Conditions For System Main Relay Off

WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.

HPCM turns OFF the system main relays as per the following conditions.

When the ignition switch is turned to OFF
When the air bag activated
When the interlock switch turned OFF
When a malfunction is detected in the hybrid system (fail-safe)
When the 12V battery voltage is low