CP_a006 — Lost Comms BMS

Full alert identifier: CP_a006_lostCommsBMS

Message shown in the car

Unable to charge Service is required

Expected Battery Management System (BMS) controller area network (CAN) messages are missing. Charging may not start.

Charging may not start.

Charge port (CP) does not receive all expected controller area network (CAN) messages from the Battery Management System (BMS).

Charge port (CP) receives all expected controller area network (CAN) messages from the Battery Management System (BMS).

These diagnostic fields are associated with CP_a006. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
BMS FC Limits MIA `CP_a006_BMS_FC_limits_MIA`	—
BMS Bmb Min Max MIA `CP_a006_BMS_bmbMinMax_MIA`	—
BMS Charge Status MIA `CP_a006_BMS_chargeStatus_MIA`	—
BMS Cp Fault Line Status MIA `CP_a006_BMS_cpFaultLineStatus_MIA`	—
BMS Dc Charge Limits MIA `CP_a006_BMS_dcChargeLimits_MIA`	—
BMS Epto Status MIA `CP_a006_BMS_eptoStatus_MIA`	—
BMS Evse Pack Info MIA `CP_a006_BMS_evsePackInfo_MIA`	—
BMS Hv Pack Status MIA `CP_a006_BMS_hvPackStatus_MIA`	—

Show 3 more fields

Signal	Unit
BMS Kwh Counter MIA `CP_a006_BMS_kwhCounter_MIA`	—
BMS Soc Status MIA `CP_a006_BMS_socStatus_MIA`	—
BMS V 2 X Info MIA `CP_a006_BMS_v2xInfo_MIA`	—

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of CP_a006.