CP_a090 — Ccs Evse Low Iso

Full alert identifier: CP_a090_ccsEvseLowIso

Alert description

During a DC fast charging session at a Combined Charging System (CCS) charging station, the electric vehicle supply equipment (EVSE) reports low isolation resistance.

Potential impact

CCS charging may not start or may be interrupted.

Set condition

The CCS DC EVSE reports low isolation resistance during a charging session.

Clear condition

The CCS DC EVSE reports nominal isolation resistance or the communication channel with the EVSE is no longer established.

Signals to check

These diagnostic fields are associated with CP_a090. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
Ccs Dc State `CP_a090_ccsDcState`	—
Evse Iso Status `CP_a090_evseIsoStatus` 0 INVALID 1 VALID 2 WARNING 3 FAULT 4 NO IMD	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of CP_a090.