2020 Ram ProMaster City maintenance

264 SERVICING AND MAINTENANCE
15 Way Vehicle Connector Functions and ViewConnector Pin Numbers Upfitter Connector
PIN
Function
1 Not Connected
2 Alternator System Charging In Process Signal
3 Vehicle Speed Repetition (VSO) 4 Not Connected
5 Not Connected
6 Not Connected
7 Additional Courtesy Light8 Courtesy Lights Negative Control (Dimmed)
9 Not Connected
10 Not Connected
11 Not Connected
12 Not Connected
13 Power Supply At Key On (+Ignition) 14 Not Connected
15 Not Connected
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SERVICING AND MAINTENANCE 265
This connector is supplied to the upfitter when the vehicle is
ordered with the applicable package.
2 Way Vehicle Connector Functions and ViewConnector Pins Upfitter Connector
This connector is supplied to the upfitter when the vehicle is
ordered with the applicable package.
For additional questions about these connectors as well as
general technical questions about upfitting your Ram
product, refer to https://www.ramtrucks.com/
ram-commercial/body-builders-guide.html/ or call 1
(866)-205-4102.
PIN
Function
A Power Supply B GND
CAUTION!
The maximum current load allowed is 15 amps for
continuous use.
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266 SERVICING AND MAINTENANCE
RAISING THE VEHICLE
In the case where it is necessary to raise the vehicle, go to an
authorized dealer or service station.
TIRES
Tire Safety Information
Tire safety information will cover aspects of the following
information: Tire Markings, Tire Identification Numbers,
Tire Terminology and Definitions, Tire Pressures, and Tire
Loading.Tire Markings
Tire Markings
1 — US DOT Safety Standards Code (TIN)
2 — Size Designation
3 — Service Description
4 — Maximum Load
5 — Maximum Pressure
6 — Treadwear, Traction and Temperature Grades
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NOTE:
• P (Passenger) — Metric tire sizing is based on US designstandards. P-Metric tires have the letter “P” molded into
the sidewall preceding the size designation. Example:
P215/65R15 95H.
• European — Metric tire sizing is based on European design standards. Tires designed to this standard have the
tire size molded into the sidewall beginning with the
section width. The letter "P" is absent from this tire size
designation. Example: 215/65R15 96H.
• LT (Light Truck) — Metric tire sizing is based on US design standards. The size designation for LT-Metric tires is the
same as for P-Metric tires except for the letters “LT” that
are molded into the sidewall preceding the size designa -
tion. Example: LT235/85R16. • Temporary spare tires are designed for temporary emer
-
gency use only. Temporary high pressure compact spare
tires have the letter “T” or “S” molded into the sidewall
preceding the size designation. Example: T145/80D18
103M.
• High flotation tire sizing is based on US design standards and it begins with the tire diameter molded into the side -
wall. Example: 31x10.5 R15 LT.
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268 SERVICING AND MAINTENANCE
Tire Sizing Chart EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
"....blank...." = Passenger car tire based on European design standards, or
LT = Light truck tire based on US design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)
• Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
• "R" means radial construction, or
• "D" means diagonal or bias construction
15, 16, 18 = Rim diameter in inches (in)
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Service Description:
95 = Load Index
• A numerical code associated with the maximum load a tire can carry
H = Speed Symbol
• A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load index under certain oper -
ating conditions
• The maximum speed corresponding to the speed symbol should only be achieved under specified operating conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)
Load Identification:
Absence of the following load identification symbols on the sidewall of the tire indicates a Standard Load (SL) tire:
• XL = Extra load (or reinforced) tire, or
• LL = Light load tire or
• C, D, E, F, G = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum Load – Maximum load indicates the maximum load this tire is designed to carry
Maximum Pressure – Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire EXAMPLE:
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270 SERVICING AND MAINTENANCE
Tire Identification Number (TIN)
The Tire Identification Number (TIN) may be found on one or both sides of the tire; however, the date code may only be on
one side. Tires with white sidewalls will have the full TIN, including the date code, located on the white sidewall side of the
tire. Look for the TIN on the outboard side of black sidewall tires as mounted on the vehicle. If the TIN is not found on the
outboard side, then you will find it on the inboard side of the tire.EXAMPLE:
DOT MA L9 ABCD 0301
DOT = Department of Transportation
• This symbol certifies that the tire is in compliance with the US Department of Transportation tire safety standards and is approved for highway use
MA = Code representing the tire manufacturing location (two digits)
L9 = Code representing the tire size (two digits)
ABCD = Code used by the tire manufacturer (one to four digits)
03 = Number representing the week in which the tire was manufactured (two digits)
• 03 means the 3rd week
01 = Number representing the year in which the tire was manufactured (two digits)
• 01 means the year 2001
• Prior to July 2000, tire manufacturers were only required to have one number to represent the year in which the tire was manufactured. Example: 031 could represent the 3rd week of 1981 or 1991
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SERVICING AND MAINTENANCE 271
Tire Terminology And DefinitionsTerm Definition
B-Pillar The vehicle B-Pillar is the structural member of the body located behind
the front door.
Cold Tire Inflation Pressure Cold tire inflation pressure is defined as the tire pressure after the vehicle
has not been driven for at least three hours, or driven less than 1 mile
(1.6 km) after sitting for a minimum of three hours. Inflation pressure is
measured in units of PSI (pounds per square inch) or kPa (kilopascals).
Maximum Inflation Pressure The maximum inflation pressure is the maximum permissible cold tire
inflation pressure for this tire. The maximum inflation pressure is
molded into the sidewall.
Recommended Cold Tire Inflation Pressure Vehicle manufacturer's recommended cold tire inflation pressure as
shown on the tire placard.
Tire Placard A label permanently attached to the vehicle describing the vehicle’s
loading capacity, the original equipment tire sizes and the recommended
cold tire inflation pressures.
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