DIRER_a077 — Lv Supply UV
Full alert identifier: DIRER_a077_lvSupplyUV
Alert description
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery power supply undervoltage event.
Potential impact
Drive unit enters unit limp mode (see DI_a126_limpMode)
Set condition
LV supply voltage to DI (refer to lvSupply) is disconnected or drops below lower voltage threshold
Clear condition
LV supply rises back above lower threshold
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 |
|---|---|
Lv Supply V
DIRER_
|
V |
Check other alerts
With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DIRER_a077.