Model Y

EPASTS_a039 — Csoh Ch2 Cs Error Err At Reset

Full alert identifier: EPASTS_a039_csohCh2CsErrorErrAtReset

Alert description

This alert is reported when CRC check failed, value of per-instance memory is other than the pattern or the actual per-instance memory value not equal to the saved per-instance memory value.

Potential impact

EPAS full loss of assist.

Set condition

EPAS uC internal memory (CSOH_CH2 management storage) failure (integrity) at startup.

Clear condition

Perform EPAS Software update.

Signals to check

These diagnostic fields are associated with EPASTS_a039. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
Debug Info `EPASTS_a039_debugInfo`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTS_a039.

EPASTS_a038 — Csoh Ch1 Cs Error Err At Reset EPASTS_a038_csohCh1CsErrorErrAtReset This alert is reported when CRC check failed, value of per-instance memory is other than the pattern or the actual per-instance memory value not equal to the saved per-instance memory value.
EPASTS_a130 — Mrcc Config Cs Error Err EPASTS_a130_mrccConfigCsErrorErr This alert is reported when there is a CRC failure in the periodic register CRC checking. MCU internal error OR SW systematic failure
EPASTS_a118 — Mcussc Flash Cs Error Err EPASTS_a118_mcusscFlashCsErrorErr This alert is reported by MCUSafetyStartupChecks_TC3x (MCUSSC) component when the flashed SW is incorrect or flash memory failure. Calculated CRC not matching stored CRC.
EPASTS_a117 — Mrcc Startup Reg Cs Error Transient Err EPASTS_a117_mrccStartupRegCsErrorTransientErr This alert is reported when there is a transient CRC failure in register CRC check.
EPASTS_a116 — Mrcc Startup Reg Cs Error Static Err EPASTS_a116_mrccStartupRegCsErrorStaticErr This alert is reported when the Start-up register check failed: MCU internal error OR SW systematic failure

Browse all EPASTS alert codes