2751120 - 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 | ||||
| 1 | OPERATION CHECK | All OK | Problems met | Operation |
|---|---|---|---|---|
| When the steering wheel buttons are activated, check that the corresponding operation is correct. | Continue to Step 2 | One of the steering wheel controls faulty. | Continue to Step 2 | |
| All of the steering wheel controls faulty. | Continue to Step 3 | |||
| 2 | STEERING WHEEL MODULE CHECK | All OK | Problems met | Operation |
Check, in order:
| Continue to Step 4 | Wiring faulty. | Restore the correct operation of the wiring | |
| Wiring faulty. | Repair/replace the controls on the steering wheel | |||
| 3 | RADIO MODULE CHECK | All OK | Problems met | Operation |
| Check at the radio connector that the signals are correctly received from the module on the steering wheel See E3510 RADIO | Continue to Step 4 | Radio controls from steering wheel conversion module faulty. | Replace the radio Op. 5570T80 | |
| 4 | Continue as instructed by the tester | All OK | Problems met | Operation |
| Check that the fault is no longer present | End of diagnosis | Fault persists | Replace the radio Op. 5570T80 | |