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.
Loading…
| Signal Name | Description | Condition | Impact | Important |
|---|---|---|---|---|
|
THC_w0045_pumpPTFaultMax
|
|
-
|
No
|
|
|
THC_w0044_sanityPumpPT
|
|
-
|
No
|
|
|
THC_w0043_sanityTempAuxHvacEvap
|
|
-
|
No
|
|
|
THC_w0042_tempAuxHvacEvapRange
|
|
-
|
No
|
|
|
THC_w0041_tempAuxHvacEvap
|
|
-
|
No
|
|
|
THC_w0040_pumpPTStop
|
|
-
|
No
|
|
|
THC_w0039_pumpPTLimp
|
|
-
|
No
|
|
|
THC_w0038_radFanSelfError
|
|
-
|
No
|
|
|
THC_w0036_PTCRCanTmo
|
|
-
|
No
|
|
|
THC_w0035_tempAuxHvacDuct
|
|
-
|
No
|
|
|
THC_w0034_compOvercurrent
|
|
-
|
No
|
|
|
THC_w0088_tempBatInRange
|
|
-
|
No
|
|
|
THC_d0007_valveRadByp
|
|
-
|
No
|
|
|
THC_d0008_valveChilByp
|
|
-
|
No
|
|
|
THC_d0009_valveParallel
|
|
-
|
No
|
|
|
THC_d0010_compressor
|
|
-
|
No
|
|
|
THC_d0011_presSnsDis
|
|
-
|
No
|
|
|
THC_d0012_presSnsSuct
|
|
-
|
No
|
|
|
An air spring or an airline is detected to be leaking air
|
An air spring or an airline is detected to be leaking air
|
Air suspension compressor may operate more frequently to level / re-level the vehicle
|
No
|
|
|
Supply voltage to ECU is below 8.5V
|
Supply voltage to ECU drops below 8.5V
|
No direct impact, but functionality may degrade or ECU may reset/shutdown.
|
No
|