Question about 1991 Mercury Grand Marquis

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Turning signals dont work but the wipers for the front windshield work the highbeams come on

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  • Anonymous Feb 28, 2009

    99 mercury sable same problems changed the fuses changed the flaser and the relay switches ..nothing

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  • Master
  • 659 Answers

Try turning the 4 ways on and off several times and try moving the turn signal switch up and down several times quickly

Posted on Nov 25, 2008

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Wipers dont work


This is a complex wiper system . Here are all the components involved !
The Wiper/Washer System consists of the following components:
?€¢
Windshield wiper/washer switch


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Body control module (BCM)


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Wiper 1 relay


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Wiper 2 relay


?€¢
Wiper diode


?€¢
Windshield wiper motor


?€¢
Windshield washer pump


?€¢
Windshield washer nozzles


?€¢
Windshield washer solvent container


?€¢
Windshield wiper arm and blade assemblies


?€¢
Windshield wiper transmission


?€¢
WIPER/SW 10A fuse


?€¢
WIPER 25A fuse


Circuit/System Description
The body control module (BCM) controls the wiper motor based on input from the windshield wiper washer switch. The BCM monitors the wiper washer switch through three separate signal circuits and a ground circuit. The windshield wiper switch high signal circuit is used to determine high speed wiper operation, the windshield wiper switch low signal is used to determine low speed, intermittent, and mist operation through the use of a resistor ladder, and windshield washer switch signal circuit is used to determine washer operation. The windshield wiper motor park operation is controlled by the BCM. The BCM recieves an input from the park switch to determine wiper blade position. When the wiper blades are at the bottom of the windshield glass in park position the wiper park switch will open and the circuit will be pulled up to B+ by the BCM. The park signal will be pulled to ground by the wiper motor park switch while the wiper blades are not in the park position.
The BCM controls the windshield wiper motor through two output controls, controlling two relays which determine the desired wiper speed, high or low
Diagnostic Trouble Codes (DTCs)
The body control module (BCM) monitors the voltage on the windshield wiper switch signal 2 circuit for diagnostic purposes. If the circuit is shorted to voltage while the driver is commanded OFF, the BCM will store DTC B3715. If the circuit is shorted to ground while the driver is commanded ON, the BCM will store DTC B3715. Refer to DTC B3715.
It would be best to have a factory scan tool to diagnose this problem . it would make it easier anyway .
It

Dec 05, 2015 | Cars & Trucks

2 Answers

1988 jeep cherokee,6 cylinder my front windsheild wipers dont work.fuse is good.the wiper motor makes a noise when its turned on.is there a relay that could be faulty?wiper switch is the same as the turn...


No relay in the circuit.
There is a delay module but if it fails that usually causes the wipers to stop in the middle of travel or only run on high.
And the switch is working if you hear noise coming from the motor. The wiper switch is not the same switch as the turn signals but it is near that assembly.
I would say if you have power to the wiper motor the motor is probably dead or something happened to the linkage to the arms.

Feb 27, 2013 | 1988 Jeep Cherokee

1 Answer

Wipers & lightwon't shut off and other things won't turn on


i have had this exact problem. It's a switch in the steering column. It'll be about $400 to fix

Oct 26, 2009 | 2008 Jeep Liberty

1 Answer

My windshield wipers dont wrk


most common cause is the turn signal switch.

Jun 17, 2009 | 2004 Lincoln Aviator

1 Answer

Need to get a programmer dont know where its at


  • Windshield Wipers Continue to Run When Turn Signal and Windshield Wiper Switch Are Turned OFF
  • Damaged turn signal and windshield wiper switch .
  • Damaged windshield wiper motor .
  • Damaged windshield wiper control module.
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Pin Number Circuit Circuit Function 1 57 (BK) Wiper Motor Ground (Park) 2 28 (BK/PK) Wiper Module to Wiper Motor (Park Switch) 3 65 (DG) Wiper Motor Power (Park Feed) 4 61 (Y/R) Wiper Motor Common (RUN) 5 56 (DB/O) Wiper Motor LO 6 58 (W) Wiper Motor HI
Windshield Wiper System The windshield wiper system consists of :
  • Windshield wiper motor (17508) (F-type).
  • Washer system.
  • Windshield wiper control module.
  • Turn signal and windshield wiper switch (13K359).
The windshield wiper control module is:
  • Located at the instrument panel fuse panel.
The windshield wiper motor is:
  • Attached to the cowl top extension (021A36) .
  • Connected to windshield wiper mounting arm and pivot shaft (17566) .
The turn signal and windshield wiper switch features a:
  • Rotary wiper switch.
  • Push type washer actuator.
OFF/Low/High Speed
  • Has a two-speed, permanent magnet, three brush electric windshield wiper motor .
  • The windshield wiper motor has a brush rigging that permits selection of low or high speed.
  • When the turn signal and windshield wiper switch is in the LO position, the common brush and the blue/orange wire brush are used, and the windshield wiper motor operates at low speed.
  • When the turn signal and windshield wiper switch is in the HI position, the common brush and the white wire brush are used.
  • In HI position, electric current will bypass a portion of the armature winding causing the windshield wiper motor to operate faster.
  • When the turn signal and windshield wiper switch is moved to the OFF position, the windshield wiper motor will continue at low speed until the park switch outer contacts open.
  • When the park switch contacts open, the windshield wiper motor stops in the park position.
Interval
When the turn signal and windshield wiper switch is in the interval position:
  • The wipers make single wipes separated by pauses.
  • The rotary switch is on the end of turn signal and windshield wiper switch .
  • The length of the pause can be set from approximately 1 to 17 seconds.
  • Length of pause decreases as the rotary switch is rotated away from off.
  • Length of pause increases as the rotary switch is rotated toward off.
While in the interval wiper mode:
  • It is normal to hear a slight click at the beginning of each on/pause cycle. NOTE: When using interval wipers, the first wipe may not occur until after a pause of up to 17 seconds.

May 27, 2009 | 1994 Ford Mustang

1 Answer

98 Explorer's Headlights won't work...have to hold highbeam on


Sounds like your switch is bad (i.e. turn signal / healight dimmer / winshield lever switch) inside the steering column. Replace as necessary.

Apr 07, 2009 | 1995 Ford Mustang

2 Answers

Signal and windshield wiper aren't working


switch in steerig console combo wiper turn?

Mar 01, 2009 | 1999 Volkswagen New Jetta

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