DescriptionThe windscreen wash/wipe system is operated by a lever on the right side of the steering wheel. The lever can be set to five positions that correspond to different functions by rotating it in a clockwise direction:windscreen wiper off (standstill);intermittent / automatic operation;continuous slow operation;continuous fast operation;'antipanic' temporary fast operation (unstable position, turning the lever in an anti-clockwise direction).Three different functions can be selected by rotating the ring wheel in the intermittent / automatic operating position:on the 'LOW' version the different intermittent speeds come on (from the slowest to the fastest;on the 'HIGH' version with a rain sensor: the different sensor settings comes on: the activation of the rain sensor operates a windscreen wiper stroke as feed-back that the function has been switched on.The adjustment of the windscreen wiper stroke frequency is automatic depending on the amount of water on the windscreen detected by the actual sensor: the frequency varies with continuity from nil (no stroke - windscreen dry) to wiping at the second continuous speed (heavy rain).The windscreen wiper function is operated by pulling the lever toward the steering wheel: this action operates the washer pump: if the lever is held in position, the windscreen wiper also operates according to a specific control logic: the windscreen wiper is activated at the first speed: when the windcreen washer control ceases, an additional stroke is carried out.The control of the functions described above is carried out by an electronic device inside the steering column switch unit which produces the intermittent function, controls the operation of the windscreen wiper motor and the electric windscreen washer pump.The windscreen wash/wipe circuit is protected by a specific fuse and is operated by the ignition-operated relay located in the underdashboard control unit.The windscreen wiper and washer can be operated with the ignition key turned to ON.(INT/A).The correct operation of the rain sensor is controlled by the check function.If there is a rain sensor malfunction, the windscreen wipers operate at the intermittent speed whilst the instrument panel display shows the sensor failure.
Functional descriptionThe electronic device inside the steering column switch unit H5 and the controls on the right lever are supplied at pin 11 of connector A by the line 'controlled by the ignition' (INT/A) of relay T12 protected by fuse F43, both housed in the underdashboard control unit B2. Pin 7 of connector A and pin 9 of connector C of H5 are earthed.Depending on the pre-selected function, the stalk unit H5 (connector A) sends control signals to the windscreen wiper motor N15:from pin 8 for fast operation;from pin 9 for the slow and/or intermittent operation,pin 6, on the other hand, receives the earth signal coming from the motor end of travel cam which stops operation. The windscreen wiper motor N15 is then connected to earth. When operated, the windscreen washer switch on the steering column switch unit H5 sends two signals from pins 10 and 12 of connector A which operate the windscreen washer pump N22 which sends the detergent liquid to the front. Rain sensor K125 is supplied by the INT line protected by fuse F49 of control unit B2, and sends an automatic operation signal to pin 2 of connector A of H5 - via A-BUS serial line of Body Computer M1 - pin 7 of connector D and pin 25 of connector B. The Body Computer M1 is connected, via the CAN line, to the instrument panel E50 to manage the 'failure' warning light if there are problems with the rain sensor.
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting21Open the bonnet lid.1. Release the retainers (1a) and remove the cover (1b).2050746
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting212400802-7040A37fuse box cover - r r1. Disconnect the electrical connections (1a, 1b, 1c, 1d, 1e, 1f).2. Undo the bracket retaining bolt.3. Slightly move the bracket (3a) for the dashboard trim and undothe bolt (3b).4. Undo the other bolts securing the body computer/junction unit.5. Slightly move the body computer/junction unit assembly.6. Disconnect the electrical connections (6a, 6b, 6c).7. Recover the body computer/junction unit.2050752
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050753
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Disconnect electronic control unit electrical connections (1a),(1b), (1c).2. Undo the bolts.3. Recover the control unit.2050754
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Lift up the wiper arm.2. Press on the end of the support (2b) with the retainer (2a) andremove the blade (2c) from the end of the arm. 2050732
5050B34
<anchor>0</anchor><span>Removing</span><icon><imageid>20</imageid></icon>1Refitting211. Release the nut cover.2. Undo the nut and recover the washer.3. Remove the arm.2050733
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