2017 Ram 3500 Chassis Cab wiring

6. Remove the two headlamp assembly attachment screws.
7. Reach into the front wheel house ahead of the frontwheel, 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.
8. Reach through the access hole of the wheel house splash shield and lift the slide lock upward far enough to
disengage it from the lock post on the back of the front
lamp unit housing. 9. Remove the headlamp assembly. Grasp the outboard
edge of the lamp and pull it straight forward to disen-
gage the ball stud from the plastic grommet.
10. Disconnect the wiring harness connectors from the bulb socket.
11. Replace bulb(s) as necessary.
Headlamp Assembly Attachment Screw Locations
Slide Lock
502 MAINTAINING YOUR VEHICLE

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 replace-
ment. An incorrect bulb size or type may overheat
and cause damage to the lamp, the bulb socket, or the
lamp wiring.
NOTE: There are access covers over both headlamp bulb
access holes in the quad front lamp unit housing (if
equipped). These covers MUST be reinstalled after the bulb
has been replaced.
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 ¼ turn to unlock the bulb from the housing.
4. Pull the bulb straight out from the housing.
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.
7
MAINTAINING YOUR VEHICLE 503

Center High-Mounted Stoplamp (CHMSL) With
Cargo Lamp
1. Remove the two screws holding the housing/lens to thebody as shown.
2. Separate the connector holding the housing and wiring harness to the body. 3. Turn the desired bulb socket ¼ turn and remove the
socket and bulb from housing.
4. Pull the desired bulb straight from the socket.
CHMSL Mounting Screw Locations
CHMSL Connector Location
504 MAINTAINING YOUR VEHICLE

Tires...........................96, 381, 386, 394
Aging (Life Of Tires) ..................... .389
Air Pressure ........................ .376, 381
Chains ............................... .390
Compact Spare ......................... .386
Dual .......................... .393, 431, 439
General Information ...................381, 386
High Speed ............................ .383
Inflation Pressures ....................... .382
Life Of Tires ........................... .389
Load Capacity ...................... .376, 378
Pressure Monitor System (TPMS) .............395
Pressure Warning Light ....................212
Quality Grading ........................ .394
Radial ............................... .384
Replacement ........................... .389
Rotation .............................. .392
Safety ............................ .370, 381
Sizes ................................ .372
Snow Tires ............................ .385
Spare Tire ......................... .386, 387
Spinning .............................. .388
Tread Wear Indicators .....................388
Wheel Nut Torque ....................... .437
Tire Safety Information ...................... .370Tongue Weight/Trailer Weight
.................413
Torque Converter Clutch .....................339
Tow Hooks, Emergency ..................... .444
Towing ............................. .409, 446
Disabled Vehicle ........................ .446
Guide ................................ .413
Recreational ........................... .423
Weight ............................... .413
Towing Vehicle Behind A Motorhome ............423
Traction ................................ .351
T
raction Control .......................... .362
Trailer Sway Control (TSC) ....................367
Trailer Towing ............................ .409
Cooling System Tips ..................... .421
Hitches ............................... .412
Minimum Requirements ....................414
Mirrors ................................111
Trailer And Tongue Weight ..................413
Wiring ............................... .419
Trailer Towing Guide ....................... .413
Trailer Weight ............................ .413
Transfer Case ............................ .483
Electronically Shifted ..................... .346
Fluid ................................ .510
Transmission ............................. .484
536 INDEX

INSTALLATION OF RADIO TRANSMITTING
EQUIPMENTSpecial 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 interfer-
ence between the communications equipment and the
vehicle’s electronic systems.