2017 Ram ProMaster City light

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated Onboard
Diagnostic system called OBD II. This system monitors the
performance of the emissions, engine, and automatic trans-
mission control systems. When these systems are operating
properly, your vehicle will provide excellent performance
and fuel economy, as well as engine emissions well within
current government regulations.
If any of these systems require service, the OBD II system
will turn on the “Malfunction Indicator Light (MIL).” It
will also store diagnostic codes and other information to
assist your service technician in making repairs. Although
your vehicle will usually be drivable and not need towing,
see your authorized dealer for service as soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability. The
vehicle must be serviced before any emissions tests
can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Onboard Diagnostic System (OBD II) Cybersecurity
Your vehicle is required to have an Onboard Diagnostic
system (OBD II) and a connection port to allow access to
information related to the performance of your emissions
controls. Authorized service technicians may need to ac-
cess this information to assist with the diagnosis and
service of your vehicle and emissions system.
WARNING!
• ONLY an authorized service technician should con-
nect equipment to the OBD II connection port in
order to diagnose or service your vehicle.
• If unauthorized equipment is connected to the OBD
II connection port, such as a driver-behavior tracking
device, it may:
• Be possible that vehicle systems, including safety
related systems, could be impaired or a loss of
vehicle control could occur that may result in an
accident involving serious injury or death.
• Access, or allow others to access, information
stored in your vehicle systems, including personal
information.
For further information, refer to “Cybersecurity” in the
“Understanding Your Instrument Panel” section.
276 MAINTAINING YOUR VEHICLE

Loose Fuel Filler Cap Message
If the vehicle diagnostic system determines that the fuel
filler cap is loose, improperly installed, or damaged, a
“Check fuel cap” message will be displayed in the instru-
ment cluster display. Refer to “Instrument Cluster Display”
in ”Understanding Your Instrument Panel” for further
information. Tighten the gas cap until aclickingsound is
heard. This is an indication that the gas cap is properly
tightened.
Push the odometer reset button to turn the message off. If
the problem persists, the message will appear the next time
the vehicle is started. This might indicate a damaged cap. If
the problem is detected twice in a row, the system will turn
on the MIL. Resolving the problem will turn the MIL light
off.
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 may notbe 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 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 follow-
ing:
1. Cycle the ignition switch to the ON position, 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 switch to the ON position, you will see the “Malfunction Indicator Light
(MIL)” symbol come on as part of a normal bulb check.
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MAINTAINING YOUR VEHICLE 277

Brake System
In order to assure brake system performance, all brake system
components should be inspected periodically. Refer to the
“Maintenance Schedule” for the proper maintenance intervals.
WARNING!
Riding the brakes can lead to brake failure and possi-
bly a collision. Driving with your foot resting or riding
on the brake pedal can result in abnormally high brake
temperatures, excessive lining wear, and possible
brake damage. You would not have your full braking
capacity in an emergency.
Brake Master Cylinder
The fluid in the master cylinder should be checked when
performing under hood services or immediately if the
“Brake Warning Light” is illuminated.
Be sure to clean the top of the master cylinder area before
removing the cap. If necessary, add fluid to bring the fluid
level up to the requirements described on the brake fluid
reservoir. With disc brakes, fluid level can be expected to
fall as the brake pads wear. Brake fluid level should be
checked when pads are replaced. However, low fluid level
may be caused by a leak and a checkup may be needed.Use only manufacturer’s recommended brake fluid. Refer
to “Fluids, Lubricants, And Genuine Parts” in “Maintain-
ing Your Vehicle” for further information.
WARNING!
•
Use only manufacturer’s recommended brake fluid.
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for further information.
Using the wrong type of brake fluid can severely
damage your brake system and/or impair its perfor-
mance. The proper type of brake fluid for your
vehicle is also identified on the original factory
installed hydraulic master cylinder reservoir.
• To avoid contamination from foreign matter or mois-
ture, use only new brake fluid or fluid that has been
in a tightly closed container. Keep the master cylin-
der reservoir cap secured at all times. Brake fluid in
a open container absorbs moisture from the air
resulting in a lower boiling point. This may cause it
to boil unexpectedly during hard or prolonged brak-
ing, resulting in sudden brake failure. This could
result in a collision.
(Continued)
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MAINTAINING YOUR VEHICLE 293

WARNING!
Do not use volatile solvents for cleaning purposes.
Many are potentially flammable, and if used in closed
areas they may cause respiratory harm.
CAUTION!
Direct contact of air fresheners, insect repellents, sun-
tan lotions, or hand sanitizers to the plastic, painted, or
decorated surfaces of the interior may cause permanent
damage. Wipe away immediately.
CAUTION!
Damage caused by these type of products may not be
covered by your New Vehicle Limited Warranty.
CAUTION!
Do not use Alcohol and Alcohol-based and/or Keton
based cleaning products to clean leather seats, as
damage to the seat may result.
Cleaning Headlights
Your vehicle is equipped with plastic headlights and fog
lights that are lighter and less susceptible to stone breakage
than glass headlights.
Plastic is not as scratch resistant as glass and therefore
different lens cleaning procedures must be followed.
To minimize the possibility of scratching the lenses and
reducing light output, avoid wiping with a dry cloth. To
remove road dirt, wash with a mild soap solution followed
by rinsing.
Do not use abrasive cleaning components, solvents, steel
wool or other aggressive material to clean the lenses.
Glass Surfaces
All glass surfaces should be cleaned on a regular basis with
MOPAR Glass Cleaner, or any commercial household-type
glass cleaner. Never use an abrasive type cleaner. Use
caution when cleaning the inside rear window equipped
with electric defrosters or windows equipped with radio
antennas. Do not use scrapers or other sharp instrument
that may scratch the elements.
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MAINTAINING YOUR VEHICLE 299

CavityMini Fuse Description
F43 15 Amp BlueBi-Directional Washer Pump
F48 20 Amp YellowPassenger Power Windows
F50 7.5 Amp BrownKL 15 (+15) - Air-Bag
F51 7.5 Amp BrownKL 15 (+15) - External Mirror Adjust-
ment Command, HVAC, RVC, HWB
Coils
F37 5 Amp BeigeKL 15 (+15) - Brake Pedal Switch
(N.O.), IPC, Brake Pedal Switch
(N.C.)
F49 5 Amp BeigeKL 15 (+15) - PAM, CSS Lighting,
ECM Backlighting, TTM
F31 5 Amp BeigeKL 15a (INT A) - HWB, MCO
F47 20 Amp YellowDriver Power Windows
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MAINTAINING YOUR VEHICLE 305

LampsBulb Number
Rear Turn Signal Lamps PY21W
Rear Tail Lamps P21/5W
Rear Side Marker Lamps LED (See your authorized dealer)
Center Mount Brake Lamp W5W
Reverse Light W16W
Front Fog Lamps H11
NOTE: Numbers refer to commercial bulb types that can be purchased from your authorized dealer.
If a bulb needs to be replaced, visit your authorized dealer or refer to the applicable Service Manual.
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.
Exterior Bulbs
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.
Headlamps
To change the bulb, proceed as follows:
1. Remove the plastic cap from the back of the headlamp housing.
2. Rotate the bulb counter-clockwise.
3. Remove the bulb and replace as needed.
4. Install the bulb and rotate clockwise to lock in place.
5. Reinstall the plastic cap.
308 MAINTAINING YOUR VEHICLE

Front Turn Signal Lamps
Front
To change the bulb, proceed as follows:
1. Remove the cap from the back of the outer upperheadlamp housing.
2. Rotate the bulb counter clockwise and remove.
3. Install the bulb into socket.
4. Rotate bulb/socket clockwise into lamp locking it in place.
5. Reinstall the plastic cap.
Parking And Daytime Running Lights
To change the bulb, proceed as follows:
1. Remove the cap from the back of the outer lower headlamp housing.
2. Rotate the bulb counter clockwise and remove.
3. Install the bulb into socket, and rotate bulb/socket clockwise into lamp locking it in place.
4. Reinstall the plastic cap.
Front/Rear Side Marker Lamps
To change the bulb, proceed as follows:
The front/rear side marker lamps are LED and not ser-
viced separately. See your authorized dealer for replace-
ment of these lights.
Rear Tail, Stop, Backup And Turn Signal Lamps
The rear light clusters contain taillight, brake light, direc-
tion indicator and reverse/rear fog light bulbs. To access
the light clusters, proceed as follows:
1. Open the rear doors. or liftgate
2. Remove the screws and remove the tail lamp assembly.
3. Remove the screws and separate the backplate from the lamp housing.
4. Remove the tail, stop, or turn signal bulbs by pushing them slightly and turning counter-clockwise.
5. Remove the backup lamp bulb by pulling straight out.
6. Replace lamps as required and reinstall lamp.
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MAINTAINING YOUR VEHICLE 309

The bulbs are arranged inside the light cluster as follows:
Third Brake Light (Center Mount)
To change the bulb, proceed as follows:
1. For versions with tailgate, loosen the two fasteningscrews and extract the cluster.
2. For versions with swing doors, remove rubber plugs, remove retaining tabs and extract the cluster.
3. For versions with high roof and swing doors, remove the pressure-fit plastic guard and rubber cap using a
screwdriver, release the retaining tags as shown in the
figure and remove the unit.
4. Remove the appropriate tabs and remove the bulb holder.
5. Remove the snap-fitted bulb and replace it.
License Plate Lights
Proceed as follows to replace the bulbs:
1. Disengage the holding tabs and remove the lens by lifting to the left. 2. Remove the bulbs by releasing them from the side
contacts; insert the new bulbs and make sure they are
correctly clamped between these contacts.
Interior Bulbs
Dome Lamp With Spot Lights
To change the bulbs, proceed as follows:
1. Remove dome lamp by depressing the tabs located bythe arrows, using a suitable tool.
Dome Lamp Assembly
310 MAINTAINING YOUR VEHICLE