Tesla Alert Codes Explained
Every Tesla reports internal alert codes (like BMS_a117)
when something needs attention. Search the dictionary below to find what an alert means and what to do about it.
MyTeslaMate logs them automatically:
hosted TeslaMate with no server to run.
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| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
RCM2_a646_comDIstateMIA
|
|
-
|
No
|
|
|
RCM2_a645_comDASSafetyFrntCntr
|
|
-
|
No
|
|
|
RCM2_a644_comDASSafetyFrntChkSm
|
|
-
|
No
|
|
|
RCM2_a643_comDASSafetyFrntMIA
|
|
-
|
No
|
|
|
RCM2_a641_comGTWCarConfigMIA
|
|
-
|
No
|
|
|
RCM2_a640_comTPMSStatusCMIA
|
|
-
|
No
|
|
|
RCM2_a639_comGTWCarStateMIA
|
|
-
|
No
|
|
|
RCM2_a638_comGTWodoMIA
|
|
-
|
No
|
|
|
Communication to the Restraint Control Module (RCM) on the Chassis or RCM Private CAN Bus is abnormal.
|
The RCM detects a short on the Chassis or RCMPrivate CAN bus.
|
The Safety Restraint System may not perform as designed.
|
No
|
|
|
0x155 ESP_B - Invalid VehicleSpeed
|
The restraint control module has detected an invalid vehicle speed.
|
The Safety Restraint System may not perform as designed.
|
No
|
|
|
Communication to the Restraint Control Module (RCM) on the Party or Left CAN Bus is abnormal.
|
The RCM detects a short on the Party or Left CAN bus.
|
The Safety Restraint System may not perform as designed.
|
No
|
|
|
0x228 GTW_airbagCutoffStatus - Counter Error
|
There is a counter error with the GTW ACS status message.
|
The Safety Restraint System may not perform as designed.
|
No
|
|
|
0x228 GTW_airbagCutoffStatus - Checksum Error
|
There is a checksum error with the GTW ACS status message.
|
The Safety Restraint System may not perform as designed.
|
No
|
|
|
RCM2_a629_comEPBStatusCntr
|
|
-
|
No
|
|
|
RCM2_a628_comEPBStatusChkSm
|
|
-
|
No
|
|
|
RCM2_a627_comEPBStatusMIA
|
|
-
|
No
|
|
|
RCM2_a626_comESPCCntr
|
|
-
|
No
|
|
|
RCM2_a625_comESPCChkSm
|
|
-
|
No
|
|
|
RCM2_a624_comESPCMIA
|
|
-
|
No
|
|
|
RCM2_a623_comESPBCntr
|
|
-
|
No
|