auxiliary Power Module (PPU-BPCM & APM) Belt Starter Generator (BSG) — If Equipped

F76

20 Amp Yellow

ECM (GAS)/PCM (DSL)

F77

10 Amp Red

HTD MIRRORS

F78

10 Amp Red

COMP/INTRUSION/SIREN/INTRUSION SENSORS

F79

20 Amp Yellow

SMART BAR CTRL MOD

F80

15 Amp Blue

Powertrain Control Module (PCM)

F81

30 Amp Pink

REAR DEFROSTER (EBL)

Cavity

Cartridge Fuse

Micro Fuse

Description

F82

30 Amp Pink

FUEL HTR — If Equipped

F83

60 Amp Yellow

–-

GLOW PLUG — If Equipped

F84

30 Amp Pink

UREA HTR CTRL UNIT — If Equipped

F85

10 Amp Red

PM SENSOR — If Equipped

F86

30 Amp Pink

BRAKE VAC PMP 2 — If Equipped

F87

10 Amp Red

SUPPLY/PURGING PMP — If Equipped

F88

20 Amp Blue

NOx SENSOR #1/ #2 — IF Equipped

F89

10 Amp Red

Steering Column Control Module (SCCM)/ Cruise Control (CRUISE CTL)/Digital TV (DTV)

F90

20 Amp Blue

TRAILER TOW PARK LMP — If Equipped

F91

20 Amp Yellow

HORN

F92

40 Amp Green

HD ACCY #2 — If Equipped

F93

40 Amp Green

HD ACCY #1 — If Equipped

F94

10 Amp Red

Tire Pressure Monitor (TPM)/RF Hub system (CORAX)

F95

Spare

F96

10 Amp Red

PWR MIRROR SW

F97

20 Amp Yellow

RADIO/TBM

F98

10 Amp Red

SW BANK-HD ELEC/OFF ROAD

F99

Spare

Cavity

Cartridge Fuse

Micro Fuse

Description

F100

30 Amp Pink

ESC-ECU & VALVES

F101

30 Amp Pink

DriveTrain Control Module (DTCM)

F102

15 Amp Blue

DUAL USB PORT

F103

15 Amp Blue

HD ACCY #3 — If Equipped

F104

15 Amp Blue

PPU COOL PUMP — If Equipped

F105

10 Amp Red

Integrated Center Stack (ICS)/Heat Ventilation Air Conditioning (HVAC)

F106

40 Amp Green

Electronic Speed Control (ESC)-PUMP MTR

F107

20 Amp Yellow

TRAILER TOW STOP/TURN LT — If Equipped

F108

15 Amp Blue

HD ACCY #4 — If Equipped

F109

20 Amp Yellow

TRAILER TOW STOP/TURN RT — If Equipped

F110

30 Amp Pink

POWER INVERTER

F111

20 Amp Blue

TRAILER TOW BACKUP — If Equipped

 Customer can select to switch the Cargo Power Outlet from F43 battery fed power to this position F45 which is fed when the ignition in ON.

CAUTION!

  • When installing the power distribution center cover, i t is important to ensure the cover is properly positioned and fully latched. Failure to do so may allow water to get into the power distribution center and possibly result in an electrical system failure.
  • When replacing a blown fuse, it is important to us e only a fuse having the correct amperage rating. The us e of a fuse with a rating other than indicated may result in a dangerous electrical system overload. If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected.

JACKING AND TIRE CHANGING

WARNING!

  • Do not attempt to change a tire on the side of the vehicle close to moving traffic. Pull far enough off the road to avoid the danger of being hit when operating the jack or changing the wheel.
  • Being under a jacked-up vehicle is dangerous. Th e vehicle could slip off the jack and fall on you. You could be crushed. Never put any part of your bod y under a vehicle that is on a jack. If you need toget under a raised vehicle, take it to a service center where it can be raised on a lift.
  • Never start or run the engine while the vehicle is on a jack.
  • The jack is designed to be used as a tool for changing tires only. The jack should not be used to lift the vehicle for service purposes. The vehicle should be jacked on a firm level surface only. Avoid ice or slippery areas.

FAQs

What is the purpose of the fuse box in the 2019 Jeep Wrangler?

The fuse box in the 2019 Jeep Wrangler houses fuses that protect various electrical circuits from overloads and short circuits.

How many fuses are there in the 2019 Jeep Wrangler’s fuse box?

There are typically around 30 fuses in the 2019 Jeep Wrangler’s fuse box, but the exact number may vary depending on the trim level and optional features.

Where is the fuse box located in the 2019 Jeep Wrangler?

The fuse box is usually located in the engine compartment of the 2019 Jeep Wrangler.

How can I access the fuse box in my 2019 Jeep Wrangler?

To access the fuse box, you’ll need to open the hood of your Jeep and locate the fuse box cover. It’s essential to consult your owner’s manual for specific instructions.

What do the fuses in the 2019 Jeep Wrangler protect?

Fuses protect various electrical components, including lights, radio, power windows, and other systems, from electrical overloads that could cause damage.

Can I replace a blown fuse in my 2019 Jeep Wrangler myself?

Yes, you can typically replace a blown fuse yourself. Your owner’s manual will guide you on the appropriate replacement fuse and its location.

What tools do I need to replace a fuse in my 2019 Jeep Wrangler?

In most cases, you only need a pair of needle-nose pliers or a fuse puller, and replacement fuses.

How do I determine which fuse has blown in my 2019 Jeep Wrangler?

Your owner’s manual will provide a fuse diagram that indicates which fuse corresponds to specific electrical components. You can use this to identify the blown fuse.

Are spare fuses included in the 2019 Jeep Wrangler’s fuse box?

Yes, there are typically spare fuses provided within the fuse box, allowing you to replace blown fuses immediately.

Can I use a higher-rated fuse to replace a blown one for more power?

No, it is not advisable to use a higher-rated fuse as it can lead to electrical damage and pose safety risks. Always replace a blown fuse with the same amperage rating.

Are there any common electrical issues related to the 2019 Jeep Wrangler’s fuse box?

Common issues may include blown fuses due to overloaded circuits, which can affect various electrical components in the vehicle.

How can I prevent blown fuses in my 2019 Jeep Wrangler?

To prevent blown fuses, avoid overloading electrical circuits and make sure you use the correct accessories with the recommended power ratings.

Can I install additional fuses in the 2019 Jeep Wrangler’s fuse box for extra accessories?

Yes, you can install additional fuses and relays for aftermarket accessories, but it’s essential to follow proper installation guidelines to avoid electrical issues.

What are some signs that I may have a blown fuse in my 2019 Jeep Wrangler?

Common signs of a blown fuse include non-functioning electrical components, such as lights, power windows, or the radio.

Where can I find a replacement fuse for my 2019 Jeep Wrangler?

Replacement fuses are readily available at auto parts stores, hardware stores, or even online, ensuring you can quickly replace any blown fuses in your Wrangler.

View Full PDF: 2019 Jeep Wrangler Owner’s Manual|Auto User Guide

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