APS_w242 — Trip MBIST Failure

Full alert identifier: APS_w242_tripMBISTFailure

Alert description

Indicates the reason for the Tesla Inference Processor (TRIP) issue reported by the memory built-in self-test (MBIST). Autopilot features are unavailable.

Potential impact

Autopilot features are unavailable.

Set condition

The Autopilot electronic control unit (ECU) reports an unexpected TRIP issue reported by the MBIST.

Clear condition

System on a chip (SOC) completes a warm reset.

Signals to check

These diagnostic fields are associated with APS_w242. Check the alert's Alert Log in Service Mode Plus for available values.

Signal	Unit
SRAM Bank MBIST Failed `APS_sw242_SRAMBankMBISTFailed`	—
Cluster SRAMMBIST Failed `APS_sw242_clusterSRAMMBISTFailed`	—
Instance `APS_sw242_instance`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of APS_w242.