2020 Ram ProMaster wiring

SAFETY73
(Continued)
How To Engage The Automatic Locking Mode
1. Buckle the combination lap and shoulder
belt.
2. Grasp the shoulder portion and pull down -
ward until the entire seat belt is extracted.
3. Allow the seat belt to retract. As the seat belt retracts, you will hear a clicking sound.
This indicates the seat belt is now in the
Automatic Locking Mode.
How To Disengage The Automatic Locking Mode
Unbuckle the combination lap/shoulder belt
and allow it to retract completely to disengage
the Automatic Locking Mode and activate the
vehicle sensitive (emergency) locking mode.
Supplemental Restraint Systems (SRS)
Some of the safety features described in this
section may be standard equipment on some
models, or may be optional equipment on
others. If you are not sure, ask an authorized
dealer.
The air bag system must be ready to protect you
in a collision. The Occupant Restraint Controller
(ORC) monitors the internal circuits and inter -
connecting wiring associated with the electrical
Air Bag System Components. Your vehicle may
be equipped with the following Air Bag System
Components:
Air Bag System Components
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
Air Bag Warning Light
The Occupant Restraint Controller
(ORC) monitors the readiness of the
electronic parts of the air bag system
whenever the ignition switch is in the
AVV/START or MAR/ACC/ON/RUN position. If
the ignition switch is in the STOP/OFF/LOCK
position the air bag system is not on and the air
bags will not inflate.WARNING!
The seat belt assembly must be replaced if
the switchable Automatic Locking Retractor
(ALR) feature or any other seat belt function
is not working properly when checked
according to the procedures in the Service
Manual.
Failure to replace the seat belt assembly
could increase the risk of injury in colli -
sions.
Do not use the Automatic Locking Mode to
restrain occupants who are wearing the
seat belt or children who are using booster
seats. The locked mode is only used to
install rear-facing or forward-facing child
restraints that have a harness for
restraining the child.
WARNING!
(Continued)

4

20_VF_OM_EN_US_t.book Page 73

SAFETY79
NOTE:
Air bag covers may not be obvious in the inte -
rior trim, but they will open during air bag
deployment. Rollover Events
Side Air Bags and seat belt pretensioners are
designed to activate in certain rollover events.
The Occupant Restraint Controller (ORC) deter
-
mines whether deployment in a particular roll-
over event is appropriate, based on the severity
and type of collision. Vehicle damage by itself is
not a good indicator of whether or not Side Air
Bags and seat belt pretensioners should have
deployed.
The Side Air Bags and seat belt pretensioners
will not deploy in all rollover events. The rollover
sensing system determines if a rollover event
may be in progress and whether deployment is
appropriate. In the event the vehicle experi -
ences a rollover or near rollover event, and
deployment is appropriate, the rollover sensing
system will deploy the side air bags and seat
belt pretensioners on both sides of the vehicle.
The SABICs may help reduce the risk of partial
or complete ejection of vehicle occupants
through side windows in certain rollover or side
impact events.
Air Bag System Components
NOTE:
The Occupant Restraint Controller (ORC) moni -
tors the internal circuits and interconnecting
wiring associated with electrical Air Bag System
Components listed below:
Occupant Restraint Controller (ORC)
Air Bag Warning Light
Steering Wheel and Column
Instrument Panel
Driver and Front Passenger Air Bags
Seat Belt Buckle Switch
Supplemental Side Air Bags
Front and Side Impact Sensors
Seat Belt Pretensioners
WARNING!
Side Air Bags need room to inflate. Do not
lean against the door or window. Sit upright
in the center of the seat.
Being too close to the Side Air Bags during
deployment could cause you to be severely
injured or killed.
Relying on the Side Air Bags alone could
lead to more severe injuries in a collision.
The Side Air Bags work with your seat belt
to restrain you properly. In some collisions,
Side Air Bags won’t deploy at all. Always
wear your seat belt even though you have
Side Air Bags.4

20_VF_OM_EN_US_t.book Page 79

SAFETY81
(Continued)
NOTE:
After an accident, remember to cycle the igni -
tion to the STOP (OFF/LOCK) position and
remove the key from the ignition switch to avoid
draining the battery. Carefully check the vehicle
for fuel leaks in the engine compartment and on
the ground near the engine compartment and
fuel tank before resetting the system and
starting the engine. If there are no fuel leaks or
damage to the vehicle electrical devices (e.g.
headlights) after an accident, reset the Fuel Cut
Off Switch by following the procedure described
below. If you have any doubt, contact an autho -
rized dealer.
Fuel Cut Off Switch Reset Procedure
In order to reset the Fuel Cut Off Switch after an
event push the “A” Button located underneath
the instrument panel on the passenger side. Fuel Cut Off Switch
Maintaining Your Air Bag System
WARNING!
If, after an accident, you smell fuel or see
leaks from the fuel system, do not reset the
Fuel Cut Off Switch to avoid the risk of fire.
Before resetting the Fuel Cut Off Switch,
carefully check for fuel leaks or damage to
the vehicle electrical devices (e.g.
headlights).
WARNING!
Modifications to any part of the air bag
system could cause it to fail when you need
it. You could be injured if the air bag system
is not there to protect you. Do not modify
the components or wiring, including adding
any kind of badges or stickers to the
steering wheel hub trim cover or the upper
passenger side of the instrument panel. Do
not modify the front bumper, vehicle body
structure, or add aftermarket side steps or
running boards.
It is dangerous to try to repair any part of
the air bag system yourself. Be sure to tell
anyone who works on your vehicle that it
has an air bag system.
4

20_VF_OM_EN_US_t.book Page 81

108STARTING AND OPERATING
While audible signals are emitted, the audio
system is not muted.
The audible signal is turned off immediately if
the distance increases. The tone cycle remains
constant if the distance measured by the inner
sensors is constant. If this condition occurs for
the external sensors, the signal is turned off
after three seconds (stopping warnings during
maneuvers parallel to walls).
ParkSense Rear Park Assist Failure
Indications
A malfunction of the ParkSense Rear Park
Assist sensors or system is indicated, during
REVERSE gear engagement, by the instrument
panel warning icon.
The warning icon is illuminated and a
message is displayed in the instru -
ment cluster display (if equipped).
Refer to “Warning Lights And
Messages” in “Getting To Know Your Instru -
ment Panel” for further information.
The sensors and wiring are tested continuously
when the ignition is in the MAR (ACC/ON/RUN)
position. Failures are indicated immediately if
they occur when the system is on. Even if the system is able to identify that a
specific sensor is in failure condition, the instru
-
ment cluster display shall indicate that the Park-
Sense Rear Park Assist system is unavailable,
without reference to the sensor in failure condi -
tion. If even a single sensor fails, the entire
system must be disabled. The system is turned
off automatically.
Cleaning The ParkSense System
Clean the Rear Park Assist sensors with water,
car wash soap and a soft cloth. Do not use
rough or hard cloths. In washing stations, clean
sensors quickly keeping the vapor jet/high pres -
sure washing nozzles at least 4 inches (10 cm)
from the sensors. Do not scratch or poke the
sensors. Otherwise, you could damage the
sensors.
ParkSense Rear Park Assist System Usage
Precautions
NOTE:
Ensure that the outer surface and the under -
side of the rear bumper is clean and clear of
snow, ice, mud, dirt or other obstruction to
keep the Rear Park Assist system operating
properly.
Jackhammers, large trucks, and other vibra -
tions could affect the performance of Rear
Park Assist.
Clean the Rear Park Assist sensors regularly,
taking care not to scratch or damage them.
The sensors must not be covered with ice,
snow, slush, mud, dirt or debris. Failure to do
so can result in the system not working prop -
erly. The Rear Park Assist system might not
detect an obstacle behind the fascia/
bumper, or it could provide a false indication
that an obstacle is behind the fascia/
bumper.
Objects such as bicycle carriers, etc., must
not be placed within 12 inches (30 cm) from
the rear fascia/bumper while driving the
vehicle. Failure to do so can result in the
system misinterpreting a close object as a
sensor problem, causing a failure indication
to be displayed in the instrument cluster
display.

20_VF_OM_EN_US_t.book Page 108

118STARTING AND OPERATING
Towing Requirements — Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the
trailer size, stoplights and turn signals on the
trailer are required for motoring safety.
The Trailer Tow Package may include a four- and
seven-pin wiring harness. Use a factory
approved trailer harness and connector.
Trailer Electrical Connector Location
NOTE:
Do not cut or splice wiring into the vehicle’s
wiring harness.
The electrical connections are all complete to
the vehicle but you must mate the harness to a
trailer connector. Refer to the following illustra -
tions. NOTE:Disconnect trailer wiring connector from the
vehicle before launching a boat (or any other
device plugged into vehicle’s electrical
connect) into water.
Be sure to reconnect after clear from water
area.
Four-Pin Connector Seven-Pin Connector
Towing Tips
Before setting out on a trip, practice turning,
stopping, and backing up the trailer in an area
located away from heavy traffic.
1 — Four-Pin Connector Location
2 — Seven-Pin Connector Location1 — Female Pins
2 — Male Pin
3 — Ground
4 — Tail Lamp
5 — Left Stop/Turn
6 — Right Stop/Turn
1 — Battery
2 — Backup Lamps
3 — Right Stop/Turn
4 — Electric Brakes
5 — Ground
6 — Left Stop/Turn
7 — Tail Lamp

20_VF_OM_EN_US_t.book Page 118

256

Sentry Key (Immobilizer)

............................. 12
Service Assistance
.................................. 246
Service Contract
.................................... 247
Service Manuals
.................................... 249
Settings
Personal......................................... 199
Shift Lever Override
................................. 148
Shoulder Belts
......................................... 67
Signals, Turn
.................................... 53, 91
Snow Chains (Tire Chains)
......................... 184
Snow Tires
........................................... 181
Spare Tires
.......................... 181, 182, 183
Spark Plugs
.......................................... 195
Speed Control (Cruise Control)
.................... 103
Starting
................................................ 92Automatic Transmission....................... 92Button............................................. 11Cold Weather..................................... 92Engine Fails To Start............................ 92
Steering
................................................ 21Column Lock..................................... 21Power.................................... 102, 103
Steering Wheel Audio Controls
.................... 238
Storage, Vehicle
............................... 33, 186
Storing Your Vehicle
................................ 186
Supplemental Restraint System – Air Bag
......... 74
Sway Control, Trailer
.................................. 61
Synthetic Engine Oil
................................ 159
T

Telescoping Steering Column
........................ 21
Tire And Loading Information Placard
............. 173
Tire Markings
........................................ 168
Tire Safety Information
............................. 168
Tire Service Kit
...... 139, 140, 142, 143, 144
Tires
............................ 91, 176, 181, 185Aging (Life Of Tires)........................... 179Air Pressure.....................................176Chains........................................... 184Changing................................ 133, 168Compact Spare................................ 181General Information.................. 176, 181High Speed.....................................177Inflation Pressure............................. 177Jacking................................... 133, 168Life Of Tires.....................................179Load Capacity.......................... 173, 174Pressure Monitoring System (TPMS).. 50, 61Quality Grading................................ 185Radial............................................ 178Replacement................................... 179Rotation......................................... 185Safety.................................... 168, 176
Sizes............................................. 169Snow Tires..................................... 181Spare Tires...................... 181, 182, 183Spinning........................................ 178Trailer Towing.................................. 117Tread Wear Indicators....................... 179Wheel Nut Torque............................ 191
To Open Hood
......................................... 36
Tongue Weight/Trailer Weight
.................... 115
Torque Converter Clutch
........................... 102
Towing
........................................113, 149Disabled Vehicle.............................. 149Guide............................................ 115Recreational................................... 120Weight........................................... 115
Towing Behind A Motorhome
...................... 120
Traction
.............................................. 121
Traction Control
...................................... 60
Trailer Sway Control (TSC)
........................... 61
Trailer Towing
....................................... 113Cooling System Tips.......................... 119Hitches.......................................... 114Minimum Requirements.................... 116Tips.............................................. 118Trailer And Tongue Weight.................. 115Wiring........................................... 118
Trailer Towing Guide
............................... 115
Trailer Weight
....................................... 115
20_VF_OM_EN_US_t.book Page 256