3360257 - J04 BACK WINDOW WIPER NOT WORKING

The rear wiper does not work when the stalk is operated.
The rear wiper motor power supply is protected by a specific fuse and controlled by a relay, both housed in the underfacia junction unit.
Results of the tests
1FUSE CHECKAll OKProblems metOperation
Check the condition of the rear wiper motor power supply fuse.Continue to Step 2Fuse blownChange fuse
2CHECKING RELAYAll OKProblems metOperation
Check the condition of the rear wiper motor power supply control relay.Continue to Step 3Relay faultyChange relay
3CHECKING STEERING COLUMN SWITCH UNITAll OKProblems metOperation
Check the stalk unit is properly supplied with power See   E3021  REAR WINDOW WASH/WIPE Continue to Step 4Electrical connection between facia control unit and stalk unit broken or not insulated. Restore connection/insulation of the electrical connection between facia control unit and stalk unit See   E3021  REAR WINDOW WASH/WIPE
4CHECKING ELECTRICAL CIRCUITAll OKProblems metOperation
Disconnect the electrical connection on the rear wiper motor side and check for a rear wiper control signal from the stalk unit. See   E3021  REAR WINDOW WASH/WIPE Continue to Step 10No signal from the stalk unitContinue to Step 5
5CHECKING ELECTRICAL CIRCUITAll OKProblems metOperation
Check continuity/insulation of electrical connection between stalk unit and rear wiper motor. Continue to Step 9Electrical connection broken or not insulated Continue to Step 6
6CHECKING ELECTRICAL CIRCUITAll OKProblems metOperation
Check continuity/insulation of electrical connection between stalk unit and facia control unit. See   E3021  REAR WINDOW WASH/WIPE Continue to Step 7Electrical connection broken or not insulated Restore continuity/insulation of electrical connection. Check continuity/insulation of electrical connection between facia control unit and rear wiper motor. See   E3021  REAR WINDOW WASH/WIPE
7CHECKING ELECTRICAL CIRCUITAll OKProblems metOperation
Check continuity/insulation of electrical connection between facia control unit and rear wiper motor. See   E3021  REAR WINDOW WASH/WIPE Continue to Step 8Electrical connection broken or not insulated Restore continuity/insulation of electrical connection. See   E3021  REAR WINDOW WASH/WIPE
8CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsChange body computer node Op. 5505A32
9CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the stalk unit Op. 5550A10
10CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the windscreen wiper motor Op.   5050C42  Search for the fault starting from another symptom'