GTW_w320 — Mcu Uv Prot Unexpected Disarm

Full alert identifier: GTW_w320_mcuUvProtUnexpectedDisarm

Alert description

The vehicle Gateway (GTW) hardware detects that the undervoltage protection unexpectedly disarmed. The hardware may not be able to provide the undervoltage protection when it is needed.

Potential impact

This could indicate a hardware issue with the undervoltage protection circuit and should be investigated.

Set condition

The vehicle GTW detects that the undervoltage protection unexpectedly disarmed.

Clear condition

The alert clears when the vehicle exits drive.

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of GTW_w320.

GTW_w321 — Mcu Uv Prot Failed To Disarm GTW_w321_mcuUvProtFailedToDisarm The vehicle Gateway (GTW) hardware detects that the undervoltage protection failed to disarm. The Media Control Unit (MCU) might still be arming the undervoltage protection.
GTW_w318 — Mcu Uv Prot Activated GTW_w318_mcuUvProtActivated The vehicle Gateway (GTW) hardware detects an undervoltage and disables the Graphics Processing Unit (GPU) in order to allow the other low voltage (LV) systems to continue operating.
GTW_w357 — Mcu Uv Prot Cant Unlatch GTW_w357_mcuUvProtCantUnlatch The vehicle Gateway (GTW) unsuccessfully attempted to disengage the undervoltage protection loadshed circuit. May indicate the Media Control Unit (MCU) was engaging the loadshed circuit when GTW was trying to disengage it.
GTW_w319 — Mcu Uv Prot Failed To Arm GTW_w319_mcuUvProtFailedToArm The vehicle Gateway (GTW) hardware detects that the undervoltage protection failed to arm. The hardware will not be able to provide the undervoltage protection when it is needed.
GTW_w324 — Mcu Uv Prot DGPU Stuck Off GTW_w324_mcuUvProtDGPUStuckOff The vehicle Gateway (GTW) hardware detects that the Graphics Processing Unit (dGPU) could not be turned on during a undervoltage protection self test.

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