Skip to content

EPBR_a191 — Csm Release Degraded

Full alert identifier: EPBR_a191_csmReleaseDegraded

Message shown in the car

Parking brake did not release Driving may result in vehicle damage

Alert description

Electronic Parking Brake was unable to release fully.

Potential impact

Electronic Parking Brake may not be released, and caliper may be obstructed

Set condition

Electronic Parking Brake faulted during release && (nonterminal == TRUE)

Clear condition

Electronic Parking Brake attempts a new operation

Signals to check

These diagnostic fields are associated with EPBR_a191. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Csm Fault Reason EPBR_a191_csmFaultReason —
Esm Op Trigger EPBR_a191_esmOpTrigger —
Esm State EPBR_a191_esmState —
Esm State Request EPBR_a191_esmStateRequest —
Fault Status EPBR_a191_faultStatus
0
NOMINAL
1
RETRY
2
FAULT
3
FAULT IDLE
—
Monitor Fault Status EPBR_a191_monitorFaultStatus
0
NOMINAL
1
RETRY
2
FAULT
3
FAULT IDLE
—
Monitor Unit Status EPBR_a191_monitorUnitStatus —
Nonterminal Reason EPBR_a191_nonterminalReason —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPBR_a191.

Browse all EPBR alert codes