trailer RAM 1500 2023 Manual PDF

SERVICING AND MAINTENANCE359
F4040 Amp Green –Starter
F41 –10 Amp RedIRCAM Heaters
F42 20 Amp Blue –AUX SWITCH #5 *
F43 –20 Amp Yellow MGU Coolant Pump / ADCM *
F44 –10 Amp RedTrailer Camera *
F45 –10 Amp RedADCM *
F46 30 Amp Pink –Fuel Heater *
F47 30 Amp Pink –Rear Defroster
F48 ––Spare *
F49 30 Amp Pink –Htr Ctrl *
F50 20 Amp Blue –AUX SWITCH #6 *
F51 25 Amp White –FUEL PUMP MOTOR #1 *
F52 ––Spare *
F53 –10 Amp RedSupply / Purging Pump *
F54 –15 Amp Blue
PCM *
10 Amp Red Vapor Blocking Valve *
F55 –15 Amp BlueRT HID Headlamp
F56 ––Spare *
F57 –20 Amp Yellow Horn
F58 25 Amp White –FUEL PUMP MOTOR #2 *
F59 –25 Amp ClearInjectors / IGN Coil / Glow Plug Module *
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped
8

23_DT_OM_EN_USC_t.book Page 359

SERVICING AND MAINTENANCE361
Internal Fuse Chart
CavityCartridge Fuse Micro Fuse Description
* If Equipped
F01 30 Amp Pink –Trailer Tow Receptacle
F02 ––Spare
F03 –20 Amp Yellow Module Seat Heater Front (Pass)
F04 ––Spare
F05 –20 Amp Yellow Module PPU Cooling Fan *
F06 ––Spare
F07 40 Amp Green –Mod CBC 3 PWR Locks
F08 ––Spare
F09 ––Spare
F10 40 Amp Green –HVAC Blower Motor
F11 –5 Amp TanOutput to Under-hood Power Distribution Center (UPDC) Run Coil
F12 –25 Amp ClearMod Audio Amplifier / Active Noise Cancellation
F13 –20 Amp Yellow Mod Seat Heater Front (Driver)
F14 –15 Amp BlueMod Seat Heater Front (Steering Wheel)
F15 A&B ––Spare
F16 ––Spare
F17 –20 Amp Yellow LT Spot Lamp *
F18 30 Amp Pink –Motor Sunshade Sunroof
F19 ––Spare
F20 –20 Amp Yellow Comfort Rear Seat Module (CRSM) (Heat Rear RT)
F21 ––Spare
8

23_DT_OM_EN_USC_t.book Page 361

362SERVICING AND MAINTENANCE
F22 ––Spare
F23 ––Spare
F24 –15 Amp BlueMod RF Hub / Mod Ignition / Mod Cluster CNN
F25 40 Amp Green –Mod Integrated Trailer Brake
F26 –15 Amp BlueMod Cluster CCN / Mod Cyber Security / Trailer Gateway Module
(360 Camera)
F27 –5 Amp TanMod Cluster CCN / Mod SGW
F28 –10 Amp RedMod ORC
F29 –20 Amp Yellow Mod CRSM (Heat Rear LT)
F30 30 Amp Pink –Mod DTCM / Mod Tailgate
F31 30 Amp Pink –Mod CBC 1 Interior Light
F32 –20 Amp Yellow RT Spot Lamp *
F33 –10 Amp RedAssy Overhead Console / Switch 911 / Switch Assist / Sunshade /
HUD
F34 –15 Amp BlueFrt & RR Ventilated Seat Motor
F35 –10 Amp RedMod Inverter / Mtr Sunshade Sunroof / Mtr Dual Sunroof / USB Charge
Only
F36 40 Amp Green –Mod CBC 2 Exterior Light 1
F37 ––Spare
F38 ––Spare
F39 ––Spare
F40 20 Amp Blue –Dome Pursuit Vehicle *
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped

23_DT_OM_EN_USC_t.book Page 362

SERVICING AND MAINTENANCE363
F41 A&B –15 Amp BlueLumbar Support & Pass SW / Steering Column Control Module / HVAC
Control Module / ICS Switch Bank / Upper Switch Bank
F42 A&B –10 Amp RedMod Transfer Case Switch Module (TCSM) / SBW / Electric Park Brake
SW / Module TPM Trailer / Module Gateway Can-C Trailer TPM / Seat
LT & RT Vent
F43 A&B –10 Amp RedPort Diagnostics / Front & Rear USB
F44 –20 Amp Yellow Radio / DCSD / Telematics Box Mod / Trailer Gateway Module (360)
F45 30 Amp Pink –Mod Door MUX Driver
F46 30 Amp Pink –Mod Door MUX Passenger
F47 ––Spare
F48A –10 Amp RedRear View Mirror / SW Window Passenger / Rear USB / Wireless
Charging Pad Mod
F49 –15 Amp BlueMod CVPM / SNSR Blind Spot / HDLP Adaptive Front Lighting Sensor
(AFLS)
F50A –10 Amp RedBattery PACK Control Mod (BPCM) *
F51 A&B ––Spare
F52 20 Amp Blue –Direct Battery Feed *
F53 –10 Amp RedTrailer Reverse Steering Control / Trailer Steering Control Knob
F54 A&B –20 Amp YellowPower Outlet Center Seat Battery Feed Position
Power Outlet Center Seat Ignition Feed Position
F55 25 Amp White –Upfitter *
F56 30 Amp Pink –Mod Network Interface *
F57 20 Amp Blue –Direct Battery Feed *
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped
8

23_DT_OM_EN_USC_t.book Page 363

364SERVICING AND MAINTENANCE
Circuit BreakersF58
20 Amp Blue –Direct Battery Feed *
F60 50 Amp Red –Mod Inverter *
F61 ––Spare
F62 A&B –10 Amp RedITBM / Mod Occupant Class / Mod IAIR Suspension / Mod HVAC / Snsr
In car Temp / Integrated Radar Camera Mod (IRCM) / Humidity Rain &
Light Sensor (HRLS) / Parktronics System Mod (PTS) / Gateway Can-C
Trailer TPM Mod
F63 ––Spare
F64 ––Spare
F65 –10 Amp RedMod ORC
F66 –10 Amp RedRun - Accessory Feed
Cavity Cartridge Fuse Micro Fuse Description
* If Equipped
Cavity Circuit Breaker Description
CB125 AmpDriver Window SW Rear PWR Windows / Overhead SW Rear
Defrost
CB2 25 AmpDriver PWR Seat / Driver Seat Memory Mod
CB3 25 AmpPassenger Power Seat / Passenger Seat Memory Mod

23_DT_OM_EN_USC_t.book Page 364

374SERVICING AND MAINTENANCE
Tire Loading And Tire Pressure
NOTE:The proper cold tire inflation pressure is listed on the
driver’s side B-pillar or the rear edge of the driver's side
door.
Check the inflation pressure of each tire, including the
spare tire (if equipped), at least monthly and inflate to the
recommended pressure for your vehicle.

Example Tire Placard Location (Door) Example Tire Placard Location (B-pillar)

Tire And Loading Information Placard

Tire And Loading Information Placard

This placard tells you important information about the:

1. Number of people that can be carried in the vehicle.

2. Total weight your vehicle can carry.
3. Tire size designed for your vehicle.
4. Cold tire inflation pressures for the front, rear, and
spare tires.
Loading
The vehicle maximum load on the tire must not exceed the
load carrying capacity of the tire on your vehicle. You will
not exceed the tire's load carrying capacity if you adhere to
the loading conditions, tire size, and cold tire inflation
pressures specified on the Tire And Loading Information
Placard in Vehicle Loading
Úpage 172.
NOTE:Under a maximum loaded vehicle condition, Gross Axle
Weight Rating (GAWR) for the front and rear axles must
not be exceeded.
For further information on GAWR, vehicle loading, and
trailer towing
Úpage 172.
To determine the maximum loading conditions of your
vehicle, locate the statement “The combined weight of
occupants and cargo should never exceed XXX kg or XXX
lbs” on the Tire And Loading Information Placard. The
combined weight of occupants, cargo/luggage and trailer
tongue weight (if applicable) should never exceed the
weight referenced here.

23_DT_OM_EN_USC_t.book Page 374

SERVICING AND MAINTENANCE375
Steps For Determining Correct Load Limit—
(1) Locate the statement “The combined
weight of occupants and cargo should
never exceed XXX kg or XXX lbs.” on your
vehicle's placard.
(2) Determine the combined weight of
the driver and passengers that will be
riding in your vehicle.
(3) Subtract the combined weight of the
driver and passengers from XXX kg or
XXX lbs.
(4) The resulting figure equals the
available amount of cargo and luggage
load capacity. For example, if “XXX”
amount equals 1400 lbs. and there will
be five 150 lb passengers in your
vehicle, the amount of available cargo
and luggage load capacity is 650 lbs.
(1400-750 (5x150) = 650 lbs.) (5) Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely
exceed the available cargo and luggage
load capacity calculated in Step 4.
(6) If your vehicle will be towing a trailer,
load from your trailer will be transferred
to your vehicle. Consult this manual to
determine how this reduces the
available cargo and luggage load
capacity of your vehicle.
Metric Example For Load Limit
For example, if “XXX” amount equals 635 kg and there will
be five 68 kg passengers in your vehicle, the amount of
available cargo and luggage load capacity is 295 kg
(635-340 (5x68) = 295 kg) as shown in step 4.
NOTE:

If your vehicle will be towing a trailer, load from your
trailer will be transferred to your vehicle. The following
table shows examples on how to calculate total load,
cargo/luggage, and towing capacities of your vehicle
with varying seating configurations and number and
size of occupants. This table is for illustration purposes
only and may not be accurate for the seating and load
carry capacity of your vehicle.
 For the following example, the combined weight
of occupants and cargo should never exceed
865 lbs (392 kg).
8

23_DT_OM_EN_USC_t.book Page 375

378SERVICING AND MAINTENANCE
Check tire pressures more often if subject to a wide range
of outdoor temperatures, as tire pressures vary with
temperature changes.
Tire pressures change by approximately 1 psi (7 kPa) per
12°F (7°C) of air temperature change. Keep this in mind
when checking tire pressure inside a garage, especially in
the Winter.
Example: If garage temperature = 68°F (20°C) and the
outside temperature = 32°F (0°C) then the cold tire
inflation pressure should be increased by 3 psi (21 kPa),
which equals 1 psi (7 kPa) for every 12°F (7°C) for this
outside temperature condition.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa)
during operation. DO NOT reduce this normal pressure
build up or your tire pressure will be too low.
Tire Pressures For High Speed Operation
The manufacturer advocates driving at safe speeds and
within posted speed limits. Where speed limits or
conditions are such that the vehicle can be driven at high
speeds, maintaining correct tire inflation pressure is very
important. Increased tire pressure and reduced vehicle
loading may be required for high-speed vehicle operation.
Refer to an authorized tire dealer or original equipment
vehicle dealer for recommended safe operating speeds,
loading and cold tire inflation pressures.
Radial Ply Tires
Tire Repair
If your tire becomes damaged, it may be repaired if it
meets the following criteria:
The tire has not been driven on when flat
 The damage is only on the tread section of your tire
(sidewall damage is not repairable)
 The puncture is no greater than ¼ of an inch (6 mm)
Consult an authorized tire dealer for tire repairs and
additional information. Damaged Run Flat tires, or Run Flat tires that have
experienced a loss of pressure should be replaced
immediately with another Run Flat tire of identical size and
service description (Load Index and Speed Symbol).
Replace the tire pressure sensor as well as it is not
designed to be reused.
Run Flat Tires — If Equipped
Run Flat tires allow you the capability to drive 50 miles
(80 km) at 50 mph (80 km/h) after a rapid loss of inflation
pressure. This rapid loss of inflation is referred to as the
Run Flat mode. A Run Flat mode occurs when the tire
inflation pressure is of/or below 14 psi (96 kPa).
Once a Run Flat tire reaches the Run Flat mode it has
limited driving capabilities and needs to be replaced
immediately. A Run Flat tire is not repairable. When a Run
Flat tire is changed after being driven in a Run Flat mode
14 psi (96 kPa) condition, please replace the TPMS sensor
as it is not designed to be reused.
NOTE:The TPMS Sensor must be replaced after driving the
vehicle on a flat tire condition.
It is not recommended driving a vehicle loaded at full
capacity or to tow a trailer while a tire is in the
Run Flat mode.
For more information
Úpage 277.
WARNING!
High speed driving with your vehicle under maximum
load is dangerous. The added strain on your tires could
cause them to fail. You could have a serious collision.
Do not drive a vehicle loaded to the maximum capacity
at continuous speeds above 75 mph (120 km/h).
WARNING!
Combining radial ply tires with other types of tires on
your vehicle will cause your vehicle to handle poorly.
The instability could cause a collision. Always use radial
ply tires in sets of four. Never combine them with other
types of tires.

23_DT_OM_EN_USC_t.book Page 378

404
Brake Fluid .......................................................... 352, 397
Brake System ...................................................... 352, 392
Fluid Check.............................................................. 352
Master Cylinder ....................................................... 352
Parking .................................................................... 122
Warning Light .......................................................... 108
Brake/Transmission Interlock..................................... 125
Bulb Replacement ....................................................... 365
Bulbs, Light.......................................................... 313
, 365
CCamera ......................................................................... 163
Camera, AUX................................................................. 168
Camera, Rear ............................................................... 163
Camera, Surround View ............................................... 165
Camera, Trailer 360..................................................... 168
Capacities, Fuel............................................................ 395
Caps, Filler Oil (Engine) .............................................................. 337
Radiator (Coolant Pressure)................................... 350
Car Washes .................................................................. 388
Carbon Monoxide Warning .......................................... 313
Care And Maintenance ................................................ 388
Cargo Light ...................................................................... 49
CD.................................................................................. 226
Cellular Phone .............................................................. 252
Center High Mounted Stop Light................................. 369
Center Seat Storage Compartment ...............................60
Chart, Tire Sizing .......................................................... 371
Check Engine Light (Malfunction Indicator Light) ...... 117
Checking Your Vehicle For Safety ............................... 311
Checks, Safety.............................................................. 311
Child Restraint.............................................................. 298 Child Restraints
Booster Seats .......................................................... 301
Child Seat Installation ................................... 306
, 308
How To Stow An unused ALR Seat Belt .................305 Infant And Child Restraints ..................................... 300
Locating The LATCH Anchorages............................ 304
Lower Anchors And Tethers For Children............... 302
Older Children And Child Restraints....................... 300
Seating Positions ..................................................... 301
Clean Air Gasoline ........................................................ 393
Cleaning Wheels .....................................................................383
Climate Control ............................................................... 54 Automatic ................................................................... 54
Manual ....................................................................... 56
Compact Spare Tire ...................................................... 381
Connected Services ................ 236
, 237, 238, 239, 248
Contract, Service .......................................................... 400
Controls ......................................................................... 218
Cooling Pressure Cap (Radiator Cap) ..........................350
Cooling System ............................................................. 349 Adding Coolant (Antifreeze) ....................................350
Coolant Level ................................................. 349
, 351
Cooling Capacity ...................................................... 395
Disposal Of Used Coolant ....................................... 351 Drain, Flush, And Refill............................................349
Inspection ................................................................ 351
Points To Remember............................................... 352
Pressure Cap ...........................................................350
Radiator Cap ............................................................350Selection Of Coolant (Antifreeze) ........ 350
, 395, 396
Corrosion Protection ..................................................... 388
Cruise Control Accel/Decel.............................................................. 144 Cancel ...................................................................... 145
Resume.................................................................... 144
Cruise Control (Speed Control) ........................... 143
, 145
Cruise Light ..........................................................115, 116
Customer Assistance ................................................... 398
Cybersecurity ................................................................ 191
DDaytime Running Lights ................................................. 47 Dealer Service .............................................................. 341
Defroster, Windshield .................................... 54
, 56, 311
Deleting A Phone .......................................................... 231
Diagnostic System, Onboard ....................................... 116
Differential, Limited Slip .............................................. 140
Dimmer Control Switch .................................................. 51
Disable Vehicle Towing ................................................ 330
Disc Drive ...................................................................... 226
Disconnecting ............................................................... 231
Disposal Antifreeze (Engine Coolant) .................................... 351
Disturb........................................................................... 234
Door Ajar .............................................................. 108
, 110
Door Ajar Light ..................................................... 108, 110
Door Locks Automatic .................................................................. 27
Doors ............................................................................... 24
Driver Memory Presets ................................................ 224
Driver’s Seat Back Tilt .................................................... 30
Driving Through Flowing, Rising, Or Shallow Standing Water .................................................. 189
Driving Tips ................................................................... 189
Dual Rear Wheels......................................................... 392

23_DT_OM_EN_USC_t.book Page 404

405
E
Electric Brake Control System..................................... 263 Anti-Lock Brake System ......................................... 262
Electronic Roll Mitigation .............................. 264
, 268
Electric Parking Brake ................................................. 122
Electric Power Steering................................................ 141
Electrical Power Outlets..................................................66 Electronic Range Select (ERS) .................................... 128
Electronic Stability Control (ESC) ................................ 264
Electronic Throttle Control Warning Light................... 109
Electronically Shifted Transfer Case .................. 130
, 132
Emergency Braking ...................................................... 276
Emergency Gas Can Refueling .................................... 326
Emergency, In Case Of Freeing Vehicle When Stuck .................................. 329
Hazard Warning Flasher ......................................... 314
Jump Starting .......................................................... 325
Emission Control System Maintenance...................... 117
Engine ........................................................................... 337 Air Cleaner ............................................................... 342Block Heater ........................................................... 121
Break-In Recommendations .................................. 122
Compartment ........................................337
, 338, 339
Compartment Identification .................337, 338, 339
Coolant (Antifreeze) ................................................ 396
Exhaust Gas Caution .............................................. 313
Fails To Start ........................................................... 121
Flooded, Starting .................................................... 121
Fuel Requirements ........................................ 393
, 395
Jump Starting .......................................................... 325
Oil ...........................................................341
, 395, 396
Oil Filler Cap ............................................................ 337 Oil Filter ....................................................................342
Oil Selection ................................................... 341
, 395
Oil Synthetic ............................................................. 342
Overheating ............................................................. 327
Starting.....................................................................118
Enhanced Accident Response Feature ............. 297
, 332
Entry System, Illuminated .............................................. 52 Ethanol .......................................................................... 394
Exhaust Gas Cautions ..................................................313
Exhaust System .................................................. 313
, 348
Exterior Lights ........................................................46, 313
FFamily Alerts .................................................................. 248
FAQ ................................................................................ 248
Features ........................................................................ 239
Filters Air Cleaner ............................................................... 342
Air Conditioning ................................................59
, 344
Engine Oil ................................................................. 342
Engine Oil Disposal..................................................342
Flashers Turn Signals ................................................... 115
, 313
Flash-To-Pass .................................................................. 48
Flat Tire Stowage .......................................................... 323
Fluid Capacities ............................................................395
Fluid Leaks ....................................................................313
Fluid Level Checks Brake ........................................................................ 352
Fluid, Brake ...................................................................397
Fog Lights ...............................................................48
, 368
Fold-Flat Seats ................................................................ 30 Forward Collision Warning ........................................... 274
Four Wheel Drive .......................................................... 130
Four-Way Hazard Flasher ............................................. 314
Freeing A Stuck Vehicle ............................................... 329
Front Axle (Differential) ................................................ 353
Fuel................................................................................ 393
Adding ...................................................................... 171Additives .................................................................. 393
Clean Air .................................................................. 393
Ethanol..................................................................... 394Gasoline ................................................................... 393
Light ......................................................................... 111
Materials Added ...................................................... 393
Methanol ................................................................. 394
Octane Rating.................................................393
, 396
Requirements .................................................393, 395
Tank Capacity .......................................................... 395
Fuel Saver Technology ................................................. 141
Fuses ............................................................................. 354
GGarage Door Opener (HomeLink) .................................. 42 Gasoline, Clean Air ....................................................... 393
Gasoline, Reformulated ............................................... 393
Getting Started ............................................................. 238
Glass Cleaning .............................................................. 391
Grocery Bag Retainer ..................................................... 34
Gross Axle Weight Rating ............................................. 173
Gross Combination Weight Rating .............................. 173
Gross Trailer Weight ..................................................... 173
Gross Vehicle Weight Rating ....................................... 173
Guide Body Builders ...............................................................9
GVWR ............................................................................ 172
11

23_DT_OM_EN_USC_t.book Page 405