2398790 - J04 BACK WINDOW WIPER NOT WORKING

With the key in the ON position, when the lever located on the right of the steering wheel is operated, the rear screen wipers do not work properly.
Results of the tests
1CHECK ON REAR WINDOW WIPER MOTOR SUPPLYAll OKProblems metOperation

Check, in order:

Continue to Step 2Connection brokenRestore the connections See   E3021  REAR WINDOW WASH/WIPE
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the diagnostic equipment (Examiner Plus or Smart) to the diagnostic socket and check that there are no faults in the Body ComputerContinue to Step 3Body Computer faultyContinue according to the instructions for the diagnostic equipment
3CHECK ON REARSCREEN WIPER MOTORAll OKProblems metOperation
Check that the rearscreen wiper motor is working properlyContinue to Step 4Rearscreen wiper motor faultyReplace the rearscreen wiper motor Op.   5050C42 
4CHECK ON STEERING COLUMN SWITCH UNITAll OKProblems metOperation
Check that the steering column switch unit is working properly, in particular the contacts with the rearscreen wiper motor. Continue to Step 5Faulty steering column switch unitReplace the steering column switch unit Op.   5550A12 
6CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsReplace the Body Computer Op.   5505A32  Search for the fault starting from another symptom'