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 |
|---|---|---|---|---|
|
THC_w0030_pumpPT2FaultMax
|
|
-
|
No
|
|
|
THC_w0031_compNoFeedbk
|
|
-
|
No
|
|
|
THC_w0087_tempBatIn
|
|
-
|
No
|
|
|
THC_w0120_condLeftShutrLossCom
|
|
-
|
No
|
|
|
THC_w0118_fanRight
|
|
-
|
No
|
|
|
THC_w0116_fanLeft
|
|
-
|
No
|
|
|
THC_w0115_sanityBatHeater
|
|
-
|
No
|
|
|
The thermal controller (THC) has detected via a DCDC converter signal that the battery heater circuit is open or shorted or there is a battery heater hardline fault.
|
The DCDC converter signals that the battery heater circuit is open or shorted or there is a battery heater hardline fault.
|
The battery heater will be unable to regulate temperature. Charging may not operate as expected.
|
No
|
|
|
THC_w0112_PTCTempRange
|
|
-
|
No
|
|
|
THC_w0110_PTCBankStuckOn
|
|
-
|
No
|
|
|
THC_w0105_coolantBottleLowLevel
|
|
-
|
No
|
|
|
The thermal controller (THC) detects reduced performance in the battery heater.
|
Reduced battery heater performance detected.
|
Battery heater may not operate as expected.
|
No
|
|
|
THC_w0098_sanityTempChargerPTIn
|
|
-
|
No
|
|
|
THC_w0097_tempChargerPTInRange
|
|
-
|
No
|
|
|
THC_w0096_tempChargerPTInSensor
|
|
-
|
No
|
|
|
THC_w0095_sanityTempBatHeater
|
|
-
|
No
|
|
|
The thermal controller (THC) detects that the battery heater temperature is not within the expected range.
|
Battery heater temperature is detected as not within the expected range.
|
The battery heater will be unable to regulate temperature. Charging may not operate as expected.
|
No
|
|
|
The thermal controller (THC) detects that the battery heater temperature is not within the expected range.
|
Battery heater temperature is detected as not within the expected range.
|
The battery heater will be unable to regulate temperature. Charging may not operate as expected.
|
No
|
|
|
THC_w0029_sanityPumpPT2
|
|
-
|
No
|
|
|
THC_w0028_sanityTempAuxHvacDuct
|
|
-
|
No
|