2019 RAM CHASSIS CAB service

372 IN CASE OF EMERGENCY
Exterior Bulbs
Bulb Number
Low Beam (Halogen Reflector Headlamp) H11LL
High Beam (Halogen Reflector Headlamp) 9005LL
Low & High Beam (LED Reflector Headlamp) LED (Serviced At An Authorized Dealer)
Low & High Beam (LED Projector Headlamp) LED (Serviced At An Authorized Dealer)
Turn Signal / Front Position (Halogen Reflector Headlamp) 7444NA
Turn Signal / Front Position (LED Headlamps) LED (Serviced at authorized dealer)
Front Side Marker (Halogen Reflector Headlamp) W5W
Front Side Marker (LED Headlamps) LED (Serviced At An Authorized Dealer)
Front Fog Lamps (Halogen Reflector Headlamp) H11LL
Front Fog Lamps (LED Headlamps) LED (Serviced At An Authorized Dealer)
Side Indicators (Front And Side View Mirror) LED (Serviced at authorized dealer)
Center High Mounted Stop Lamp (CHMSL) 921
Cab Roof Marker Lamps 194NA
Box Off Tail Lamps – Stop/Turn/Tail/License Plate 1157
Box Off Tail Lamps – Back Up 1156

380 IN CASE OF EMERGENCY
3. Pull the bulb straight from it's socket and replace.
Removing The Bulb From The Bulb Socket FUSES
WARNING!
• When replacing a blown fuse, always use an appro -
priate 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. Do not place a fuse
inside a circuit breaker cavity or vice versa. 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 is
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, transmission system) or steering system blows,
contact an authorized dealer.

IN CASE OF EMERGENCY 381
Power Distribution Center
The Power Distribution Center is located in the engine
compartment near the battery. This center contains cartridge
fuses, micro fuses, relays, and circuit breakers. A description
of each fuse and component may be stamped on the inside
cover, otherwise the cavity number of each fuse is stamped
on the inside cover that corresponds to the following chart.
Power Distribution Center Location
Cavity Cartridge Fuse Micro Fuse Description
F01 80 Amp Black – Rad Fan Control Module – If Equipped (DS 1500 Only)
F02 60 Amp Yellow – ABS Pump Motor (HD Only)
F03 60 Amp Yellow – Rad Fan – If Equipped
F04 50 Amp Red 400W Inverter – If Equipped (HD Only)
F05 40 Amp Green
50 Amp Red (Special
Services Vehicle (SSV)) – Compressor For Air Suspension – If Equipped
F06 40 Amp Green – ABS Pump Motor (DS 1500 Only)
F07 40 Amp Green – Starter Solenoid 6

IN CASE OF EMERGENCY 383
F20 30 Amp Pink – Passenger Door Module
F21 30 Amp Pink – Drive Train Control Module
F22 20 Amp Blue – Engine Control Module GPEC / Heavy Duty / Other –
If Equipped
F22 25 Amp White
(Cummins Diesel) – PCM – If Equipped
F23 30 Amp Pink – CBC Feed # 1
F24 30 Amp Pink – Driver Door Module
F25 30 Amp Pink – Front Wiper
F26 30 Amp Pink – Antilock Brakes / Stability Control Module / Valves – If
Equipped (DS 1500 Only)
F28 20 Amp Blue – Trailer Tow Backup Lights – If Equipped
F29 20 Amp Blue – Trailer Tow Parking Lights – If Equipped
F30 30 Amp Pink – Trailer Tow Receptacle / Trailer Tow (Separate
E-Brake)/Trailer Tow (BUX)
F31 30 Amp Pink – Diesel Heater Control – If Equipped (DS 1500 LD Diesel)
F31 20 Amp Blue – Aux App SSV Only - If Equipped
F32 – – Aux Feed, Special Services Vehicle-If Equipped (DS 1500
Only)
F33 20 Amp Blue – Trans Control Module – If Equipped (HD Only)
Aux Feed, SSV Only (DS 1500 Only)Cavity Cartridge Fuse Micro Fuse Description
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390 IN CASE OF EMERGENCY
(Continued)JACKING AND TIRE CHANGING F102 – 20 Amp Yellow Rear Heated Seat Left / Run RLY #3 Coil (HD Only)
F103 – 10 Amp Red HeadLamp AFLS (HD Only)
F104 – 20 Amp Yellow Power Outlets (Instrument Panel / Center Console) /
Trunk – If Equipped (DS 1500 Only)
UCI Port / USB Rear (HD Only)Cavity Cartridge Fuse Micro Fuse Description
CAUTION!
• When installing the power distribution center cover, it
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 use
only a fuse having the correct amperage rating. The use
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. 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. The
vehicle could slip off the jack and fall on you. You
could be crushed. Never put any part of your body
under a vehicle that is on a jack. If you need to get
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.

IN CASE OF EMERGENCY 391
4500/5500 Models
These vehicles do not come equipped with a jack.
NOTE:
Jacking and tire changing on 4500/5500 models should be
performed by an authorized dealer, or knowledgeable
service personnel with the appropriate heavy duty equip -
ment, like a tire service company. Preparations For Jacking
1. Park the vehicle on a firm, level surface. Avoid ice or slip -
pery areas.
2. Place the gear selector into PARK. On four-wheel drive
vehicles, shift the transfer case to the 4L position.
3. Turn on the Hazard Warning flasher.
4. Apply the parking brake.
5. Turn the ignition OFF.• 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 slip -
pery areas. WARNING! (Continued)
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 being hit when operating the jack or changing the
wheel.
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392 IN CASE OF EMERGENCY
(Continued)6. Block both the front and rear of the wheel diagonally
opposite the jacking position. For example, if the right
front wheel is being changed, block the left rear wheel.
Wheel Blocked
NOTE:
Passengers should not remain in the vehicle when the
vehicle is being jacked. Jacking Instructions 4500 And 5500 Series
WARNING!
Carefully follow these tire changing warnings to help
prevent personal injury or damage to your vehicle:
• Always park on a firm, level surface as far from the
edge of the roadway as possible before raising the
vehicle.
• Turn on the Hazard Warning flasher.
• Block the wheel diagonally opposite the wheel to be
raised.
• Apply the parking brake firmly and set the transmis -
sion in PARK.
• Never start or run the engine with the vehicle on a jack.
• Do not let anyone sit in the vehicle when it is on a jack.
• Do not get under the vehicle when it is on a jack. If you
need to get under a raised vehicle, take it to a service
center where it can be raised on a lift.
• Only use the jack in the positions indicated and for
lifting this vehicle during a tire change.
• If working on or near a roadway, be extremely careful
of motor traffic.

IN CASE OF EMERGENCY 395
5. Remove the lug nuts and pull the wheel off. Install the
spare wheel and lug nuts with the cone shaped end of the
nuts toward the wheel on single rear wheel (SRW)
models. On dual rear wheel models (DRW) the lug nuts
are a two-piece assembly with a flat face. Lightly tighten
the nuts. To avoid risk of forcing the vehicle off the jack,
do not fully tighten the nuts until the vehicle has been
lowered.
6. Using the lug wrench, finish tightening the nuts using a
crisscross pattern. For the proper lug nut torque specifica -
tions refer to “Wheel And Tire Torque Specifications” in
“Technical Specifications.” If in doubt about the correct
tightness, have them checked with a torque wrench by an
authorized dealer or at a service station. 7. Install wheel center cap (if equipped) and remove wheel
blocks. Do not install chrome or aluminum wheel center
caps on the spare wheel. This may result in cap damage.
8. Lower the jack to its fully closed position. If the jack will
not lower by turning the dial (thumbwheel) by hand, it
may be necessary to use the jack driver in order to lower
the jack. Stow the replaced tire, jack, and tools as previ -
ously described.
9. Adjust the tire pressure when possible.WARNING!
Raising the vehicle higher than necessary can make the
vehicle less stable. It could slip off the jack and hurt
someone near it. Raise the vehicle only enough to
remove the tire. WARNING!
A loose tire or jack thrown forward in a collision or hard
stop, could endanger the occupants of the vehicle.
Always stow the jack parts and the spare tire in the
places provided.
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