199000826 - J004 BACK WINDOW WIPER NOT WORKING

With the ignition ON, when the lever on the right of the steering wheel is operated, the rearscreen wipers do not work properly, but the rearscreen washer does work
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
With the panel off, check that the pin is correctly fastened to the arm carrier by lifting the wiper blades upMove on to Step 1The arm is not correctly secured (nut defective or not correctly tightened)Replace and/or tighten the nut to torque
1REARSCREEN WIPER FUSE CHECKAll OKProblems encounteredOperation
Check the condition of the rearscreen wiper fuseMove on to Step 2The rearscreen wiper fuse is brokenReplace the rearscreen wiper fuse (and find out what could have caused it to blow)
2VEHICLE WIRING CONNECTIONS CHECKAll OKProblems encounteredOperation
Following the    Op. 7015A04 TAILGATE INTERIOR PANEL - R+R remove the protective panel on the rear tailgate and check the condition of the vehicle wiring connector and make sure it is correctly fitted in the rearscreen wiper socketMove on to Step 31. Connector damaged2. Connector not correctly fitted1. Replace the connector2. Restore correct connection
3CHECK ON TENSION AT WIRING TERMINALSAll OKProblems encounteredOperation
Disconnect the connector from the rearscreen wiper and access the panel and select the various functions using the steering column switch unit checking the voltage at the wiring termiansl (correct voltage is the battery voltage 13.5 V).Move on to Step 41. The voltage measured is not correct (the wiring is broken)2. The voltage measured is the same as that of the battery (rearscreen wiper defective)3. Stalk unit not working properly1. Restore the correct connections or replace the steering column switch unit2. Move on to Step 53. Move on to Step 6
4REARSCREEN WIPER MOTOR POWER SUPPLY CHECKAll OKProblems encounteredOperation
Check the following, in order:- motor earth connection;- motor connection with steering column switch unit    See E3021 REAR WINDOW WASH/WIPE Move on to Step 5Electrical connection interruptedRestore the correct connections    See E3021 REAR WINDOW WASH/WIPE
5REARSCREEN WIPER MOTOR CHECKAll OKProblems encounteredOperation
Check that the rearscreen wiper motor is working properlyMove on to Step 6Rearscreen wiper motor faultyReplace the rearscreen wiper motor    Op. 5050C42 REAR WIPER MOTOR - R+R
6CHECK ON STEERING COLUMN SWITCH UNIT CORRECT OPERATIONAll OKProblems encounteredOperation
Check that the stalk unit is working properly: in particular the rearscreen wiper switch    See descriptions 5550 WARNING AND MANOEUVRING INDICATORS End of diagnosisStalk unit not working properlyReplace the steering column switch unit    Op. 5550A10 STALK UNIT ASSEMBLY - R+R