RAM CHASSIS CAB 2023 Owners Manual

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
8

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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
8

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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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SERVICING AND MAINTENANCE383
F80 –10 Amp RedOvrdh Con / Assist / 911
F81 –20 Amp YellowTrlr tow Rt turn / Stop
F82 –10 Amp RedSCCM / Cruise control
F83 –10 Amp RedTLR AST / TLR RVS CTL / TLR KNB
F84 –15 Amp Blue
ASBM / HVAC / ICS / R Heated Seats SW

F85 –10 Amp RedORC (Airbag)
F86 –10 Amp RedORC (Airbag)
F87 –10 Amp RedAir Susp / ITBM / SCCM / TLR TPM
F88 –15 Amp BlueIP Cluster
F89 ––Spare
F90 –20 Amp YellowPower Outlet / Batt
F91 ––Power Outlet / Acc
F92 –10 Amp RedInvertor MOD / USB-IP / WCPM *
F93 ––Spare
F94 –10 Amp RedSBW / TCASE SW / TRL TPM - GTWY
F95 –10 Amp RedRR CAM / PRKTRNX/ CHMSL Cam /
Bld SPT SNR / SVUE CAM *
F96 –10 Amp RedTRL Cam *
F97 –20 Amp YellowFront HTD ST PSGR *
F98 –20 Amp YellowFront HTD ST DRIVER *
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
8

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384SERVICING AND MAINTENANCE
BULB REPLACEMENT
Replacement Bulbs, Names, And Part Numbers
In the instance a bulb needs to be replaced, this section includes bulb description and replacement part numbers.
NOTE:See an authorized dealer for LED bulb replacement.F99
–10 Amp RedHVAC / IN-CARTS / CSG / TRL CWY
MOD */ TACH
F100 –10 Amp RedUpfitter Box Feed *
F101 –20 Amp YellowRR HTD ST Right *
F102 –20 Amp YellowRR HTD ST Left / Run RLY #3 *
F103 –10 Amp RedHeadLamp AFLS *
F104 –20 Amp YellowUCI Port / USB Rear
Cavity Cartridge Fuse Micro FuseDescription
* If Equipped
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.

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SERVICING AND MAINTENANCE385
Exterior Bulbs
Bulb Name Bulb Number
Low Beam (Halogen Reflector Headlamp) H11LL
High Beam (Halogen Reflector Headlamp) 9005LL
Low & High Beam LED
Low & High Beam LED
Turn Signal / Front Position (Halogen Reflector Headlamp) 7444NA
Turn Signal LED
Front Position LED
Turn Signal (LED Reflector Headlamp) 7444NA
Front Side Marker LED
Front Fog Lamps (Halogen Reflector Headlamp) H11LL
Front Fog Lamps LED
Side Indicators LED
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
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386SERVICING 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. Reach into the front wheel house ahead of the front wheel, remove the fastener, and lift the
cover over the access hole in the front of the
wheel house splash shield. Access to the rear
of the lamp can be gained through this access
hole.

Splash Shield Access Cover
4. Reach through the access hole of the wheel
house splash shield and disengage the bulb
access cover by rotating counterclockwise.

Bulb Access Cover

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
See the following steps to replace:

1. Open the hood.

2. Disconnect and isolate the negative battery cable.

Bulb Access Cover

3. Look under the hood and behind the headlamp to find the high beam bulb access
cover.
4. Reach behind the headlamp and disengage the access cover by rotating counterclockwise.
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.

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SERVICING AND MAINTENANCE387
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 covers.
Outer Park And Turn
See the following steps to replace:

1. Open the hood.

2. Disconnect and isolate the negative battery cable.
3. Reach into the front wheel house ahead of the front wheel, remove the fastener, and lift the
cover over the access hole in the front of the
wheel house splash shield. Access to the rear of the lamp can be gained through this access
hole.

Splash Shield Access Cover

4. Reach through the access hole of the wheel house splash shield and disengage the side
marker socket by rotating counterclockwise a
quarter turn.

Park And Turn Sockets
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
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

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

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388SERVICING AND MAINTENANCE
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.
CENTER HIGH MOUNTED STOP LAMP (CHMSL)
WITH CARGO LAMP
See the following steps to replace:

1. Remove the two 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 Connector Location

3. Turn the desired bulb socket a quarter turn 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.
CAB TOP CLEARANCE LAMPS — IF EQUIPPED
See the following steps to replace:

1. Remove the two screws from the top of the lamp.

Removing Rear Screw From Clearance Lamp

2. Rotate the bulb socket a quarter turn and pull it from the lamp assembly.
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.
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.

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