Error message

A020 Short circuit on 24 V of the T.BRK.B signal

Cause of error

- Error during braking control test
- Signal level = +24 V at input: -T.BRK.B of the SPL module
although 0 V is expected due to the control.

Error correction

- Check the external wiring of the brakes and the T.BRK signal.
- Check the relay for the brake control.
- Inform your service agency.