DIRER_a253 — Lv Boosted Rail

Full alert identifier: DIRER_a253_lvBoostedRail

Alert description

The Drive Inverter (DIx) detects the Low Voltage (LV) boosted rail voltage is out of specification.

Potential impact

DIx may not operate as expected, which could affect vehicle drive capability. The LV boosted rail provides power to critical control circuitry.

Set condition

DIx detects LV boosted rail voltage out of specification. Alert payload signals provide more information on the specific condition (undervoltage or overvoltage).

Clear condition

Clears when DIx LV boosted rail voltage returns to normal operating range.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Voltage `DIRER_a253_voltage`	V

Signal	Unit
Reason `DIRER_a253_reason` 0 NONE 1 UNDERVOLTAGE 2 OVERVOLTAGE	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DIRER_a253.