---
active: true
derived: false
header: 'Watchdog monitors the apply controller'
level: 1.2
normative: true
reviewed: null
links:
  - SYS-001
asil: D
---

# SWE-002: Watchdog monitors the apply controller

An independent watchdog must monitor the liveness of the apply controller with a 100 ms timeout and, on failure to respond, transition to the safe state (apply).