2019 RAM CHASSIS CAB power steering

284 STARTING AND OPERATING
NOTE:
• Increased noise levels at the end of the steering wheel
travel are considered normal and do not indicate that there
is a problem with the power steering system.
• Upon initial start-up in cold weather, the power steering
pump may make noise for a short amount of time. This is
due to the cold, thick fluid in the steering system. This
noise should be considered normal, and it does not in any
way damage the steering system.
Power Steering Fluid Check
Checking the power steering fluid level at a defined service
interval is not required. The fluid should only be checked if
a leak is suspected, abnormal noises are apparent, and/or
the system is not functioning as anticipated. Check fluid level when the engine is cold and off. Coordinate inspection
efforts through an authorized dealer.
If necessary, add fluid to restore to the proper indicated
level. With a clean cloth, wipe any spilled fluid from all
surfaces. Refer to “Fluids And Lubricants” in “Technical
Specifications” for further information.CAUTION!
Prolonged operation of the steering system at the end of
the steering wheel travel will increase the steering fluid
temperature and it should be avoided when possible.
Damage to the power steering pump may occur. WARNING!
Fluid level should be checked on a level surface and with
the engine off to prevent injury from moving parts and
to ensure accurate fluid level reading. Do not overfill.
Use only manufacturer's recommended power steering
fluid.
CAUTION!
Do not use chemical flushes in your power steering
system as the chemicals can damage your power steering
components. Such damage is not covered by the New
Vehicle Limited Warranty.

350 STARTING AND OPERATING
GAIN Adjustment Buttons (+/-)
Pushing these buttons will adjust the brake control power
output to the trailer brakes in 0.5 increments. The GAIN
setting can be increased to a maximum of 10 or decreased to
a minimum of 0 (no trailer braking).
GAIN
The GAIN setting is used to set the trailer brake control for
the specific towing condition and should be changed as
towing conditions change. Changes to towing conditions
include trailer load, vehicle load, road conditions and
weather.
Adjusting GAIN
NOTE:
This should only be performed in a traffic free environment
at speeds of approximately 20–25 mph (30–40 km/h).
1. Make sure the trailer brakes are in good working condi -
tion, functioning normally and properly adjusted. See
your trailer dealer if necessary.
2. Hook up the trailer and make the electrical connections
according to the trailer manufacturer's instructions. 3. When a trailer with electric/EOH brakes is plugged in,
the trailer connected message should appear in the
instrument cluster display (if the connection is not recog -
nized by the ITBM, braking functions will not be avail -
able), the GAIN setting will illuminate and the correct
type of trailer must be selected from the instrument
cluster display options.
4. Push the UP or DOWN button on the steering wheel until
“TRAILER TOW” appears on the screen.
5. Push the RIGHT arrow on the steering wheel to enter
“TRAILER TOW”.
6. Push the UP or DOWN buttons until the Trailer Brake
Type appears on the screen.
7. Push the RIGHT arrow and then push the UP or DOWN
buttons until the proper Trailer Brake Type appears on
the screen.
8. In a traffic-free environment, tow the trailer on a dry,
level surface at a speed of 20–25 mph (30–40 km/h) and
squeeze the manual brake control lever completely.
9. If the trailer wheels lockup (indicated by squealing tires),
reduce the GAIN setting; if the trailer wheels turn freely,
increase the GAIN setting.

370 IN CASE OF EMERGENCY
Even if the SOS Call system is fully functional, factors
beyond FCA US LLC’s control may prevent or stop the SOS
Call system operation. These include, but are not limited to,
the following factors:
• Delayed accessories mode is active.
• The ignition is in the OFF position.
• The vehicle’s electrical systems are not intact.
• The SOS Call system software and/or hardware are
damaged during a crash. • The vehicle battery loses power or becomes disconnected
during a vehicle crash.
• LTE (voice/data) or 4G (data) network and/or Global
Positioning Satellite signals are unavailable or obstructed.
• Equipment malfunction at the SOS operator facility.
• Operator error by the SOS operator.
• LTE (voice/data) or 4G (data) network congestion.
• Weather.
• Buildings, structures, geographic terrain, or tunnels.WARNING!
• Ignoring the overhead console light could mean you
will not have SOS Call services. If the overhead console
light is illuminated, have your authorized dealer
service the SOS Call system immediately.
• The Occupant Restraint Control module turns on the
air bag Warning Light on the instrument panel if a
malfunction in any part of the system is detected. If the
Air Bag Warning Light is illuminated, have your autho -
rized dealer service the Occupant Restraint Control
system immediately.
WARNING!
ALWAYS obey traffic laws and pay attention to the road.
ALWAYS drive safely with your hands on the steering
wheel. You have full responsibility and assume all risks
related to the use of the features and applications in this
vehicle. Only use the features and applications when it is
safe to do so. Failure to do so may result in an accident
involving serious injury or death.

380 IN CASE OF EMERGENCY
3. Pull the bulb straight from it's socket and replace.
Removing The Bulb From The Bulb Socket FUSES
WARNING!
• When replacing a blown fuse, always use an appro -
priate replacement fuse with the same amp rating as the
original fuse. Never replace a fuse with another fuse of
higher amp rating. Never replace a blown fuse with
metal wires or any other material. Do not place a fuse
inside a circuit breaker cavity or vice versa. Failure to
use proper fuses may result in serious personal injury,
fire and/or property damage.
• Before replacing a fuse, make sure that the ignition is
off and that all the other services are switched off and/
or disengaged.
• If the replaced fuse blows again, contact an authorized
dealer.
• If a general protection fuse for safety systems (air bag
system, braking system), power unit systems (engine
system, transmission system) or steering system blows,
contact an authorized dealer.

384 IN CASE OF EMERGENCY
F34 30 Amp Pink – Vehicle System Interface Module #2 – If Equipped
(HD Only)
SSV (DS 1500 Only)
F35 30 Amp Pink – Sunroof – If Equipped
F36 30 Amp Pink – Electric Back Light – If Equipped
F37 30 Amp Pink – Fuel Heater #2, Aux Relay 2 – If Equipped (HD Only)
SSV (DS 1500 Only)
F38 30 Amp Pink – Integrated Trailer Brake Module – If Equipped
(HD Only)
Power Inverter 115V AC – If Equipped (DS 1500 Only)
F39 20 Amp Blue
– Power Outlet – SSV Only
F40 – 10 Amp Red Ventilated Seats – If Equipped (HD Only)
F41 – 10 Amp Red Active Grille Shutter / Active Air Dam – If Equipped
F42 – 20 Amp Yellow Horn
F43 – 15 Amp Blue Heated Steering Wheel – If Equipped (HD Only)
F44 – 10 Amp Red Diagnostic Port
F46 – 10 Amp Red Upfitters Relay Coil – If Equipped (HD Only)
Spare (DS 1500 Only)
F49 – 10 Amp Red Instrument Panel Cluster / HVAC (DS 1500 Only)
Instrument Cluster / MOD CSG (HD Only)Cavity Cartridge Fuse Micro Fuse Description

IN CASE OF EMERGENCY 387
F74 – 20 Amp Yellow Brake Vacuum Pump Gas/Diesel – If Equipped (DS 1500
Only)
F74 – 10 Amp Red Backup Alarm – If Equipped (HD Only)
F75 – 10 Amp Red ATMM / Coil-SCR Module RLY– If Equipped
(HD Only)
Coolant Temperature Valve – If Equipped
(DS 1500 Only)
F76 – 10 Amp Red Electronic Stability Control (HD Only)
Brake System Module / Stop Lamp Switch / Electric
Park Brake / Clutch Pedal Switch (DS 1500 Only)
F77 – 10 Amp Red Drivetrain Control Module / Front Axle Disconnect
Module / TCM (HD Only)
Drivetrain Control Module / ELSD / Front Axle
Disconnect Module / Transmission Control Relay /
RDM / Power Take Off Unit – If Equipped (DS 1500
Only)
F78 – 10 Amp Red Engine Control Module / Powertrain Control Module /
Electric Power Steering (DS 1500 Only)
F78 – 15 Amp Blue Engine Control Module / Powertrain Control Module /
AEB RACM MOD / Feed To AUX PDC Relay Coils (HD
Only)
F79 – 15 Amp Blue ID / Clearance LightsCavity Cartridge Fuse Micro Fuse Description
6

388 IN CASE OF EMERGENCY
F80 – 10 Amp Red Universal Garage Door Opener / Compass /
Anti-Intrusion Module (DS 1500 Only)
ASSY Overhead Console / SW Assist / SW 911 – If
Equipped (HD Only)
F81 – 20 Amp Yellow Trailer Tow Right Turn / Stop Lights - If Equipped
F82 – 10 Amp Red Steering Column Control Module / Cruise Control
F83 – – No Connection
F84 – 15 Amp Blue ASBM / HVAC / ICS / Rear Heated Seat Switches
F85 – 10 Amp Red Airbag Module
F86 – 10 Amp Red Airbag Module
F87 – 10 Amp Red Air Suspension / ITBM / Steering Column Control
Module / MOD Gateway CAN-C Trailer TPM (HD
Only)
Air Suspension / Trailer Tow / DC/DC Converter
(Voltage Stabilizer) / Steering Column Control Module
/ Occupant Classification Sensor (DS 1500 Only)
F88 – 15 Amp Blue Instrument Panel Cluster
F90/F91 – 20 Amp Yellow IGN or BATT Customer Selectable – If Equipped
(HD Only)
Power Outlet (Rear Seats) Customer Selectable (DS 1500
Only)
F93 – 20 Amp Yellow Cigar Lighter - If EquippedCavity Cartridge Fuse Micro Fuse Description

SERVICING AND MAINTENANCE 411
Once A Month Or Before A Long Trip:
• Check engine oil level.
• Check windshield washer fluid level.
• Check the tire inflation pressures and look for unusual
wear or damage. Rotate at the first sign of irregular wear.
• Check the fluid levels of the coolant reservoir, brake
master cylinder, power steering and automatic transmis -
sion (six-speed only), and fill as needed.
• Check function of all interior and exterior lights. Maintenance Plan
Required Maintenance
Refer to the maintenance plan on the following pages for
required maintenance.
At Every Oil Change Interval As Indicated By Oil Change Indicator System:
• Change oil and filter.
• Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on.
• Inspect engine cooling system protection and hoses.
• Inspect exhaust system.
• Inspect engine air cleaner if using in dusty or off-road conditions.
• Inspect battery and clean and tighten terminals as required.
• Inspect automatic transmission fluid if equipped with dipstick.
• Inspect brake pads, shoes, rotors, drums, hoses and park brake.
• Inspect front end, and lubricate — If equipped with serviceable fittings. 7