The possible reason
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Elimination method
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The windscreen screen wiper does not work on all speeds
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Breakage or short circuit in feed circuits or oxidation of contact of safety lock F8
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Repair or replace a feed circuit of a safety lock or safety lock F8
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Malfunction of the switch of a screen wiper/washer or the screen wiper engine
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Replace the switch of a screen wiper/washer or the screen wiper engine
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The chain between safety lock F8 and the relay of a screen wiper or the screen wiper engine is torn off or closed
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Repair or replace electroconducting
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Malfunction of the relay of a screen wiper
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Replace the screen wiper relay
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The chain between the relay of a screen wiper and weight G201 is torn off or closed
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Repair breakage or chain short circuit
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The chain between the switch of a screen wiper/washer and the screen wiper engine is torn off or closed
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Repair or replace electroconducting
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The screen wiper does not work on one speed, screen wiper work on other speed is perfectly in order
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Malfunction of the switch of a screen wiper / of a washer
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Replace the screen wiper/washer switch
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The chain between the switch of a screen wiper/washer and the screen wiper engine is torn off or closed
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Repair or replace electroconducting
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Malfunction of the motor of a screen wiper
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Replace the screen wiper motor
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The screen wiper does not work in a faltering mode, screen wiper work in other high-speed modes is perfectly in order
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The chain between safety lock F8 and the relay or the screen wiper engine is torn off or closed
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Repair or replace electroconducting
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Malfunction of the switch of a screen wiper/washer
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Replace the screen wiper/washer switch
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The chain between the switch of a screen wiper/washer or the relay and the screen wiper engine is torn off or closed
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Repair or replace electroconducting
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Malfunction of the relay of a screen wiper
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Replace the screen wiper relay
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Bad grounding G201
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Repair or replace electroconducting
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Malfunction of the engine of a screen wiper
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Replace the screen wiper engine
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The windscreen washer does not work, work of a screen wiper of a windscreen is perfectly in order
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Breakage or short circuit in feed circuits or oxidation of contact of safety lock F9
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Repair breakage or short circuit of a chain or replace a chain or a safety lock
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The chain between safety lock F9 and the switch of a screen wiper / of a washer or the relay is torn off or closed
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Repair or replace electroconducting
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Malfunction of the switch of a screen wiper / of a washer
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Replace the switch or the relay of a screen wiper / of a washer
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The chain between the relay of a screen wiper and weight G201 is torn off or closed
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Repair or replace electroconducting
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The chain between the switch of a screen wiper/washer and the pump of a washer of a windscreen is torn off or closed
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Repair or replace electroconducting
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Malfunction of the pump of a washer of a windscreen
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Replace the pump of a washer of a windscreen
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Bad grounding G201
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Repair or replace electroconducting
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The back screen wiper does not work
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Breakage or short circuit in a feed circuit of safety lock F9
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Repair breakage or short circuit of a feed circuit of safety lock F9 or replace a chain
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Oxidation of contact of safety lock F9
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Replace safety lock F9
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The chain between safety lock F9 and the switch of a screen wiper / of a washer or the screen wiper engine is torn off or closed
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Repair or replace electroconducting
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Malfunction of the switch of a screen wiper / of a washer
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Replace the screen wiper/washer switch
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The chain between safety lock F9 and the motor of a screen wiper of back glass is torn off or closed
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Repair or replace electroconducting
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Malfunction of the engine of a screen wiper of back glass
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Replace the engine of a screen wiper of back glass
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Bad grounding G403
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Repair or replace electroconducting
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The washer of back glass does not work, work of a screen wiper of back glass is perfectly in order
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Breakage or short circuit of a feed circuit of safety lock F9
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Repair breakage or short circuit of a feed circuit of safety lock F9 or replace a chain
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Oxidation of contact of safety lock F9
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Replace safety lock F9
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The chain between safety lock F9 and the switch of a screen wiper / of a washer or the switch of a screen wiper / of a washer and the washer pump is torn off or closed
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Repair or replace electroconducting
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Malfunction of the pump of a washer of a windscreen
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Replace the pump of a washer of a windscreen
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Bad grounding G 102
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Repair or replace electroconducting
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