bulb Ram 3500 2011 User Guide

the SELECT button to turn off the message. If the
problem continues, the message will appear the next time
the vehicle is started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the Malfunction Indicator Light (MIL).
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control system.
Failure to pass could prevent vehicle registration.
For states that require an Inspection and Mainte-
nance (I/M), this check verifies the “Malfunction
Indicator Light (MIL)” is functioning and is not
on when the engine is running, and that the OBD II
system is ready for testing.Normally, the OBD II system will be ready. The OBD II
system maynotbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery replace-
ment. If the OBD II system should be determined not
ready for the I/M test, your vehicle may fail the test.
Your vehicle has a simple ignition key-actuated test,
which you can use prior to going to the test station. To
check if your vehicle’s OBD II system is ready, you must
do the following:
1. Turn the ignition switch to the ON position, but do not
crank or start the engine.
2. If you crank or start the engine, you will have to start
this test over.
3. As soon as you turn the ignition switch to the ON
position, you will see the MIL symbol come on as part of
a normal bulb check.
520 MAINTAINING YOUR VEHICLE

REPLACEMENT BULBS
LIGHT BULBS – Interior Bulb No.
Overhead Console Lamps............... TS212-2
Dome Lamp...........................7679
NOTE:For lighted switches, see your authorized dealer
for replacement instructions.
All of the inside bulbs are brass or glass-wedge base.
Aluminum base bulbs are not approved.
LIGHT BULBS – Exterior Bulb No.
Backup................................ 921
Center High Mounted Stop Lamp (CHMSL)..... 921
Fog Lamp.............................9145
Dual Headlamp......................... H13
Quad Headlamp – Low Beam............... H11
Quad Headlamp – High Beam..............9005
Side Marker (Dual Headlamp).............3157KSide Marker (Quad Headlamp)............3157NA
Rear License Plate Lamp................... 194
Rear Cargo Lamp........................ 921
Rear Tail/Turn and Stop..................3157K
Cab Roof Marker Lamps.................194NA
Rear Lamp Bar ID Marker Lamp.............. 194
Side Marker Lamps (Dual Rear Wheels)........ 194
BULB REPLACEMENT
Dual or Quad Headlamp/Front Park and Turn
Signal — If Equipped
1. Open the hood.
2. Disconnect and isolate the negative battery cable.
3. Remove the four plastic push-in fasteners that secure
the upper radiator seal to the grille support and both
fender ledges.
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MAINTAINING YOUR VEHICLE 559

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
replacement. 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.
7
MAINTAINING YOUR VEHICLE 561

Fog Lamps
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
14turn 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.
Rear Tail/Stop, Turn Signal and Backup Lamps
1. Remove the two screws that pass through the bed
sheetmetal.
562 MAINTAINING YOUR VEHICLE

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
retainers 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.
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.
7
MAINTAINING YOUR VEHICLE 563

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 wir-
ing harness to the body.3. Turn the desired bulb socket
14turn and remove the
socket and bulb from housing.
4. Pull the desired bulb straight from the socket.
564 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.
•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.
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MAINTAINING YOUR VEHICLE 565

2. Rotate the socket14turn and pull it from the lamp
assembly.3. Pull the bulb straight from it’s socket and replace.
566 MAINTAINING YOUR VEHICLE

Rear Lamp Bar ID Marker (Dual Rear Wheels) — If
Equipped
1. Loosen the two screws and the housing to gain access
to the bulb sockets.2. Turn the socket
14turn 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.
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MAINTAINING YOUR VEHICLE 567

Side Marker Lamps (Dual Rear Wheels) — If
Equipped1. Push rearward on the side marker lamp assembly.
2. Pull the entire assembly from the fender.
3. Turn the socket
14turn counterclockwise and remove
from assembly to access the bulb.
4. Pull the bulb straight out from socket.
5. Reverse the procedure for installation of the bulbs and
housing.
568 MAINTAINING YOUR VEHICLE