Question about 1986 Renault Sport

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Earthing fault??? indicators, hazard warning lights, windscreen wipers and drivers side electric window fail to work ; usually after a spell of wet weather I think there may be a loose/corroded common earthing point, if so, where is it?

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Could be in the starter circuits or the batterie connectors

Posted on May 29, 2008


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Citroen relay 2011 i have no wipers windows or mirrors and the battery drains in about 4 days ??? otherwise faultless , any ideas , many thanks

Windscreen wipers not working after jump starting vehicle.

Affected vehicles

  • All models.



  • Windscreen wiper motor and engine wiring harness damage caused by jump starting vehicle using incorrect earth point.


Parts Earth point warning label
  • Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  • If no fault(s) found: Replace windscreen wiper motor and engine wiring harness.
  • Attach earth point warning label Fig.126139.1.

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The Haynes manual says the following:-
The central contol unit (CCU) is located in the back of the fusebox below the driver's side fascia. If a fault develops you have to use a LR delaer to use the diagnostics. The unit controls the anti-theft, windscreen wipers, courtesy lamp delay, door opening warning lamp, key-in alarm,rear foglights, light-on alarm, seat belt warning, handbrake warning, rear screen wiper, tailaget window and many others.
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I have the same problem - it is the relay switch attached to and behind the hazard warning triangle on the dashboard. Pull it all out (gently and replace (£60 ish). The indicators and hazard lights are on the same relay circuit. This is a well known problem for this car (amongst others - how about the wipers sticking)

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