Cause of malfunction
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Elimination Method
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Wiper motor not working
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Damaged wires, oxidized or loose ends, blown fuse No. 2 (No. 1, if the tailgate glass cleaner does not work)
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Crimp terminals, replace faulty wires, fuse. Eliminate the cause of its burnout
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Brushes stuck to glass
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Turning the ignition key to position «turned off», carefully separate the brushes from the glass, check the integrity of the rubber scraper, restore the mobility of the brush connections
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A foreign object has fallen between the moving parts of the crank
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Check the correct installation of the levers, straighten the deformed levers or replace the wiper
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Wiper stalk switch defective
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Replace faulty switch
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The brushes of the electric motor are stuck, the collector is very dirty or burnt
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Eliminate the sticking of the brushes, clean the collector with glass paper, wipe it with a cloth soaked in gasoline. In case of severe wear, replace the gearmotor
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Open or short circuit in the motor armature winding
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Replace gearmotor
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Wiper motor
does not work intermittently
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Faulty wiper relay
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Replace relay
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Steering column switch faulty
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Replace faulty switch
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Wiper motor does not stop intermittently
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Faulty wiper relay
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Replace relay
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The contact plate of the limit switch of the gearmotor does not bend when passing the cam
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Disassemble the gearmotor and bend the contact plate or replace the gearmotor
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Limit switch contacts oxidized
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Clean the contacts or replace the wiper motor
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Brushes stop at random position
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Limit switch contacts are poorly pressed or oxidized
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Clean the contacts, bend the switch plate if necessary or replace the gearmotor
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Loose crank nut on gear motor shaft
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After installing the crank correctly, tighten the nut (it is advisable to pre-apply paint or anaerobic sealant to the thread)
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Wiper motor runs but blades do not move
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Loose crank nut on gear motor shaft
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After installing the crank correctly, tighten the nut (it is advisable to pre-apply paint or anaerobic sealant to the thread)
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Gear teeth chipped
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Replace gearmotor
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