2020 Ram 1500 wiring

IN CASE OF EMERGENCY 441
NOTE:
It may be necessary to remove/reposition Air Cleaner
Assembly to access passenger side headlamp/side marker
light bulbs.
4. Disengage the side marker socket by rotating counter-clockwise a quarter turn.
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
1. Reach under and behind the front bumper to access the back of the front fog lamp housing.
2. Disconnect the fog lamp wiring harness connector from the 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. Rear Tail/Stop, Turn Signal And Backup Lamps
1. Remove the two screws and push pins retainers that pass
through the bed sheet metal.
Tail Lamp LocationsCAUTION!
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
6
2020_DT_1500_OM_US.book Page 441

442 IN CASE OF EMERGENCY
2. Pull the outboard side of the lamp rearward far enough tounsnap the two receptacles on the outboard side of the
lamp housing from the two plastic snap post retainers in
the outer box side panel.
Tail Lamp Removed
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.
1 — Tail Lamp Housing
2 — Bulb Socket LocationsCAUTION!
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.
2020_DT_1500_OM_US.book Page 442

IN CASE OF EMERGENCY 443
Center High Mounted Stop Lamp (CHMSL) With Cargo
Lamp
1. Remove the four screws holding the housing/lens to thebody as shown.
CHMSL Mounting Screw Locations 2. Separate the connector holding the housing and wiring
harness to the body.
CHMSL Connector Location
6
2020_DT_1500_OM_US.book Page 443

669
Inflation Pressure ................................................................ 526
Life Of Tires ......................................................................... 529
Load Capacity .............................................................. 521, 522
Pressure Monitoring System (TPMS) ....................... 185, 227
Quality Grading .................................................................. 538
Radial .................................................................................... 527Replacement......................................................................... 530
Rotation ................................................................................ 537
Safety............................................................................. 516, 525
Sizes....................................................................................... 517Snow Tires ............................................................................ 532
Spare Tires ............................................................ 532, 533, 534
Spinning................................................................................ 528
Trailer Towing ..................................................................... 415
Tread Wear Indicators ........................................................ 529
Wheel Nut Torque .............................................................. 546
To Open Hood ......................................................................... 105
Tongue Weight/Trailer Weight ............................................ 413
Tonneau Cover ................................................................ 150, 540
Tonneau Cover Cleaning ....................................................... 540
Towing.............................................................................. 407, 478 Disabled Vehicle.................................................................. 478
Guide..................................................................................... 413
Recreational.......................................................................... 422
Weight................................................................................... 413
Towing Behind A Motorhome .............................................. 422 Traction .....................................................................................427
Traction Control ......................................................................210
Traction Control Switch .........................................................210
Trailer Sway Control (TSC) ................................................... 210
Trailer Towing .........................................................................407 Cooling System Tips ........................................................... 421Hitches ..................................................................................411
Minimum Requirements ....................................................413
Mirrors ....................................................................................64
Tips ........................................................................................420Trailer And Tongue Weight...............................................413
Wiring ...................................................................................419
Trailer Towing Guide .............................................................413
Trailer Weight ..........................................................................413
Transfer Case ...........................................................................515 Electronically Shifted ..................................................311, 314
Fluid ...................................................................................... 556
Transmission ............................................................................304 Automatic .....................................................................304, 513
Fluid ...................................................................................... 556
Maintenance .........................................................................513
Shifting ..................................................................................302
Transporting Pets .................................................................... 285
Tread Wear Indicators ............................................................ 529
Turn Signals ....................................................... 71, 193, 438, 441
11
2020_DT_1500_OM_US.book Page 669

INSTALLATION OF RADIO TRANSMITTING
EQUIPMENT
Special design considerations are incorporated into this
vehicle’s electronic system to provide immunity to radio
frequency signals. Mobile two-way radios and telephone
equipment must be installed properly by trained person-
nel. The following must be observed during installation.
The positive power connection should be made
directly to the battery and fused as close to the battery as
possible. The negative power connection should be made
to body sheet metal adjacent to the negative battery
connection. This connection should not be fused.
Antennas for two-way radios should be mounted on
the roof or the rear area of the vehicle. Care should be
used in mounting antennas with magnet bases. Magnets
may affect the accuracy or operation of the compass on
vehicles so equipped.
The antenna cable should be as short as practical and
routed away from the vehicle wiring when possible. Use
only fully shielded coaxial cable.
Carefully match the antenna and cable to the radio to
ensure a low Standing Wave Ratio (SWR). Mobile radio equipment with output power greater than
normal may require special precautions.
All installations should be checked for possible

interference between the communications equipment
and the vehicle’s electronic systems.
Operating, servicing and maintain -
ing a passenger vehicle or off-highway
motor vehicle can expose you to chemicals
including engine exhaust, carbon monox -
ide, phthalates, and lead, which are known
to the State of California to cause cancer and
birth defects or other reproductive harm.
To minimize exposure, avoid breathing
exhaust, do not idle the engine except as
necessary, service your vehicle in a
well-ventilated area and wear gloves or
wash your hands frequently when servicing
your vehicle. For more information go to
www.P65Warnings.ca.gov/passenger-vehicle .
WARNING: