Skip to content

UMC_a040 — Gnd Disconnected

Full alert identifier: UMC_a040_gndDisconnected

Alert description

Universal Mobile Connector (UMC) AC input side ground impedance exceeded warning threshold. Charging is not affected.

Potential impact

UMC will display a warning LED pattern, but will allow charging at the nominal current

Set condition

UMC AC input side ground impedance is above 1 Mohm

Clear condition

UMC AC input side ground impedance has fallen below 10 kOhms

Signals to check

These diagnostic fields are associated with UMC_a040. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Ground Impedance UMC_a040_groundImpedance Ohm

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of UMC_a040.

Browse all UMC alert codes