Cross-brand / Protocol
OCPP, CCS, NACS, ISO 15118, and CHAdeMO patterns that cross OEMs. Start here when the stage of fail is clear but the cabinet brand is not.
Fault index (67)
NET-C02Cross-brand / Protocol · DC Fast Chargers solo+TLS handshake fail to CSMS
TLS handshake fail to CSMS: charger or site equipment presents this pattern under load or on session start. Techs report…
NACS-H03Cross-brand / Protocol · Cables & connectors solo+NACS thermal derate to zero
NACS thermal derate to zero on protocol: CSMS StatusNotification + connector LEDs shows NACS-H03. Techs see session abor…
ISO-H01Cross-brand / Protocol · Cables & connectorsFree sampleISO 15118 TLS cert expired
ISO 15118 TLS cert expired on protocol: CSMS StatusNotification + connector LEDs shows ISO-H01. Techs see session abort or stall Unavailable until the ranked cause is cleared. Correlate OCPP websocket / SECC / vehicle logs as applicable before opening the cabinet.
CHA-H04Cross-brand / Protocol · Cables & connectors solo+CHAdeMO available current zero
CHAdeMO available current zero: charger or site equipment presents this pattern under load or on session start. Techs re…
OCPP-F02Cross-brand / Protocol · DC Fast ChargersFree sampleHeartbeat timeout to CSMS
Heartbeat timeout to CSMS on protocol: CSMS StatusNotification + connector LEDs shows OCPP-F02. Techs see session abort or stall Unavailable until the ranked cause is cleared. Correlate OCPP websocket / SECC / vehicle logs as applicable before opening the cabinet.
CCS-H09Cross-brand / Protocol · Cables & connectors solo+SECC discovery wrong IP
SECC discovery wrong IP: charger or site equipment presents this pattern under load or on session start. Techs report in…
MET-01Cross-brand / Protocol · DC Fast ChargersFree sampleEnergy meter CRC error
Energy meter CRC error on protocol: CSMS StatusNotification + connector LEDs shows MET-01. Techs see session abort or stall Unavailable until the ranked cause is cleared. Correlate OCPP websocket / SECC / vehicle logs as applicable before opening the cabinet.
CCS-H08Cross-brand / Protocol · Cables & connectors solo+CP state B stuck
CP state B stuck: charger or site equipment presents this pattern under load or on session start. Techs report intermitt…
TEMP-01Cross-brand / Protocol · DC Fast Chargers solo+Ambient derate never recovers overnight
Ambient derate never recovers overnight: charger or site equipment presents this pattern under load or on session start.…
ISO-H02Cross-brand / Protocol · Cables & connectors solo+PnC contract authentication fail
PnC contract authentication fail: charger or site equipment presents this pattern under load or on session start. Techs …
CHA-H03Cross-brand / Protocol · Cables & connectors solo+CHAdeMO vehicle contactor open early
CHAdeMO vehicle contactor open early: charger or site equipment presents this pattern under load or on session start. Te…
NET-C03Cross-brand / Protocol · DC Fast Chargers solo+NAT keepalive drops OCPP websocket
NAT keepalive drops OCPP websocket: charger or site equipment presents this pattern under load or on session start. Tech…
NACS-H04Cross-brand / Protocol · Cables & connectors solo+NACS PP open mid-session
NACS PP open mid-session: charger or site equipment presents this pattern under load or on session start. Techs report i…
CCS-H11Cross-brand / Protocol · Cables & connectors solo+EVSideCableCheck unknown error
EVSideCableCheck unknown error: charger or site equipment presents this pattern under load or on session start. Techs re…
OCPP-F01Cross-brand / Protocol · DC Fast ChargersFree sampleStatusNotification stuck Faulted after reboot
StatusNotification stuck Faulted after reboot on protocol: CSMS StatusNotification + connector LEDs shows OCPP-F01. Techs see session abort or stall Unavailable until the ranked cause is cleared. Correlate OCPP websocket / SECC / vehicle logs as applicable before opening the cabinet.
ISO-H03Cross-brand / Protocol · Cables & connectors solo+Schedule renegotiation abort
Schedule renegotiation abort: charger or site equipment presents this pattern under load or on session start. Techs repo…
RFID-03Cross-brand / Protocol · DC Fast Chargers solo+Local list full — new cards fail
Local list full — new cards fail: charger or site equipment presents this pattern under load or on session start. Techs …
NET-C04Cross-brand / Protocol · DC Fast Chargers solo+Proxy MITM breaks certificate pin
Proxy MITM breaks certificate pin: charger or site equipment presents this pattern under load or on session start. Techs…
CCS-H10Cross-brand / Protocol · Cables & connectors solo+SessionSetup ResponseCode Failed
SessionSetup ResponseCode Failed: charger or site equipment presents this pattern under load or on session start. Techs …
MET-02Cross-brand / Protocol · DC Fast Chargers solo+CT polarity reversed after service
CT polarity reversed after service: charger or site equipment presents this pattern under load or on session start. Tech…
TEMP-02Cross-brand / Protocol · DC Fast Chargers solo+Inlet air filter clog false overtemp
Inlet air filter clog false overtemp: charger or site equipment presents this pattern under load or on session start. Te…
CCS-H07Cross-brand / Protocol · Cables & connectors solo+PP resistor out of range
PP resistor out of range: charger or site equipment presents this pattern under load or on session start. Techs report i…
CHA-H02Cross-brand / Protocol · Cables & connectors solo+CHAdeMO connector lock fail
CHAdeMO connector lock fail: charger or site equipment presents this pattern under load or on session start. Techs repor…
MET-03Cross-brand / Protocol · DC Fast Chargers solo+kWh under-report vs utility CT
kWh under-report vs utility CT: charger or site equipment presents this pattern under load or on session start. Techs re…
NET-C05Cross-brand / Protocol · DC Fast Chargers solo+MTU black hole on cellular path
MTU black hole on cellular path: charger or site equipment presents this pattern under load or on session start. Techs r…
TEMP-03Cross-brand / Protocol · DC Fast Chargers solo+Sun load derate on unshaded cabinet
Sun load derate on unshaded cabinet: charger or site equipment presents this pattern under load or on session start. Tec…
ISO-H04Cross-brand / Protocol · Cables & connectors solo+CertificateInstallation rejected
CertificateInstallation rejected: charger or site equipment presents this pattern under load or on session start. Techs …
CHA-H01Cross-brand / Protocol · Cables & connectorsFree sampleCHAdeMO CAN timeout
CHAdeMO CAN timeout on protocol: CSMS StatusNotification + connector LEDs shows CHA-H01. Techs see session abort or stall Unavailable until the ranked cause is cleared. Correlate OCPP websocket / SECC / vehicle logs as applicable before opening the cabinet.
RFID-02Cross-brand / Protocol · DC Fast Chargers solo+RFID works offline but CSMS rejects
RFID works offline but CSMS rejects: charger or site equipment presents this pattern under load or on session start. Tec…
CCS-H06Cross-brand / Protocol · Cables & connectors solo+Welding detection trip
Welding detection trip: charger or site equipment presents this pattern under load or on session start. Techs report int…
RFID-01Cross-brand / Protocol · DC Fast Chargers solo+RFID reader no UID
RFID reader no UID: charger or site equipment presents this pattern under load or on session start. Techs report intermi…
CCS-H05Cross-brand / Protocol · Cables & connectors solo+Power delivery stops at CurrentDemand
Power delivery stops at CurrentDemand: charger or site equipment presents this pattern under load or on session start. T…
GND-03Cross-brand / Protocol · DC Fast Chargers solo+Bond jumper missing at pedestal
Bond jumper missing at pedestal: charger or site equipment presents this pattern under load or on session start. Techs r…
NET-C06Cross-brand / Protocol · DC Fast Chargers solo+CSMS rate-limits StatusNotification
CSMS rate-limits StatusNotification: charger or site equipment presents this pattern under load or on session start. Tec…
OCPP-F13Cross-brand / Protocol · DC Fast Chargers solo+ChangeAvailability rejected while charging
ChangeAvailability rejected while charging: charger or site equipment presents this pattern under load or on session sta…
OCPP-F12Cross-brand / Protocol · DC Fast Chargers solo+GetConfiguration key unknown storm
GetConfiguration key unknown storm: charger or site equipment presents this pattern under load or on session start. Tech…
OCPP-F09Cross-brand / Protocol · DC Fast Chargers solo+Firmware update stalls at downloading
Firmware update stalls at downloading: charger or site equipment presents this pattern under load or on session start. T…
CCS-H04Cross-brand / Protocol · Cables & connectors solo+Precharge voltage mismatch
Precharge voltage mismatch on protocol: CSMS StatusNotification + connector LEDs shows CCS-H04. Techs see session abort …
GND-02Cross-brand / Protocol · DC Fast Chargers solo+Isolation monitor nuisance trip wet weather
Isolation monitor nuisance trip wet weather: charger or site equipment presents this pattern under load or on session st…
OCPP-F08Cross-brand / Protocol · DC Fast Chargers solo+BootNotification rejected — wrong chargePointModel
BootNotification rejected — wrong chargePointModel: charger or site equipment presents this pattern under load or on ses…