DPB_a036_lossOfPDUInstanceDetected

Loss of a Protocol Data Unit (PDU) instance. First In, First Out (FIFO) flushed because of an overrun.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Power braking assist reduced
Braking may require increased effort

Impact

System will be running with internal degraded pedal map. Braking may require increased effort.

Description

Loss of a Protocol Data Unit (PDU) instance. First In, First Out (FIFO) flushed because of an overrun.

Cause

Loss of a PDU instance in PDU router (FIFO flushed because of an overrun), FIFO buffer is full and Tx Confirmation for previously Transmitted Pdu is pending and a new request has been received on the same Routing Path.

Clear condition

No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.

Models

Model Y 2025+

Visibility

customer, service-fix

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