1999 DODGE RAM Service Repair Manual

Fig. 19: Interior Fuse Panel
Courtesy of Chrysler Corp.
Fuse & Circuit Breaker Identification

F1 - Not Used
F2 - 30 Amp (Lt. Green)
Blower Motor
CB1 - 30 Amp (Circuit Breaker)
Power Windows
CB2 - 30 Amp (Circuit Breaker)
Power Seats
1 - 20 Amp (Yellow)
Power Outlet
2 - Not Used
3 - Not Used
4 - Not Used
5 - 20 Amp (Yellow)
Cigar Lighter
6 - 20 Amp (Yellow)
Turn Signal Flasher
7 - 15 Amp (Lt. Blue)
Radio
8 - 20 Amp (Yellow)
Windshield Wipers
9 - 10 Amp (Red)
Fuel Pump Relay, A/C Compressor Clutch Relay
Automatic Shutdown Relay, Transmission Overdrive
Solenoid, EGR Solenoid, Powertrain Control Module (PCM)
Ignition Module
High Pressure Fuel Shut-Off Solenoid Relay (CNG Models Only)
EGR Solenoid (CNG Models Only)
10 - Not Used
Vehicle Speed Control
11 - 10 Amp (Red)
Buzzer, Overhead Console
12 - 15 Amp (Lt. Blue)
Airbag Diagnostic Module, Cluster, Message Center,
13 - 5 Amp (Tan)
Illumination
14 - 20 Amp (Yellow)
RWAL and ABS Module
15 - 15 Amp (Lt. Blue)
Automatic Day/Night Mirror, Back-up Lights,
Daytime Running Lamps
16 - 15 Amp (Lt. Blue)
Airbag Diagnostic Module
17 - 15 Amp (Lt. Blue)
Ignition Off Draw, Radio and Clock Memory
18 - 15 Amp (Lt. Blue)
Parking Lamps
19 - 20 Amp (Yellow)
Power Door Locks
20 - 15 Amp (Lt. Blue)
Stop Lamps
POWER DISTRIBUTION CENTER

Fig. 20: Underhood Power Distribution Center
Courtesy of Chrysler Corp.
WARNING: Always disconnect battery ground cable before servicing
"high-current fuses. It is recommended that "high-current"
fuses be replaced by a qualified technician.
Power Distribution Center Relay & Fuse Identification
A - Starter Relay
B - Trailer Lights Relay
C - Auto Transmission Relay
D - Anti-Lock Brake System Relay
E - Auto Shutdown Relay
F - Air Conditioning Clutch Relay
G - Horn Relay
H - Fuel System Relay
J - ABS Warning Light Relay
K - Fog Lamp 2 Relay
L - Fog Lamp 1 Relay
1 - 30 Amp (Pink)
Engine Control
2 - 40 Amp (Green)
Ignition Run/Accessory
3 - 40 Amp (Green)
Ignition Run
4 - 50 Amp (Red)
Instrument Panel, Horn, Parking Lights
5 - 20 Amp (Blue)
Fuel Pump
6 - 30 Amp (Pink)
Trailer Lights
7 - 40 Amp (Green)
Stop/Headlight
8 - 40 Amp (Green)
ABS Pump
9 - 20 Amp (Yellow)
Hazard Lights
10 - 20 Amp (Yellow)
Horn/AC
11 - 15 Amp (Blue)

METR IC C O NVER SIO NS

1999 D odge P ic ku p R 1500
GENERAL INFORMATION
METRIC CONVERSIONS
METRIC CONVERSIONS
Metric conversions are making life more difficult for the
mechanic. In addition to doubling the number of tools required,
metric-dimensioned nuts and bolts are used alongside English
components in many new vehicles. The mechanic has to decide which tool
to use, slowing down the job. The tool problem can be solved by trial
and error, but some metric conversions aren't so simple. Converting
temperature, lengths or volumes requires a calculator and conversion
charts, or else a very nimble mind. Conversion charts are only part of
the answer though, because they don't help you "think" metric, or
"visualize" what you are converting. The following examples are
intended to help you "see" metric sizes:
LENGTH
Meters are the standard unit of length in the metric system.
The smaller units are 10ths (decimeter), 100ths (centimeter), and
1000ths (millimeter) of a meter. These common examples might help you
to visualize the metric units:
* A meter is slightly longer than a yard (about 40 inches).
* An aspirin tablet is about one centimeter across (.4 inches).
* A millimeter is about the thickness of a dime.
VOLUME
Cubic meters and centimeters are used to measure volume, just
as we normally think of cubic feet and inches. Liquid volume
measurements include the liter and milliliter, like the English quarts
or ounces.
* One teaspoon is about 4 cubic centimeters.
* A liter is about one quart.
* A liter is about 61 cubic inches.
WEIGHT
The metric weight system is based on the gram, with the most
common unit being the kilogram (1000 grams). Our comparable units are
ounces and pounds:
* A kilogram is about 2.2 pounds.
* An ounce is about 28 grams.
TORQUE
Torque is somewhat complicated. The term describes the amount
of effort exerted to turn something. A chosen unit of weight or force
is applied to a lever of standard length. The resulting leverage is
called torque. In our standard system, we use the weight of one pound
applied to a lever a foot long, resulting in the unit called a foot-
pound. A smaller unit is the inch-pound (the lever is one inch long).
Metric units include the meter kilogram (lever one meter long
with a kilogram of weight applied) and the Newton-meter (lever one

meter long with force of one Newton applied). Some conversions are:
* A meter kilogram is about 7.2 foot pounds.
* A foot pound is about 1.4 Newton-meters.
* A centimeter kilogram (cmkg) is equal to .9 inch pounds.
PRESSURE
Pressure is another complicated measurement. Pressure is
described as a force or weight applied to a given area. Our common
unit is pounds per square inch. Metric units can be expressed in
several ways. One is the kilogram per square centimeter (kg/cm
).
Another unit of pressure is the Pascal (force of one Newton on an area
of one square meter), which equals about 4 ounces on a square yard.
Since this is a very small amount of pressure, we usually see the
kiloPascal, or kPa (1000 Pascals). Another common automotive term for
pressure is the bar (used by German manufacturers), which equals 10
Pascals. Thoroughly confused? Try the examples below:
* Atmospheric pressure at sea level is about 14.7 psi.
* Atmospheric pressure at sea level is about 1 bar.
* Atmospheric pressure at sea level is about 1 kg/cm
.
* One pound per square inch is about 7 kPa.
CONVERSION FACTORS
CONVERSION FACTORS
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TO CONVERT TO  MULTIPLY BY 
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LENGTH
  

Millimeters (mm) Inches  .03937 

Inches Millimeters  25.4 

Meters (M) Feet  3.28084 

Feet Meters  .3048 

Kilometers(Km) Miles  .62137 
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AREA
  

Square Centimeters (cm) Square Inches  .155 

Square Inches Square Centimeters  6.45159 
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VOLUME
  

Cubic Centimeters Cubic Inches  .06103 

Cubic Inches Cubic Centimeters  16.38703 

Liters Cubic Inches  61.025 

Cubic Inches Liters  .01639 

Liters Quarts  1.05672 

Quarts Liters  .94633 

Liters Pints  2.11344 

Pints Liters  .47317 

Liters Ounces  33.81497 

Ounces Liters  .02957 
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WEIGHT
  

Grams Ounces  .03527 

Ounces Grams  28.34953 

Kilograms Pounds  2.20462 

Pounds Kilograms  .45359 
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WORK
  

Centimeter Kilograms Inch Pounds  .8676 

Pounds/Sq. Inch Kilograms/Sq.Centimeter .07031 

Bar Pounds/Sq. Inch  14.504 

Pounds/Sq. Inch Bar  .06895 

Atmosphere Pounds/Sq. Inch  14.696 

Pounds/Sq. Inch Atmosphere  .06805 
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TEMPERATURE
  

Centigrade Degrees Fahrenheit Degrees (Cx(9)/5)+32 

Fahrenheit Degrees Centigrade Degrees (F-32)x(5)/9 
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CONVERSION FACTORS (Cont.)
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INCHES DECIMALS mm

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1/64 ...................... .016 ........................ .397 

1/32 ...................... .031 ........................ .794 

3/64 ...................... .047 ....................... 1.191 

1/16 ...................... .063 ....................... 1.588 

5/64 ...................... .078 ....................... 1.984 

3/32 ...................... .094 ....................... 2.381 

7/64 ...................... .109 ....................... 2.778 

1/8 ....................... .125 ....................... 3.175 

9/64 ...................... .141 ....................... 3.572 

5/32 ...................... .156 ....................... 3.969 

11/64 ..................... .172 ....................... 4.366 

3/16 ...................... .188 ....................... 4.763 

13/64 ..................... .203 ....................... 5.159 

7/32 ...................... .219 ....................... 5.556 

15/64 ..................... .234 ....................... 5.953 

1/4 ....................... .250 ....................... 6.350 

17/64 ..................... .266 ....................... 6.747 

9/32 ...................... .281 ....................... 7.144 

19/64 ..................... .297 ....................... 7.541 

5/16 ...................... .313 ....................... 7.938 

21/64 ..................... .328 ....................... 8.334 

11/32 ..................... .344 ....................... 8.731 

23/64 ..................... .359 ....................... 9.128 

3/8 ....................... .375 ....................... 9.525 

25/64 ..................... .391 ....................... 9.992 

13/32 ..................... .406 ...................... 10.319 

27/64 ..................... .422 ...................... 10.716 

7/16 ...................... .438 ...................... 11.113 

29/64 ..................... .453 ...................... 11.509 

15/32 ..................... .469 ...................... 11.906 

31/64 ..................... .484 ...................... 12.303 

1/2 ....................... .500 ...................... 12.700 

33/64 ..................... .516 ...................... 13.097 

17/32 ..................... .531 ...................... 13.494 

35/64 ..................... .547 ...................... 13.891 

9/16 ...................... .563 ...................... 14.288 

37/64 ..................... .578 ...................... 14.684 

19/32 ..................... .594 ...................... 15.081 

39/64 ..................... .609 ...................... 15.478 

5/8 ....................... .625 ...................... 15.875 

41/64 ..................... .641 ...................... 16.272 

21/32 ..................... .656 ...................... 16.669 

43/64 ..................... .672 ...................... 17.066 

11/16 ..................... .687 ...................... 17.463 

45/64 ..................... .703 ...................... 17.859 

23/32 ..................... .719 ...................... 18.256 

47/64 ..................... .734 ...................... 18.653 

3/4 ....................... .750 ...................... 19.050 

49/64 ..................... .766 ...................... 19.447 

25/32 ..................... .781 ...................... 19.844 

51/64 ..................... .797 ...................... 20.241 

13/16 ..................... .813 ...................... 20.638 

53/64 ..................... .828 ...................... 21.034 

27/32 ..................... .844 ...................... 21.431 

55/64 ..................... .859 ...................... 21.828 

7/8 ....................... .875 ...................... 22.225 

57/64 ..................... .891 ...................... 22.622 

29/32 ..................... .906 ...................... 23.019 

59/64 ..................... .922 ...................... 23.416 

15/16 ..................... .938 ...................... 23.813 

61/64 ..................... .953 ...................... 24.209 

31/32 ..................... .969 ...................... 24.606 

63/64 ..................... .984 ...................... 25.003 

1 ......................... 1.000 ..................... 25.400 
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MIR RO RS - P O W ER

1999 D odge P ic ku p R 1500
1999 ACCESSORIES & EQUIPMENT
CHRY - Power Mirrors
Caravan, Dakota, Durango, Ram Pickup, Ram Van, Ram Wagon,
Town & Country, & Voyager
DESCRIPTION
Outside power rear view mirrors consist of door-mounted
mirrors with internal motor drive and backing plate. On Caravan, Town
& Country, and Voyager, mirrors are controlled by a rocker switch for
left or right mirror selection and a platform button for up, down,
right and left movement. On Dakota, Durango, Ram Pickup, Ram Van and
Ram Wagon, mirrors are controlled by a single, multifunction,
joystick-type switch assembly. On all models, mirror motors are
integral with mirror assemblies and cannot be serviced separately. On
Dakota and Durango, fold-away rear view mirrors are optional.
Dakota, Durango and Ram Pickup are equipped with an automatic
dimming day/night inside mirror. The mirror uses 2 photocell sensors
to monitor ambient and rear facing light levels. The mirror
automatically adjusts its reflectance to reduce headlight glare from
vehicles approaching from the rear. The mirror is controlled by an
off/on switch located on the mirror bottom.
Caravan, Ram Pickup, Town & Country and Voyager have optional
heated outside mirrors. On Caravan, Town & Country and Voyager, heated
mirror is activated whenever the rear defogger is on. On Ram Pickup,
heated mirror is activated by switch in dash. A timer turns off mirror
heater after about 10 minutes.
COMPONENT TESTS
AUTOMATIC DAY/NIGHT INSIDE MIRROR
1) Turn ignition switch to ON position with transmission in
Neutral or Park. Place mirror switch in ON position (switch LED
illuminated). Cover forward facing sensor with a dark cloth or tape to
exclude any ambient light. See Fig. 1.
2) Shine a light into rear-facing sensor. Observe whether or
not mirror darkens. With mirror darkened, place transmission in
Reverse. Mirror should return to normal. If conditions of steps 1) and
2) are met, mirror is operating correctly. If conditions are not met,
go to next step.
3) Turn ignition on. Check for battery voltage at fuse No. 11
in junction block. If battery voltage exists on both sides of fuse, go
to next step. If battery voltage does not exist, repair circuit to
junction block. See WIRING DIAGRAMS. If fuse is blown, repair short
circuit and replace fuse.
4) Check for battery voltage at day/night mirror wire
connector terminal No. 1 (Dark Blue/White wire). If battery voltage
exists, go to next step. If battery voltage does not exist, repair
open circuit between mirror and junction block.
5) Check for continuity between ground and day/night mirror
wire connector terminal No. 2 (Black wire). If continuity exists, go
to next step. If continuity does not exist, repair open ground
circuit.
6) Check for battery voltage at day/night mirror wire
connector terminal No. 3 (Violet/Black wire) with transmission in
Reverse. If battery voltage exists, replace mirror. If battery voltage
does not exist, check back-up light circuit. See WIRING DIAGRAMS.