Dodge 2000 DURANGO Service Manual page 387

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DESCRIPTION AND OPERATION (Continued)
WIPER MOTOR
FRONT
The two-speed permanent magnet wiper motor has
an integral transmission and park switch. The motor
also contains an internal automatic resetting circuit
breaker to protect the motor from overloads.
The motor is secured near the center of the tubular
wiper linkage and pivot module bracket with three
screws. The wiper motor output shaft passes through
a hole in the module bracket, where a nut secures
the wiper motor crank arm to the motor output shaft.
Wiper speed is controlled by current flow to the
proper set of brushes. The wiper motor completes its
wipe cycle when the windshield wiper switch on the
end of the multi-function switch stalk is turned to
the Off position, and parks the blades in the lowest
portion of the wipe pattern.
The windshield wiper linkage, pivots, bushings,
mounting bracket, and motor are only serviced as a
complete unit. If any part of this unit is faulty or
damaged, the entire wiper module must be replaced.
REAR
The rear wiper motor is secured to a bracket that
is fastened to the liftgate inner panel with two
screws through two rubber grommet-type insulators,
below the rear window glass and behind the liftgate
trim panel. The motor output shaft passes through
the liftgate outer panel where a rubber grommet and
a nut seal and secure the unit to the liftgate outer
panel. A plastic cover snaps onto the motor output
shaft to conceal the mounting nut. The rear wiper
arm is secured directly to the motor output shaft
with another nut, which is also concealed by a plastic
cover that snaps onto the end of the wiper arm.
The rear wiper motor unit provides a single speed
intermittent-cycle operating mode, which is provided
by an electronic timer circuit that is integral to the
motor unit. The rear wiper motor cannot be repaired.
If faulty or damaged, the entire rear wiper motor
assembly must be replaced.
WIPER SWITCH AND WASHER SWITCH
FRONT
The windshield wiper and washer switches are
contained in the multi-function switch assembly (Fig.
1). The multi-function switch assembly is secured to
the left side of the steering column. A knob on the
end of the multi-function switch stalk is rotated to
select the desired wiper speed or intermittent wipe
delay, or depressed toward the steering column to
activate the washer system.
The multi-function switch contains circuitry for the
following functions:
WIPER AND WASHER SYSTEMS
• Turn signals
• Hazard warning
• Headlamp beam selection
• Headlamp optical horn
• Windshield wipers
• Windshield washers.
The information contained in this group addresses
only the switch functions for the windshield wiper
and washer systems. For information relative to the
other switch functions, refer to the proper group.
However, the multi-function
repaired. If any function of the multi-function switch
is faulty, or if the switch is damaged, the entire
switch assembly must be replaced.
Fig. 1 Multi-Function Switch
1 – WINDSHIELD WASHER BUTTON
2 – CONTROL STALK
3 – HAZARD WARNING BUTTON
4 – WINDSHIELD WIPER CONTROL
5 – MULTI-FUNCTION SWITCH
REAR
The single two-function rear wiper and washer
switch is integral to the rear window switch pod,
which includes the rear window defogger switch. The
rear window switch pod is installed in the instru-
ment panel lower bezel, which is located near the
center of the lower instrument panel, below the
heater and air conditioner controls. The rear wiper
and washer switch controls the rear wiper and
washer functions.
The rear window switch pod also contains the rear
window defogger logic and timer circuitry, an amber
defogger indicator lamp, the rear window defogger
relay, and two switch illumination lamps. The indica-
tor and illumination lamps in the switch pod use
incandescent bulbs, which can be serviced.
The sliding-type switch features a detent in the On
position for the rear wiper. Pushing in on the rear
wiper switch button activates the momentary rear
washer switch. The rear wiper and washer switch
8K - 3
switch cannot be