2398894 - N70 CONTROLS ON THE STEERING WHEEL NOT WORKING

When the radio front panel buttons are pressed/adjusted, the corresponding functions take place. The corresponding function does not take place when the buttons on the steering wheel are operated.
Results of the tests
0OPERATION CHECKAll OKProblems metOperation
When the steering wheel buttons are activated, check that they are working properly, even when the steering wheel is turned. End of diagnosisOne of the steering wheel controls faulty.Replace the NVO
All of the steering wheel controls faulty.Continue to Step 1
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the Examiner diagnostic instrument and check, in the 'CAN network information' environment, whether the node is configured.Continue to Step 2Impossible to connect with the control units.Continue according to the instructions for the diagnostic equipment.
The NVO is not configured.The vehicle CANNOT have this device fitted.
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
With the Examiner check, in the 'CAN Network information' environment, that the node is not in 'Node Inactive'.Continue to Step 4Node in Inactive fault.Continue to Step 3
3ELECTRICAL POWER SUPPLY CHECKAll OKProblems metOperation
Check that the NVO electrical supply is correct See   E3510  RADIO Continue to Step 4Positive and/or earth electrical power supply fault. Replace the defective component (if a fuse is involved, search for the cause of the problem).
4CHECK ELECTRICAL CONNECTIONSAll OKProblems metOperation
Check the condition of the system wiring and the electrical connections concerned, and in particular that each individual pin is correctly connected See   E3510  RADIO Continue to Step 5Electrical connections not working. Restore damaged electrical connections.
Wiring (clock spring) faultyRestore the correct operation of the wiring
5CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present End of diagnosisFault persists Replace NVO
6CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present End of diagnosisFault persists Continue to Step 2