Skip to content

DPB_a007 — PMC Leakage Detected

Full alert identifier: DPB_a007_PMCLeakageDetected

Alert description

A brake fluid volume leak is detected in the master cylinder.

Potential impact

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

Set condition

Loss of brake fluid in the tandem master cyclinder or pedal feel simulator. The monitoring calculates a leakage rate in the master cyclinder out of the volume loss over time during a brake event. An alert is set if the caclulated leakage rate exceeds a critical threshold. This threshold is a result of the vehicle backup calculation and is therefore vehicle-specific.

Clear condition

Good Check is performed after a monitored brake event if the calculated leakage rate is in an uncritical range.

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of DPB_a007.

Browse all DPB alert codes