Exiting Safe Mode

The software safe mode is exited and the module goes back to the normal mode when:

• On IPM, hardware inputs return to a coherent state;
• The lost CAN signal comes back while timeout has not elapsed;
• The CAN network returns to a normal state without reaching BUS OFF state.

Software safe mode is also exited when the software rescue mode is entered (problem does not disappear).

Hardware safe mode is exited and the module goes back to normal mode if the internal problem disappears (watchdog is properly triggered again). If the problem stays, hardware safe mode is exited to enter hardware rescue mode.