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HEADLAMP WASHERS -
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DESCRIPTION
The headlamp washers (Fig. 3) work in conjunction
with the windshield washers. The headlamp washers
are enabled with the headlamps ON and the wind-
shield washers activated. With the windshield wash-
ers activated, the headlamp washers will spray twice
for a predetermined amount of time.
Fig. 3 HEADLAMP WASHER LOCATION
OPERATION
The headlamp washer system utilizes a separate
high pressure pump that is attached to the wind-
shield washer reservoir. The headlamp washer pump
feeds nozzles that are mounted in the front fascia of
the vehicle. The nozzle bodies have a telescopic
action that will extend the nozzles in front of the
headlamp assembly. These nozzles spray the head-
lamps when the system is activated.
To activate the headlamp washers, turn ON the
headlamps and them press the windshield washer
control knob (Fig. 4). The switch sends an input to
the Body Control Module (BCM), and then the BCM
will signal the windshield washers to operate and
direct two timed high pressure sprays onto the head-
lamp lens. When the criteria is met to activate the
headlamp washers (headlamps ON and windshield
washer control depressed), the headlamp washers
will spray its two timed pulses every fourth request
from the washer control.
Fig. 4 WINDSHIELD WASHER CONTROL
DIAGNOSIS AND TESTING - HEADLAMP
WASHERS - EXPORT
The headlamp washer pump pick-up is located
above the low washer fluid level sensor. First of all
check the fluid level in the reservoir.
(1) Check fuse #30 for continuity. If no continuity,
go to Step 3.
(2) If the headlamp washers do not pop up when a
headlamp wash is requested, disconnect the head-
lamp washer hose. To disconnect the headlamp
washer hose, push down on the latch at any connec-
tor with slight force and pull apart. When reattach-
ing, push till you hear a snap. With a regulated 20
psi of air pressure, apply it to the washer hose. The
headlamp washers should pop up out of the front fas-
cia. If not, check for leaks/connections in the hose.
WARNING: IF MORE THAN 20 PSI IS APPLIED TO
THE WASHER HOSE, WASHER FLUID MAY SPRAY
OUT OF THE HEADLAMP WASHER. WEAR SAFETY
GLASSES AND DO NOT HAVE AIMING DIRECTLY
TOWARD FACE.
(3) If the hose and washer spray assembly are OK,
check the washer pump for ground and 12v power
during a washer request. If defective, repair circuit
as necessary.
WIPERS/WASHERS
8R - 11
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