HVBATT_a019 — Hs Shunt Tcr Cal Not Used
Full alert identifier: HVBATT_a019_HsShuntTcrCalNotUsed
Alert description
The low side shunt thermal coefficient of resistance (TCR) calibrations are not being used for high voltage (HV) current sensing. The default low side shunt TCR coefficients will be used and current measurement accuracy may be reduced.
Potential impact
The default low side shunt TCR coefficients will be used for high voltage (HV) current sensing. Low side shunt current measurement accuracy may be reduced.
Set condition
The stored low side shunt bar resistance is invalid or the written gain is outside the allowed tolerance.
Clear condition
The stored low side shunt bar resistance is valid and the written gain is within the allowed tolerance.
Signals to check
These diagnostic fields are associated with HVBATT_a019. Check the alert's Alert Log in Service Mode Plus for available values.
| Signal | Unit |
|---|---|
Stored Coeff A Valid
HVBATT_
|
— |
Stored Coeff B Valid
HVBATT_
|
— |
Stored Coeff C Valid
HVBATT_
|
— |
Stored Coeff D Valid
HVBATT_
|
— |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of HVBATT_a019.