DPB_a007_PMCLeakageDetected
Description
A brake fluid volume leak is detected in the master cylinder.
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.
Potential Impact
System will be running with internal degraded pedal map. Braking may require increased effort.
Customer Facing Message 1
Power braking assist reduced
Customer Facing Message 2
Braking may require increased effort
Audiences
customer;service-fix
Models
Model Y 2025+