939003614 - J002 WINDSCREEN WIPERS NOT WORKING

With the ignition ON, when the lever on the right of the steering wheel is operated, the windscreen wipers do not work properly
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
With the panel off, lift up the wiper blades and check that the pins are correctly fastened to the arm holders.Move on to Step 1The arms are not correctly fastened (nut defective or not correctly tightened).Replace and/or tighten the fixing nut to torque.
1WINDSCREEN WIPER FUSE CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the condition of the windscreen wiper fuse.Move on to Step 2The fuse is broken.Replace the fuse (and find out what could have caused it to blow).
2VEHICLE WIRING CONNECTIONS CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Following the removal of the wiper arms and trim, check the condition of the vehicle wiring connector and make sure it is correctly inserted in the windscreen wiper socket.    Op. 5050B34 WINDSCREEN WIPER ARM/S COMPLETE WITH BLADE - R+R Move on to Step 31.Connector damaged.1. Replace the connector.
2.Connector not correctly inserted.2. Restore correct connection.
3CHECK ON TENSION AT WIRING TERMINALSALL OKPROBLEMS ENCOUNTEREDACTION
Disconnect the connector from the windscreen wiper and switch on the panel and select the various functions using the steering column switch unit checking the tension at the wiring terminals (correct tension at battery terminals 13.5 V).End of diagnosis1. The voltage measured is not correct (the wiring is broken or the steering column switch unit is not working properly).1. Restore the correct connections and/or replace the steering column switch unit.Op. 5050A12 WINDSCREEN WASHER FLUID RESERVOIR FILLER PIPE (IN ENGINE COMPARTMENT) - R.R.
2. The voltage measured is the same as that of the battery (windscreen wiper defective)2. Move on to Step 4.
4WINDSCREEN WIPER MOTOR POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the following, in order:

  • Connection to earth of motor;
  • Motor power supply line
    See E3020 WINDSCREEN WASH/WIPE
Move on to Step 5Connection broken.Restore the correct connections.
5WINDSCREEN WIPER MOTOR CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check that the windscreen wiper motor is working properly and, in particular, the internal electronic device.End of diagnosis1.Motor intermittent electronic device faulty.1. Replace the intermittent electronic device.Op. 5050B52 FRONT WINDSCREEN WIPER MOTOR INTERMITTENT FUNCTION - R R
2. Windscreen wiper motor faulty.2. Replace the windscreen wiper motor.    Op. 5050B42 WINDSCREEN WIPER MOTOR - R+R