bulb Ram 3500 2017 User Guide

Your vehicle has a simple ignition actuated test, which you
can use prior to going to the test station. To check if your
vehicle’s OBD II system isready, you must do the follow-
ing:
1. Cycle the ignition to the ON mode, but do not crank or start the engine.
NOTE: If you crank or start the engine, you will have to
start this test over.
2. As soon as you cycle the ignition to the ON mode, you will see the “Malfunction Indicator Light (MIL)” symbol
come on as part of a normal bulb check.
3. Approximately 15 seconds later, one of two things will happen:
• The MIL will flash for about 10 seconds and then return
to being fully illuminated until you cycle the ignition
OFF or start the engine. This means that your vehicle’s
OBD II system is not readyand you should notproceed
to the I/M station. •
The MIL will not flash at all and will remain fully
illuminated until you place the ignition in the off posi-
tion or start the engine. This means that your vehicle’s
OBD II system is readyand you can proceed to the I/M
station.
If your OBD II system is not ready,you should see your
authorized dealer or repair facility. If your vehicle was
recently serviced or had a battery failure or replacement,
you may need to do nothing more than drive your vehicle
as you normally would in order for your OBD II system to
update. A recheck with the above test routine may then
indicate that the system is now ready.
Regardless of whether your vehicle’s OBD II system is
ready or not, if the MIL is illuminated during normal
vehicle operation you should have your vehicle serviced
before going to the I/M station. The I/M station can fail
your vehicle because the MIL is on with the engine
running.
638 MAINTAINING YOUR VEHICLE

CAUTION!
•When installing the power distribution center cover,
it is important to ensure the cover is properly posi-
tioned 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.
• When replacing a blown fuse, it is important to use
only a fuse having the correct amperage rating. The
use of a fuse with a rating other than indicated 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.
VEHICLE STORAGE
If you are storing your vehicle for more than 21 days, we
recommend that you take the following steps to minimize
the drain on your vehicle’s battery:
• Disconnect the negative cable from battery.
• Any time you store your vehicle or keep it out of service
(i.e., vacation) for two weeks or more, run the air
conditioning system at idle for about five minutes in the
fresh air and high blower setting. This will ensure
adequate system lubrication to minimize the possibility
of compressor damage when the system is started again.
REPLACEMENT BULBS
All of the inside bulbs are brass or glass-wedge base.
Aluminum base bulbs are not approved.
Interior Bulbs
Bulb Number
Overhead Console Lamps TS 212–9
Dome Lamp 7679
For lighted switches, see your authorized dealer for
replacement instructions.
688 MAINTAINING YOUR VEHICLE

Exterior Bulbs
Bulb Number
Base Quad Headlamp –
Low Beam H11LL
Base Quad Headlamp –
High Beam 9005LL
Front Turn Signal Lamp
(Base Quad Headlamp) 3157NA
Premium Bi Halogen
Projector Headlamp - Low
Beam 9005Sl+
Premium Bi Halogen
Projector Headlamp -
High Beam 9005LL
Front Turn Signal Lamp
(Premium Headlamp) LED (Serviced at autho-
rized dealer)
Fog Lamp (Horizontal
shape) 9145
Fog Lamp (Vertical shape) 9006
Center High Mounted
Stop Lamp (CHMSL) 921K
Rear Cargo Lamp 921
Bulb Number
LED Center High
Mounted Stop Lamp
(CHMSL)/Cargo Lamp LED (Serviced at autho-
rized dealer)
Cab Roof Marker Lamps 194NA
Base Rear Tail/Turn and
Stop Lamp 3157K
Premium Rear Tail/Turn
and Stop Lamp LED (Serviced at autho-
rized dealer)
Premium Backup Lamp 7440/W21W
Rear Lamp Bar ID Marker
Lamp 194
Side Marker Lamps (Dual
Rear Wheels) 194
Backup Lamp 921
Rear License Plate Lamp 194
7
MAINTAINING YOUR VEHICLE 689

BULB REPLACEMENT
NOTE:Lens fogging can occur under certain atmospheric
conditions. This will usually clear as atmospheric condi-
tions change to allow the condensation to change back into
a vapor. Turning the lamps on will usually accelerate the
clearing process.
Base Quad / Premium Bi-Halogen: Low Beam
Headlamp, High Beam Headlamp, Front Park And
Turn — If Equipped
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Remove the six plastic push-in fasteners that secure the upper radiator seal to the grille support and both fender
ledges.
4. Remove the two plastic push-in rivets that secure the upper radiator seal to the radiator.
5. Remove the upper radiator seal from the vehicle. 6. Remove the two headlamp assembly attachment screws.
7. 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.
Headlamp Assembly Attachment Screw Locations
690 MAINTAINING YOUR VEHICLE

8. Reach through the access hole of the wheel house splashshield 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.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.Slide Lock
7
MAINTAINING YOUR VEHICLE 691

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.
Rear Tail/Stop, Turn Signal And Backup Lamps
1. Remove the two screws that pass through the bed sheetmetal. 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 retain-
ers in the outer box side panel.
3. Disconnect the wiring harness connectors from the bulb socket.
4. Rotate the bulb socket counterclockwise 1/4 turn to unlock it from the housing.
5. Pull the bulb straight out of the socket.
Tail Lamp Screw Locations
Pulling Out The Tail Lamp
692 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.
6. Reverse the procedure to install the bulb and housing.
Center High-Mounted Stoplamp (CHMSL) With
Cargo Lamp
1. Remove the two screws holding the housing/lens to the body 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.
CHMSL Mounting Screw Locations
CHMSL Connector Location
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MAINTAINING YOUR VEHICLE 693

4. Pull the desired bulb straight from the socket.
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.• 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
1. Remove the two screws from the top of the lamp.
CHMSL Bulb And Socket
Removing Rear Screw From Clearance Lamp
694 MAINTAINING YOUR VEHICLE

2. Rotate the bulb socket ¼ turn and pull it from the lampassembly. 3. Pull the bulb straight from it’s socket and replace.
Removing Bulb Socket From Clearance Lamp
Removing The Bulb From The Bulb Socket
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MAINTAINING YOUR VEHICLE 695

Rear Lamp Bar ID Marker (Dual Rear Wheels) —
If Equipped
1. Loosen the two screws and the housing to gain access tothe bulb sockets.
2. Turn the socket ¼ turn counterclockwise to access the bulb.
3. Pull the bulb straight out from the socket.
4. Reverse the procedure for installation of the bulbs and housing.
Side Marker Lamps (Dual Rear Wheels) —
If Equipped
1. Push rearward on the side marker lamp assembly.
2. Pull the entire assembly from the fender.
3. Turn the socket ¼ turn counterclockwise and removefrom assembly to access the bulb.
4. Pull the bulb straight out from socket.
5. Reverse the procedure for installation of the bulbs and housing.Screw Locations
Side Marker Lamp Locations
696 MAINTAINING YOUR VEHICLE