DODGE RAM 1999 Service Repair Manual
Page 901 of 1691
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\
\
\
\
\
\
\
TO CONVERT TO MULTIPLY BY
\b
\
\
\
\
\
\
\
LENGTH
Millimeters (mm) Inches .03937
Inches Millimeters 25.4
Meters (M) Feet 3.28084
Feet Meters .3048
Kilometers(Km) Miles .62137
\b
\
\
\
\
\
\
\
AREA
Square Centimeters (cm ) Square Inches .155
Square Inches Square Centimeters 6.45159
\b
\
\
\
\
\
\
\
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
\b
\
\
\
\
\
\
\
WEIGHT
Grams Ounces .03527
Ounces Grams 28.34953
Kilograms Pounds 2.20462
Pounds Kilograms .45359
\b
\
\
\
\
\
\
\
WORK
Centimeter Kilograms Inch Pounds .8676
Pounds/Sq. Inch Kilograms/Sq.Centimeter .07031
Bar Pounds/Sq. Inch 14.504
Page 902 of 1691
Pounds/Sq. Inch Bar .06895
Atmosphere Pounds/Sq. Inch 14.696
Pounds/Sq. Inch Atmosphere .06805
\b
\
\
\
\
\
\
\
TEMPERATURE
Centigrade Degrees Fahrenheit Degrees ( Cx(9)/5)+32
Fahrenheit Degrees Centigrade Degrees ( F-32)x(5)/9
\f
\
\
\
\
\
\
\
CONVERSION FACTORS (Cont.)\
\
\
\
\
\
\
INCHES DECIMALS mm
\b
\
\
\
\
\
\
\
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
Page 903 of 1691
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
\f
\
\
\
\
\
\
\
Page 904 of 1691
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.
Page 905 of 1691
Fig. 1: Identifying Automatic Day/Night Mirror
Courtesy of Chrysler Corp.
POWER MIRROR MOTOR
Caravan, Town & Country, & Voyager
Disconnect harness connector from mirror and headlight
switch. Using 2 jumper wires, connect one jumper to a 12-volt source
and the other jumper wire to a good ground. Connect other end of
jumper wires to specified switch terminals as specified. See POWER
MIRROR MOTOR TEST (CARAVAN, TOWN & COUNTRY, & VOYAGER) table. If
Page 906 of 1691
mirror operation is not as specified, check for open or short circuit
between switch and power mirror. Repair as necessary. If wiring
harness is okay, replace mirror assembly as necessary. See Fig. 2.
POWER MIRROR MOTOR TEST (CARAVAN, TOWN & COUNTRY, & VOYAGER)
\
\
\
\
\
\
\
Apply 12 Volts Ground Mirror Operation Mirror Operation
To Pin Pin (Right) (Left\
)
Switch Connector ( 1)
12 ............. 6 ............. N/A ...................... Up
7 .............. 6 ............. N/A .................... Left
6 .............. 12 ............ N/A .................... Down
6 .............. 7 ............. N/A ................... Right
13 ............. 1 ............. Up ...................... N/A
8 .............. 1 ............ Left ..................... N/A
1 .............. 13 ........... Down ..................... N/A
1 .............. 8 ............ Right .................... N/A
5 .............. 11 ............ ( 2) ..................... ( 2)
( 1) - Use illustration for connector pin identification. See Fig. 2.
( 2) - Used for switch illumination. No mirror movement will be
observed.
\
\
\
\
\
\
\
Fig. 2: Identifying Power Mirror Switch Connector Pins (Caravan,
Town & Country, & Voyager)
Courtesy of Chrysler Corp.
Dakota, Durango, Ram Pickup, Ram Van & Ram Wagon
Page 907 of 1691
Disconnect harness connector from mirror and headlight
switch. Using 2 jumper wires, connect one jumper to a 12-volt source
and the other to a good ground. If tests do not agree with POWER
MIRROR MOTOR TEST (DAKOTA, DURANGO, RAM PICKUP, RAM VAN & RAM WAGON)
table, check for open or shorted circuit, or replace mirror assembly
as necessary. See Fig. 3.
POWER MIRROR MOTOR TEST (DAKOTA, DURANGO, RAM PICKUP, RAM VAN &
RAM WAGON)
\
\
\
\
\
\
\
Apply 12 Volts Ground Mirror
To Pin Pin Operation
Switch Connector ( 1)
3 ................................. 1 ....................... Up
2 ................................. 1 ..................... Left
1 ................................. 3 ..................... Down
1 ................................. 2 .................... Right
( 1) - See Fig. 3 for connector pin identification.
\
\
\
\
\
\
\
Fig. 3: Identifying Power Mirror Connector Pins (Dakota, Durango,
Ram Pickup, Ram Van & Ram Wagon)
Courtesy of Chrysler Corp.
POWER MIRROR SWITCH
Page 908 of 1691
Caravan, Town & Country, & Voyager
Remove switch and disconnect wiring connector. See POWER
MIRROR SWITCH under REMOVAL & INSTALLATION. Using an ohmmeter, check
continuity between power mirror switch terminals with switch in
appropriate position. See POWER MIRROR SWITCH CONTINUITY TEST
(CARAVAN, TOWN & COUNTRY, & VOYAGER) table. See Fig. 2. If results
differ from table, replace switch.
POWER MIRROR SWITCH CONTINUITY TEST (CARAVAN, TOWN & COUNTRY, &
VOYAGER)
\
\
\
\
\
\
\
Mirror Selector Mirror Angle Continuity Between Pins
Position
\
\b \
\
\b \
\
\
\
"L" (Left) Up 9 & 12; 6 & 11; 9 & 13
\
\
\b \
\
\
Down 9 & 6; 12 & 11; 13 & 11
\
\
\b \
\
\
Left 9 & 7; 6 & 11; 9 & 8
\
\
\b \
\
\
Right 9 & 6; 7 & 11; 8 & 11
\
\b \
\
\b \
\
\
\
"R" (Right) Up 9 & 13; 1 & 11; 9 & 12
\
\
\b \
\
\
Down 9 & 1; 13 & 11; 12 & 11
\
\
\b \
\
\
Left 9 & 8; 1 & 11; 9 & 7
\
\
\b \
\
\
Right 9 & 1; 8 & 11; 7 & 11
\
\b \
\
\b \
\
\
\
Illumination N/A 5 & 11
\
\
\
\
\
\
\
\f
Dakota, Durango, Ram Pickup, Ram Van & Ram Wagon
Remove switch and disconnect wiring connector. See POWER
MIRROR SWITCH under REMOVAL & INSTALLATION. Using an ohmmeter, check
continuity between power mirror switch terminals with switch in
appropriate position. See POWER MIRROR SWITCH CONTINUITY TEST (DAKOTA,
DURANGO, RAM PICKUP, RAM VAN & RAM WAGON) table. See Fig. 4. If
results differ from table, replace switch.
POWER MIRROR SWITCH CONTINUITY TEST (DAKOTA, DURANGO, RAM PICKUP,
RAM VAN & RAM WAGON)
\
\
\
\
\
\
\
Mirror Selector Mirror Angle Continuity Between Pins
Position
\
\b \
\
\b \
\
\
\
"L" (Left) Up 1 & 7; 3 & 8; 4 & 7
\
\
\b \
\
\
Down 1 & 8; 3 & 7; 4 & 8
\
\
\b \
\
\
Left 2 & 7; 3 & 8; 5 & 7
\
\
\b \
\
\
Right 2 & 8; 3 & 7; 5 & 8
\
\b \
\
\b \
\
\
\
"R" (Right) Up 1 & 7; 4 & 7; 6 & 8
\
\
\b \
\
\
Down 1 & 8; 4 & 8; 6 & 7
\
\
\b \
\
\
Left 2 & 7; 5 & 7; 6 & 8
\
\
\b \
\
\
Page 909 of 1691
Right 2 & 8; 5 & 8; 6 & 7
\
\
\
\
\
\
\
\f
Fig. 4: Identifying Power Mirror Motor Switch Connector Pins
(Dakota, Durango, Ram Pickup, Ram Van & Ram Wagon)
Courtesy of Chrysler Corp.
POWER MIRROR DEFOGGER
NOTE: On Caravan, Town & Country and Voyager, heated mirror is
controlled by rear window defogger switch. Heated mirror is
on whenever rear window defogger is on.
Caravan, Town & Country, & Voyager
1) Mirror should be warm to touch with rear window defogger
activated. If mirror is not warm to touch, check fuse No. 12 (10-amp)
in junction block. Repair short circuit and replace fuse as necessary.
Check for battery voltage at mirror harness connector Light
Blue/Yellow wire with rear window defogger switch on. If battery
voltage does not exist, repair wiring as necessary. See WIRING
DIAGRAMS. If battery voltage exists, go to next step.
Page 910 of 1691
2) Apply voltage to Light Blue/Yellow wire at heated mirror
and ground Black wire at heated mirror. Mirror should become warm to
touch. If mirror is not warm to touch, remove mirror and test wires
for continuity. If no continuity exists, repair wires. If wires are
okay, replace mirror. To test defogger switch, see appropriate wiring
diagram in REAR WINDOW DEFOGGERS article.
NOTE: On Ram Pickup, heated mirror is controlled by mirror defogger
switch.
Ram Pickup
1) Turn ignition on. While watching instrument panel
voltmeter, turn heated mirror switch on. Voltmeter needle should
deflect. With heated mirror on, mirror should be warm to touch after
3-4 minutes. If system operates as described, system is okay at this
time.
2) If system does not operate as described, go to next step.
Illuminated indicator light means only that voltage exists at heated
mirror relay.
3) Ensure ignition is on. Check fuses in Power Distribution
Center (PDC) and junction block. Ensure fuses are fully seated and
connections are secure. If mirrors are still inoperative, problem is
in heated mirror control, mirror heating grid and/or heated mirror
harness or connectors. If turning switch on causes a large deflection
in instrument panel voltmeter, check for a short circuit in system.
Repair as necessary.
REMOVAL & INSTALLATION
CAUTION: When battery is disconnected, vehicle computer and memory
systems may lose memory data. Driveability problems may exist
until computer systems have completed a relearn cycle. See
COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION
before disconnecting battery.
HEATED MIRROR SWITCH
Removal & Installation (Ram Pickup)
Heated mirror switch is part of HVAC control unit. See
appropriate AUTOMATIC A/C-HEATER SYSTEMS article in appropriate AIR
CONDITIONING & HEATING SERVICE & REPAIR section.
POWER MIRROR SWITCH
Removal & Installation (Caravan, Town & Country, & Voyager)
1) Remove cover from over steering column. Remove screws
holding instrument cluster bezel to dash (above cluster lens). Remove
screws holding instrument cluster bezel to dash from each side of
steering column. Disconnect clip holding instrument cluster bezel to
dash from above right vent louver.
2) Separate instrument cluster bezel from dash. Disconnect
wires from back of bezel. Disengage lock tabs above and below mirror
switch. Pull mirror switch from headlight switch bezel. To install,
reverse removal procedure.
Removal & Installation (Dakota & Durango)
1) Pull power mirror switch control knob rearward to remove
it from switch body. Remove nut securing switch to door trim panel.
Pull door latch handle to open position and remove screw securing trim
panel to door. Remove manual window crank handle, if equipped. Release
locking tab on power window/lock switch, if equipped. Remove power
window/lock switch and unplug connector.