RAM 1500 TRX (2022 year). Manual in english — page 28

SERVICING AND MAINTENANCE

445

F19

–

–

Spare

F20

–

20 Amp Yellow

Comfort Rear Seat Module (CRSM) (Heat Rear RT)

F21

–

–

Spare

F22

–

–

Spare

F23

–

–

Spare

F24

–

15 Amp Blue

Mod RF Hub / Mod Ignition / Mod Cluster CNN

F25

40 Amp Green

–

Mod Integrated Trailer Brake

F26

–

15 Amp Blue

Mod Cluster CCN / Mod Cyber Security / Trailer Gateway

Module (360 Camera)

F27

–

5 Amp Tan

Mod Cluster CCN / Mod SGW

F28

–

10 Amp Red

Mod 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 Red

Assy Overhead Console / Switch 911 / Switch Assist /

Sunshade / HUD

F34

–

15 Amp Blue

Frt & RR Ventilated Seat Motor

F35

–

10 Amp Red

Mod Inverter / Mtr Sunshade Sunroof / Mtr Dual Sunroof /

USB Charge Only

F36

40 Amp Green

–

Mod CBC 2 Exterior Light 1

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

8

446

SERVICING AND MAINTENANCE

F37

–

–

Spare

F38

–

–

Spare

F39

–

–

Spare

F40

20 Amp Blue

–

Dome Pursuit Vehicle *

F41 A&B

–

15 Amp Blue

Lumbar Support & Pass SW / Steering Column Control

Module / HVAC Control Module / ICS Switch Bank / Upper

Switch Bank

F42 A&B

–

10 Amp Red

Mod 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 Red

Port 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 Red

Rearview Mirror / SW Window Passenger / Rear USB /

Wireless Charging Pad Mod

F49

–

15 Amp Blue

Mod CVPM / SNSR Blind Spot / HDLP Adaptive Front Lighting

Sensor (AFLS)

F50A

–

10 Amp Red

Battery PACK Control Mod (BPCM) *

F51 A&B

–

–

Spare

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

SERVICING AND MAINTENANCE

447

F52

20 Amp Blue

–

Direct Battery Feed *

F53

–

10 Amp Red

Trailer Reverse Steering Control / Trailer Steering Control

Knob

F54 A&B

–

20 Amp Yellow

Power 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 *

F58

20 Amp Blue

–

Direct Battery Feed *

F60

50 Amp Red

–

Mod Inverter

F61

–

–

Spare

F62 A&B

–

10 Amp Red

ITBM / 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 Red

Mod ORC

F66

–

10 Amp Red

Run - Accessory Feed

Cavity

Cartridge Fuse

Micro Fuse

Description

* If Equipped

8

448

SERVICING AND MAINTENANCE

Circuit Breakers

B

ULB

R

EPLACEMENT

Replacement Bulbs, Names, And Part Numbers

In the instance a bulb needs to be replaced, this section includes bulb description and replacement part numbers. All of the inside bulbs are brass or glass-wedge

base. Aluminum base bulbs are not approved.

NOTE:

See an authorized dealer for LED bulb replacement.

Cavity

Circuit Breaker

Description

CB1

25 Amp

Driver Window SW Rear PWR Windows / Overhead

SW Rear Defrost

CB2

25 Amp

Driver PWR Seat / Driver Seat Memory Mod

CB3

25 Amp

Passenger Power Seat / Passenger Seat Memory

Mod

Interior Bulbs

Bulb Name

Bulb Number

Overhead Console Lamps

TS 212–9

Dome Lamp

7679

NOTE:

For lighted switches, see an authorized dealer for replacement instructions.

SERVICING AND MAINTENANCE

449

Exterior Bulbs

Bulb Name

Bulb Number

Low Beam (Halogen Reflector Headlamp – If Equipped)

H11LL

High Beam (Halogen Reflector Headlamp – If Equipped)

9005LL

Low & High Beam (LED Reflector Headlamp)

LED

Low & High Beam (LED Projector Headlamp)

LED

Turn Signal / Front Position (Halogen Reflector Headlamp – If Equipped)

7444NA

Turn Signal / Front Position (LED Headlamps)

LED

Front Side Marker (Halogen Reflector Headlamp – If Equipped)

W5W

Front Side Marker

LED

Front Fog Lamps (Halogen Reflector Headlamp – If Equipped)

H11LL

Front Fog Lamps

LED

Side Indicators (Front And Side View Mirror – If Equipped)

LED

Base Rear Tail/Turn and Stop Lamp

7440LL/W21WLL

Premium Rear Tail/Turn/Backup and Stop Lamp

LED

Base Backup Lamp

7440/W21W

Center High Mounted Stop Lamp (CHMSL)

921

Cargo Lamp

921

Rear License Plate Lamp

LED

Base Turn Lamp

7440NA / WY21W

8

450

SERVICING AND MAINTENANCE

Replacing Exterior Bulbs

BASE QUAD: LOW BEAM HEADLAMP,

HIGH BEAM HEADLAMP, FRONT PARK

AND TURN — IF EQUIPPED

Low Beam
See the following steps to replace:
1. Open the hood.
2. Disconnect and isolate the negative

battery cable.

3. Locate the low beam access cover, which can

be found on the back side of the headlamps.

Low Beam Headlight Cover

NOTE:

It may be necessary to remove/reposition Air

Cleaner Assembly to access passenger side

headlamp/side marker light bulbs.
4. Disengage the bulb access cover by rotating

counterclockwise.

5. Disconnect the internal lamp wiring harness

connector from the low beam bulb.

6. Rotate the bulb counterclockwise a quarter

turn to unlock the bulb from the lamp.

7. Pull the bulb straight out from the housing.
8. Reverse the procedure for installation of new

bulb and covers.

High Beam

High Beam Headlight Cover

See the following steps to replace:
1. Open the hood.
2. Disconnect and isolate the negative battery

cable.

3. Locate the high beam access cover, which can

be found on the back side of the headlamps.

NOTE:

It may be necessary to remove/reposition Air

Cleaner Assembly to access passenger side

headlamp/side marker light bulbs.

CAUTION!



Do not contaminate the bulb glass by touching

it with your fingers or by allowing it to contact

other oily surfaces. Shortened bulb life will

result.



Always use the correct bulb size and type for

replacement. An incorrect bulb size or type

may overheat and cause damage to the lamp,

the bulb socket, or the lamp wiring.

SERVICING AND MAINTENANCE

451

4. Reach behind the headlamp and disengage

the access cover by rotating counterclockwise.

5. Disconnect the internal lamp wiring harness

connector from the high beam bulb.

6. Rotate the bulb counterclockwise a quarter

turn to unlock the bulb from the lamp.

7. Pull the bulb straight out from the housing.
8. Reverse the procedure for installation of new

bulb and cover.

Front Park And Turn
See the following steps to replace:
1. Open the hood.
2. Disconnect and isolate the negative battery

cable.

3. Locate the park and turn socket, which can be

found on the back side of the headlamps.

Park And Turn Socket

4. Reach behind the headlamp and unlock the

park and turn socket from the lamp by rotating

counterclockwise a quarter turn.

5. Pull the bulb straight out from the housing.

6. Separate the bulb from the socket without

twisting.

7. Reverse the procedure for installation of new

bulb and covers.

Side Marker Lamp
See the following steps to replace:
1. Open the hood.
2. Disconnect and isolate the negative battery

cable.

3. Locate the side marker lamp, which can be

found on the back side of the headlamps.

Side Marker Lamp

4. Disengage the side marker socket by rotating

counterclockwise a quarter turn.

CAUTION!



Do not contaminate the bulb glass by touching

it with your fingers or by allowing it to contact

other oily surfaces. Shortened bulb life will

result.



Always use the correct bulb size and type for

replacement. An incorrect bulb size or type

may overheat and cause damage to the lamp,

the bulb socket, or the lamp wiring.

8

452

SERVICING AND MAINTENANCE

5. Pull the socket and bulb straight out from the

housing.

6. Separate the bulb from the socket without

twisting.

7. Reverse the procedure for installation of new

bulb and covers.

FOG LAMPS — IF EQUIPPED

Please see an authorized dealer for service on

LED and Halogen front fog lamps.
Halogen
See the following steps to replace:
1. Reach under and behind the front

fascia/bumper to access the back of the front

fog lamp housing.

2. Disconnect the fog lamp wiring harness

connector from the fog lamp bulb.

Fog Lamp Bulb

3. Rotate the bulb counterclockwise a quarter

turn to unlock the bulb from the housing.

4. Pull the bulb straight out from the housing.
5. Reverse the procedure to install the bulb and

cover.

REAR TAIL/STOP, TURN SIGNAL AND BACKUP

LAMPS

1. Remove the two screws and push pin

retainers that pass through the bed sheet

metal.

Tail Lamp Locations

2. Pull the outboard side of the lamp rearward far

enough to unsnap the two receptacles on the

outboard side of the lamp housing from the

two plastic snap post retainers in the outer box

side panel.

CAUTION!

Do not contaminate the bulb glass by touching it

with your fingers or by allowing it to contact other

oily surfaces. Shortened bulb life will result.

1 — Tail Lamp
2 — Fasteners
3 — Push - Pin Retainers

SERVICING AND MAINTENANCE

453

Tail Lamp Removal

3. Disconnect the wiring harness connectors

from the bulb socket.

Wiring Harness Connector

4. Rotate the bulb socket counterclockwise a

quarter turn to unlock it from the housing.

5. Pull the bulb straight out of the socket.

6. Reverse the procedure to install the bulb and

housing.

CENTER HIGH MOUNTED STOP LAMP (CHMSL)

WITH CARGO LAMP

See the following steps to replace:
1. Remove the four screws holding the housing/

lens to the body as shown.

CHMSL Mounting Screw Locations

2. Separate the connector holding the housing

and wiring harness to the body.

CHMSL Bulb Location

CAUTION!

Do not contaminate the bulb glass by touching it

with your fingers or by allowing it to contact other

oily surfaces. Shortened bulb life will result.

8

454

SERVICING AND MAINTENANCE

3. Turn the desired bulb socket a quarter turn

counterclockwise and remove the socket and

bulb from housing.

4. Pull the desired bulb straight from the socket.



Outside Bulbs: Cargo Lamps



Inside Bulb: Center High Mounted Stop

Lamp

5. Reverse the procedure for installation of bulbs

and housing.

TIRES

T

IRE

S

AFETY

I

NFORMATION

Tire safety information will cover aspects of the

following information: Tire Markings, Tire

Identification Numbers, Tire Terminology and

Definitions, Tire Pressures, and Tire Loading.

Tire Markings

Tire Markings

NOTE:



P (Passenger) — Metric tire sizing is based on US

design standards. P-Metric tires have the letter

“P” molded into the sidewall preceding the size

designation. Example: P215/65R15 95H.



European — Metric tire sizing is based on Euro

-

pean design standards. Tires designed to this

standard have the tire size molded into the side

-

wall beginning with the section width. The letter

"P" is absent from this tire size designation.

Example: 215/65R15 96H.



LT (Light Truck) — Metric tire sizing is based on

US design standards. The size designation for

LT-Metric tires is the same as for P-Metric tires

except for the letters “LT” that are molded into

the sidewall preceding the size designation.

Example: LT235/85R16.



Temporary spare tires are designed for tempo

-

rary emergency use only. Temporary high

pressure compact spare tires have the letter “T”

or “S” molded into the sidewall preceding the

size designation. Example: T145/80D18 103M.



High flotation tire sizing is based on US design

standards and it begins with the tire diameter

molded into the sidewall.

Example: 31x10.5 R15 LT.

CAUTION!

Do not contaminate the bulb glass by touching it

with your fingers or by allowing it to contract

other oily surfaces. Shortened bulb life will

result.

1 — US DOT Safety Standards Code

(TIN)
2 — Size Designation
3 — Service Description
4 — Maximum Load
5 — Maximum Pressure
6 — Treadwear, Traction and Tempera

-

ture Grades

SERVICING AND MAINTENANCE

455

TIRE SIZING CHART

EXAMPLE:

Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
". blank. " = Passenger car tire based on European design standards, or
LT = Light truck tire based on US design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)



Ratio of section height to section width of tire, or

10.5 = Section width in inches (in)
R = Construction code



"R" means radial construction, or



"D" means diagonal or bias construction

15, 16, 18 = Rim diameter in inches (in)
Service Description:
95 = Load Index



A numerical code associated with the maximum load a tire can carry

H = Speed Symbol



A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain operating conditions



The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading,

road conditions, and posted speed limits)

8

456

SERVICING AND MAINTENANCE

Tire Identification Number (TIN)

The Tire Identification Number (TIN) may be found on one or both sides of the tire; however, the date code may only be on one side. Tires with white sidewalls

will have the full TIN, including the date code, located on the white sidewall side of the tire. Look for the TIN on the outboard side of black sidewall tires as

mounted on the vehicle. If the TIN is not found on the outboard side, then you will find it on the inboard side of the tire.

Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:



XL = Extra load (or reinforced) tire, or



LL = Light load tire or



C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure

Maximum Load – Maximum load indicates the maximum load this tire is designed to carry

Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire

EXAMPLE:

EXAMPLE:

DOT MA L9 ABCD 0301
DOT = Department of Transportation



This symbol certifies that the tire is in compliance with the US Department of Transportation tire safety standards and is approved for highway use

MA = Code representing the tire manufacturing location (two digits)
L9 = Code representing the tire size (two digits)
ABCD = Code used by the tire manufacturer (one to four digits)

SERVICING AND MAINTENANCE

457

Tire Terminology And Definitions

03 = Number representing the week in which the tire was manufactured (two digits)



03 means the 3rd week

01 = Number representing the year in which the tire was manufactured (two digits)



01 means the year 2001



Prior to July 2000, tire manufacturers were only required to have one number to represent the year in which the tire was manufactured. Example: 031 could

represent the 3rd week of 1981 or 1991

Term

Definition

B-pillar

The vehicle B-pillar is the structural member of the body located behind the front door.

Cold Tire Inflation Pressure

Cold tire inflation pressure is defined as the tire pressure after the vehicle has not been

driven for at least three hours, or driven less than 1 mile (1.6 km) after sitting for a minimum

of three hours. Inflation pressure is measured in units of PSI (pounds per square inch) or kPa

(kilopascals).

Maximum Inflation Pressure

The maximum inflation pressure is the maximum permissible cold tire inflation pressure for

this tire. The maximum inflation pressure is molded into the sidewall.

Recommended Cold Tire Inflation Pressure

The manufacturer’s recommended cold tire inflation pressure as shown on the tire placard.

Tire Placard

A label permanently attached to the vehicle describing the vehicle’s loading capacity, the

original equipment tire sizes and the recommended cold tire inflation pressures.

EXAMPLE:

8

458

SERVICING 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

Ú

page 215.

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

Ú

page 215.

SERVICING AND MAINTENANCE

459

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.
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 occu

-

pants. 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

460

SERVICING AND MAINTENANCE