2023 RAM CHASSIS CAB Owners Manual

SERVICING AND MAINTENANCE375
Required Maintenance For Noise Control
Systems
The following maintenance services must be
performed every six months or 7,500 miles
(12,000 km) whichever comes first, to ensure
proper operation of the noise control systems. In
addition, inspection and service should be
performed anytime a malfunction is observed or
suspected. Proper maintenance of the entire
vehicle will help the effectiveness of the noise
control systems.
Exhaust System
Inspect the entire exhaust system for leaks and
damaged parts. Devices such as hangers, clamps,
and U-bolts should be tight and in good condition.
Damaged components, burned or blown out
mufflers, burned or rusted out exhaust pipes
should be replaced according to the procedures
and specifications outlined in the appropriate
service manual. Air Cleaner Assembly
Inspect air cleaner housing for proper assembly
and fit. Make certain that the air cleaner is properly
positioned and that the cover is tight. Check all
hoses leading to the air cleaner for tightness. The
air filter element must also be clean and serviced
according to the instructions outlined in the
Scheduled Maintenance section of this manual.
Tampering With Noise Control System
Prohibited
Federal law prohibits the following acts or the
causing thereof: (1) the removal or rendering
inoperative by any person, other than for purposes
of maintenance, repair, or replacement, of any
device or element of design incorporated into any
new vehicle for the purpose of noise control prior to
its sale or delivery to the ultimate purchaser or
while it is in use, or (2) the use of the vehicle after
such device or element of design has been
removed or rendered inoperative by any person.
Among those acts presumed to constitute
tampering are the following:
AIR CLEANER

Removal of the air cleaner.
Removal of the air cleaner filter element from
the air cleaner housing.
Removal of the air ducting. EXHAUST SYSTEM

Removal of, or rendering inoperative exhaust
system components including the muffler or tail -
pipe.
ENGINE COOLING SYSTEM
Removal of, or rendering inoperative the fan
clutch.
Removal of the fan shroud.
Noise Emission Warranty
The manufacturer warrants that this vehicle as
manufactured by the manufacturer, was designed,
built and equipped to conform at the time it left the
manufacturer's control with all applicable US EPA
Noise Control Regulations.
This warranty covers this vehicle as designed, built
and equipped by the manufacturer, and is not
limited to any particular part, component or system
of the vehicle manufactured by the manufacturer.
Defects in design, assembly or in any part,
component or system of the vehicle as
manufactured by the manufacturer, which, at the
time it left the manufacturer's control, caused
noise emissions to exceed Federal standards, are
covered by this warranty for the life of the vehicle.
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376SERVICING AND MAINTENANCE
Maintenance Log and Service Chart (Diesel Engines)
Noise Systems Maintenance Chart and Service Log — Insert Month, Day, Year under column mileage closest to the mileage at which service was performed.
MILES
7,500 15,000 22,500 30,000 37,500 45,000 52,500 60,000

KILOMETERS
12,000 24,000 36,000 48,000 60,000 72,000 84,000 96,000

Exhaust system-inspect
Air cleaner assembly-inspect
ODOMETER READING
PERFORMED BY
PERFORMED AT
MILES
67,500 75,000 82,500 90,000 97,500 105,000 112,500 120,000

KILOMETERS
108,000 120,000 132,000 144,000 156,000 168,000 180,000 192,000

Exhaust system-inspect
Air cleaner assembly-inspect
ODOMETER READING
PERFORMED BY
PERFORMED AT

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SERVICING AND MAINTENANCE377
FUSES
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 using power outlets for
extended periods of time with the engine off may
result in vehicle battery discharge.

Blade Fuses
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.
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.
The use of a fuse with a rating other than indi -
cated 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. Never replace a
blown fuse with metal wires or any other mate -
rial. 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.
1 — Fuse Element
2 — Blade Fuse with a good/functional fuse
element
3 — Blade fuse with a bad/not functional fuse
element (blown fuse)
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.
If it is necessary to wash the engine compart -
ment, take care not to directly hit the fuse box
or the windshield wiper motor with water.
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378SERVICING AND MAINTENANCE
Power Distribution Center Location
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
F01 ––Spare
F02 60 Amp Yellow –ABS Pump Mtr
F03 60 Amp Yellow –Rad Fan HI / Lo *

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SERVICING AND MAINTENANCE379
F04 50 Amp Red –400W Inverter
F05 50 Amp Red –Air Suspension Comp
F06 40 Amp Green –STOM
F07 40 Amp Green –Starter Solenoid
F08 20 Amp Blue –NOX Sensor *
F09 30 Amp Pink
–Gas – Brake Vacuum Pump *
40 Amp Green Diesel – Fuel Heater *
F10 40 Amp Green –CBC #2 / Ext Lights
F11 40 Amp Green –Brake SYS MOD ECU & Valves
F12 40 Amp Green –CBC #3 / Pwr Locks
F13 40 Amp Green –HVAC Blwr Mtr
F14 40 Amp Green –CBC #4 / Ext Light
F15 30 Amp Pink –Power Side Step *
F16 30 Amp Pink –Smart - Bar Module *
F17 30 Amp Pink –Winch *
F18 ––Spare
F19 30 Amp Pink –Diesel SCR Feed *
F20 30 Amp Pink –Passenger Door Mod
F21 30 Amp Pink –DTCM
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
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380SERVICING AND MAINTENANCE
F22 20 Amp Blue
–Gas – ECM *
25 Amp White Diesel – PCM *
F23 30 Amp Pink –CBC #1 / Int Light
F24 30 Amp Pink –Driver Door Mod
F25 30 Amp Pink –FT Wiper
F26 ––Spare
F27 ––Spare
F28 20 Amp Blue –TRLR Tow B / U
F29 20 Amp Blue –TRLR TOW PARK
F30 30 Amp Pink –TRLR Tow
F31 ––Spare
F32 ––Spare
F33 20 Amp Blue –Trans Control Mod *
F34 30 Amp Pink –VSIM #2 *
F35 30 Amp Pink –Sunroof *
F36 30 Amp Pink –Rear Defroster (EBL) *
F37 30 Amp Pink –Diesel Frame / Fuel HTR *
F38 30 Amp Pink –ITBM *
F39 ––Spare
F40 –10 Amp RedVented Seats *
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped

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SERVICING AND MAINTENANCE381
F41 –10 Amp RedAct Grille Shutter / Dam *
F42 –20 Amp YellowHorn
F43 –15 Amp BlueHeated Strng Wheel *
F44 –10 Amp RedDiagnostic Port
F45 ––Spare
F46 –10 Amp RedUpfitters Relay Coils *
F47 ––Spare
F48 ––Spare
F49 –15 Amp BlueIP Cluster / CSG
F50 –20 Amp YellowAir Suspension Mod *
F51 –10 Amp RedIGN Mod / KINMod / RFHub
F52 –5 Amp TanBatt Snsr
F53 –20 Amp YellowTrlr Tow – Lt Turn/Stop
F54 –20 Amp YellowNon-Memory Adj Pedals *
F55 –10 Amp RedFwd Utility Lamps
F56 –10 Amp RedVBV
F57 –20 Amp YellowTCM / PCM / Trans PRSR SW
F58 –10 Amp RedBed Lighting
F59 ––Spare
F60 ––Spare
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
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382SERVICING AND MAINTENANCE
F61 –10 Amp RedNH3 Sensor / PM Sensor *
F62 –10 Amp RedA/C Clutch
F63 –20 Amp YellowIgnition Coils / CAPS
F64 –25 Amp ClearFuel Injectors / PCM *
F65 –10 Amp RedRVDMP / MOD BLE *
F66 –10 Amp RedSunroof / USB RR * / RR Mirror/
Passenger Wind SW
F67 –10 Amp RedUCI / TRLR 360 Cam/ Tach *
F68 –10 Amp RedAEB RACAM HTR *
F69 –15 Amp BlueSCR Mod 12 Volt *
F70 –30 Amp GreenFuel Pump Mtr / Fuel Htr RLY
F71 –25 Amp ClearAmp / Act Noise Cnsl
F72 ––Spare
F73 –20 Amp YellowFuel Transfer Pump *
F74 –10 Amp RedBackup Alarm
F75 –10 Amp RedSCR RLY / ATMM *
F76 –10 Amp RedElectronic Stability Control (ESC) *
F77 –10 Amp RedDTCM / TCM / FAD MOD / STOM
F78 –15 Amp BlueECM / PCM / IRCM / AUX Relay
Feed / HRLS
F79 –15 Amp BlueID / Clearance Lt
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped

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