CMPT_a139 — Large Current Offset
Full alert identifier: CMPT_a139_largeCurrentOffset
Alert description
A phase current offset of the compressor multiphase motor is greater than the expected variance. Compressor may not operate as expected.
Potential impact
Compressor may not operate as expected. Controller may be damaged.
Set condition
A phase current offset greater than the expected variance is detected.
Clear condition
Current calibration re-runs. Calibration is done during start-up, and the condition may resolve during a vehicle power cycle.
Signals to check
These diagnostic fields are associated with CMPT_a139. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Bus Current Offset
CMPT_
|
amp |
Phase A Current Offset
CMPT_
|
amp |
Phase B Current Offset
CMPT_
|
amp |
Phase C Current Offset
CMPT_
|
amp |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of CMPT_a139.