EWR Internal System Failure
â–¶ How to fix
Check the faulty ECU unit
What you'll see
The driver will not be able to operate the electrical wheelchair ramp.
System reaction
Functionality of the electrical wheelchair ramp is missing or degraded. Error for the ramp will be shown in the ICL.
Diagnostic depth
Detection
Internal error in the control unit for the electrical wheelchair ramp is detected by the ramp itself. The information about this error is sent from the ramp to the MBS.
Possible cause
EWR faulty unit