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  #1  
Old 06-13-2013, 01:56 AM
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deanhinsley1963 deanhinsley1963 is offline
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Question low wash light staying on

new to the forum so Hi everyone!!! like the post says the low wash light on the dash stays lit even though its full and functions great. Does it have a sensor in the tank? and if so how hard is it to change? When looking for parts what do I call it?
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Old 06-14-2013, 01:55 AM
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how about a bump on this guys.
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Old 06-17-2013, 08:06 PM
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bump,bump Is there anyone on this forum?
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Old 06-25-2013, 10:49 PM
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bump bump no one had this problem before?
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Old 07-10-2013, 12:30 AM
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bump,bump anyone on here?
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Old 07-11-2013, 08:36 AM
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Here you go, strait from the factor manual. hope this helps....I would not imagine its not too hard to see, it'll be on the bottom of your fluid tank

WASHER FLUID INDICATOR
DESCRIPTION
A washer fluid indicator is standard equipment on
all instrument clusters. The washer fluid indicator
consists of the words “LOW WASH”, which appear in
the lower portion of the odometer/trip odometer Vacuum-
Fluorescent Display (VFD) unit (Fig. 36). The
VFD is soldered onto the cluster electronic circuit
board and is visible through a window with a smoked
clear lens located on the lower edge of the tachometer
gauge dial face of the cluster overlay. The dark
lens over the VFD prevents the indicator from being
clearly visible when it is not illuminated. The “LOW
WASH” text appears in an amber color and at the
same lighting level as the odometer/trip odometer
information when it is illuminated by the instrument
cluster electronic circuit board. The washer fluid
indicator is serviced as a unit with the VFD in the
instrument cluster.
OPERATION
The washer fluid indicator gives an indication to
the vehicle operator that the fluid level in the washer
Fig. 35 Wait-To-Start Indicator
Fig. 36 Washer Fluid Indicator


8J - 44 INSTRUMENT CLUSTER
DR

reservoir is low. This indicator is controlled by the
instrument cluster circuit board based upon cluster
programming and electronic messages received by
the cluster from the Front Control Module (FCM)
over the Programmable Communications Interface
(PCI) data bus. The washer fluid indicator is completely
controlled by the instrument cluster logic circuit,
and that logic will only allow this indicator to
operate when the instrument cluster receives a battery
current input on the fused ignition switch output
(run-start) circuit. Therefore, the indicator will
always be off when the ignition switch is in any position
except On or Start. The indicator only illuminates
when it is switched to ground by the
instrument cluster circuitry. The instrument cluster
will turn on the washer fluid indicator for the following
reasons:


Washer Fluid Indicator Lamp-On Message -
Each time the cluster receives a washer fluid indicator
lamp-on message from the FCM indicating that a
low washer condition has been detected for sixty consecutive
seconds, the washer fluid indicator is illuminated
and a single chime tone is sounded. The
indicator remains illuminated until the cluster
receives a washer fluid indicator lamp-off message
for sixty consecutive seconds from the FCM or until
the ignition switch is turned to the Off position,
whichever occurs first. The chime tone feature will
only repeat during the same ignition cycle if the
washer fluid indicator is cycled off and then on again
by the appropriate washer fluid lamp messages from
the FCM.


Actuator Test - Each time the cluster is put
through the actuator test, the washer fluid indicator
will be turned on, then off again during the VFD portion
of the test to confirm the functionality of the
VFD and the cluster control circuitry.
The FCM continually monitors the washer fluid
level switch in the washer reservoir to determine the
level of the washer fluid. The FCM then sends the
proper washer fluid indicator lamp-on and lamp-off
messages to the instrument cluster. For further diagnosis
of the washer fluid indicator or the instrument
cluster circuitry that controls the indicator, (Refer to
8 - ELECTRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). For proper diagnosis of the
washer fluid level switch, the FCM, the PCI data
bus, or the electronic message inputs to the instrument
cluster that control the washer fluid indicator,
a DRBIII

t scan tool is required. Refer to the appropriate
diagnostic information.

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Last edited by tjbiker031; 07-11-2013 at 08:42 AM.
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  #7  
Old 07-16-2013, 01:14 AM
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Thanks for the reply. I thought it might be simple but I guess not. Thanks again
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Old 07-16-2013, 01:20 AM
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I'm thinking it is pretty simple. Just a sensor at the bottom of the reservoir. Check to make sure it's plugged in, if it is, the pull it out and use a bare wire to ground the two connection sockets. If the light goes out, then you know you have a bad sensor.
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  #9  
Old 07-16-2013, 01:25 AM
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Great!!! Thanks thats just what I was hoping to!
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Old 08-29-2013, 04:05 PM
Platnumbob Platnumbob is offline
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I have been told the sensor is on some type of float - give the washer tank a really good tap/ hit to see if its stuck.

Otherwise you might be able to just unplug the sensor on the tank and the warning should disappear forever....
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