Fig. 3: Determining Camber Angle
CASTER
1) Caster is tilting of front steering axis either forward or
backward from vertical, as viewed from side of vehicle. See Fig. 4.
2) When axis is tilted backward from vertical, caster is
positive. This creates a trailing action on front wheels. When axis is
tilted forward, caster is negative, causing a leading action on front
wheels.
Fig. 4: Determining Caster Angle
TOE-IN ADJUSTMENT
Toe-in is the width measured at the rear of the tires
subtracted by the width measured at the front of the tires at about
spindle height. A positive figure would indicate toe-in and a negative
figure would indicate toe-out. If the distance between the front and
rear of the tires is the same, toe measurement would be zero. To
adjust:
1) Measure toe-in with front wheels in straight ahead
position and steering wheel centered. To adjust toe-in, loosen clamps
and turn adjusting sleeve or adjustable end on right and left tie
rods. See Figs. 2 and 5.
2) Turn equally and in opposite directions to maintain
steering wheel in centered position. Face of tie rod end must be
parallel with machined surface of steering rod end to prevent binding.
3) When tightening clamps, make certain that clamp bolts are
positioned so there will be no interference with other parts
throughout the entire travel of linkage.
Fig. 5: Wheel Toe-In (Dimension A Less Dimension B)
TOE-OUT ON TURNS
1) Toe-out on turns (turning radius) is a check for bent or
damaged parts, and not a service adjustment. With caster, camber, and
toe-in properly adjusted, check toe-out with weight of vehicle on
wheels.
2) Use a full floating turntable under each wheel, repeating
test with each wheel positioned for right and left turns. Incorrect
toe-out generally indicates a bent steering arm. Replace arm, if
necessary, and recheck wheel alignment.
STEERING AXIS INCLINATION
1) Steering axis inclination is a check for bent or damaged
parts, and not a service adjustment. Vehicle must be level and camber
should be properly adjusted. See Fig. 6.
2) If camber cannot be brought within limits and steering
axis inclination is correct, steering knuckle is bent. If camber and
steering axis inclination are both incorrect by approximately the same
amount, the upper and lower control arms are bent.
Fig. 6: Checking Steering Axis Inclination
WIN DO W S - P O W ER
1999 D odge P ic ku p R 1500
1999 ACCESSORIES & EQUIPMENT
CHRY - Power Windows
Caravan, Dakota, Durango, Ram Pickup, Ram Van, Ram Wagon,
Town & Country, & Voyager
DESCRIPTION & OPERATION
A permanent magnet motor moves each of the power windows,
including power vent windows. A positive and negative battery
connection to either of the 2 motor terminals will cause the motor to
rotate in one direction. Reversing current through these same 2
connections will cause the motor to rotate in the opposite direction.
Each individual motor is grounded through the master switch by a wire
attached to the instrument panel reinforcement.
Caravan, Durango, Town & Country and Voyager are equipped
with an Auto Down feature. Drivers window can be lowered without
having to hold the switch in the down position. Auto Down feature can
be activated by pressing down switch past first detent. Caravan, Town
& Country and Voyager have optional power vent windows. Power rear
vent windows are operated by switches mounted in driver's door panel.
NOTE: Power window circuits on Caravan, Town & Country, and Voyager
use Positive Temperature Coefficient (PTC) devices. The PTC
is a specified amperage solid-state resettable fuse. PTCs are
located in junction box behind driver's side of instrument
panel, to left of steering column. To reset PTC, all current
must be removed from PTC for approximately 20 seconds.
ADJUSTMENTS
WINDOWS
Remove door trim panel. See DOOR TRIM PANEL under REMOVAL &
INSTALLATION. Loosen bolts holding window to regulator. Raise window
fully, seating window in frame. Tighten bolts. Install door trim
panel.
TROUBLE SHOOTING
CARAVAN, TOWN & COUNTRY, & VOYAGER
Inspect both No. 8 and 9 (9-amp) PTCs in junction block.
Junction block is located under left side of instrument panel.
* Inspect fuse No. 23 (40-amp) in Power Distribution Center
(PDC). PDC is located on left side of engine compartment.
* Inspect ground at instrument panel left side cowl.
DAKOTA & DURANGO
Inspect circuit breaker No. 20 (20-amp on Dakota, 25-amp on
Durango) in fuse block. Fuse block is located on left end of
instrument panel.
* Inspect fuse No. 9 (40-amp) in Power Distribution Center
(PDC). PDC is located in left front corner of engine
MOTOR WILL NOT RUN
Check for blown fuse. Check voltage at motor. Check wiper
switch, ground circuit and wiring.
MOTOR RUNS, BLADES DO NOT MOVE
Check for loose motor crank, disconnected linkage or loose
arms on pivot shaft. Check for faulty wiper motor.
BLADES DO NOT PARK PROPERLY
Check for improperly installed wiper arms. Check for faulty
linkage. Check for faulty wiring, wiper switch or wiper motor.
WIPER KNOCK NOISE
Check for improperly installed wiper arms. Check for faulty
linkage or wiper motor.
BLADES CHATTER
Check for foreign substance on blades or glass. Check for
twisted arm holding blade at wrong angle to glass. Check for bent or
damaged blades.
WASHERS DO NOT OPERATE
Check for low washer fluid level. Check for contaminated
washer fluid. Check for leaking or improperly routed hoses. Check for
faulty wiring, wiper switch or washer pump.
COMPONENT TESTS
INTERMITTENT WIPER RELAY
1) Remove relay. See INTERMITTENT WIPER RELAY under REMOVAL &
INSTALLATION. Check continuity between relay terminals No. 30 and 87A.
Continuity should exist. Check continuity between relay terminals No.
30 and 87. Continuity should not exist. Check resistance between relay
terminals No. 85 and 86. Resistance should be 70-80 ohms.
2) Connect battery voltage between relay terminals No. 85 and
86. Check continuity between relay terminals No. 30 and 87A.
Continuity should not exist. Check continuity between relay terminals
No. 30 and 87. Continuity should exist. Replace relay if continuity or
resistance is not as specified.
WIPER/WASHER SWITCH
NOTE: Wiper/washer switch is part of multifunction steering column
switch. If wiper/washer switch fails, entire multifunction
switch must be replaced.
Disconnect wiper/washer switch connector. Check continuity
between appropriate switch terminals with switch in specified
position. See WIPER/WASHER CONTINUITY TEST table. See Fig. 2. Replace
multifunction switch if continuity is not as specified.
WIPER/WASHER CONTINUITY TEST
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Switch Position Between Terminals
Off .......................................................... 6 & 7
Delay (1) ............................... 8 & 9; 2 & 4; 1 & 2; 1 & 4
Low .......................................................... 4 & 6
High ......................................................... 4 & 5
Wash ......................................................... 3 & 4
( 1) - At maximum delay position, resistance should be 270-330 k/ohms
between all terminal pairs listed. At minimum delay position,
resistance should be zero when ohmmeter is set on high ohm scale
between all terminal pairs listed.
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Fig. 2: Identifying Wiper/Washer Switch Terminals
Courtesy of Chrysler Corp.
SYSTEM TESTS
WARNING: All vehicles are equipped with air bag restraint systems. See
appropriate AIR BAG RESTRAINT SYSTEMS article before
servicing steering wheel or column. Use extreme caution to
avoid personal injury and vehicle damage.
NOTE: If problem occurs in electronic components, wiring, wiper
switch or wiper motor, a Diagnostic Trouble Code (DTC) will
be stored in BCM. For testing procedures, see appropriate
BODY CONTROL COMPUTER TESTS article.
WASHER
NOTE: Following testing applies when pump does not operate. If pump
operates, see TROUBLE SHOOTING.
1) Turn ignition on. Turn wiper switch on. If wipers operate,
go to next step. If wipers do not operate, diagnose wiper problem
first. See WIPER.