EWR invalid power supply. Prio 2
â–¶ How to fix
Check the power supply (vehicle), cable harness and connectors.
What you'll see
Missing EWR functionality
System reaction
# Might be updated: Amber warning lamp will be shown EWR in ICL
Diagnostic depth
Detection
Invalid power supply voltage (<16 or >32 V) is detected at the input for power supply to the control unit for the EWR.
Possible cause
- Low or high battery voltage - Fault in the wiring