Hood Release is broken, can not open hood even when I pull on cable,how do I open the hood?

Normally, the cable snaps off from behind the cabin release lever. In that case you can pull the cable end with Locking Grips. If it has broken at the hood end, and they have a history of it, there are videos in the link to get in through the grill.

https://www.google.com/search?q=2012+Nissan+Murano+hood+won%27t+open+after+pulling+hood+release

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Take a pair of pliers, and pull the cable where handle hooked to it. Helps to have some one push down on hood while you pull cable.

If the plastic hood release handle inside is broken, can you reach the steel cable, if so, use a pair of vice grips to grab the cable and pull. Sometimes it helps to have a helper standing at the end of the hood and pop the hood with palm of hand, in the area of under hood release mechanism, at the same time your pulling the cable.

If cable is broken, some makes and models, you can remove front grille and get at under hood release mechanism.

There is usually a primary hood release, inside vehicle, and a secondary release under the hood, you have to slide your hand under the hood to release, sometimes you have to press down on the hood a little to move release. Trying to shut the hood with secondary release engaged can be difficult, you don't have the distance and the weight of hood to swing down.

push down on the hood while someone pulls the cable
if not cut the cable and pull to open sounds like the cable is broken anyway

If you pull out on hood release & it feels like some resistance cable is not broken. Have someone pull release & hold pulled outward while you hit the front of the hood near grill, with palms of your hands. If it releases upward, release 2nd catch. Raise hood & locate plastic or rubber hood stops. There is one on each side of hood screwed into radiator core support. Raise each one an even full turn. This will allow it to release properly.

first, try smacking the hood at one of the front corners while someone else pulls the release handle. or even after you've pulled on it. if that works, once open, adjust and lubricate the hood latch assembly. if it still won't open, and it's the cable and not the latch you'll have to replace it anyway, so instead of removing the grill, cut the cable behind the pull lever under the dash where you can reach it. then skin the outer cable insulation away from the actual steel cable exposing an inch or two of it. then holding the insulation and plastic housing with pliers, grab the steel cable itself with pliers and pull it to open the hood. then replace the cable. the further you can reach up under the panel the better your chances of getting past the broken part of the cable and avoid removing the grill. you might also be able to gain access from up under the car if you're lucky.

depending on where the cable is broken your can still release and open the hood. if it is broken inside the van in the footwell is the easiest...locate the end of the cable and with a set of visegrips pull the cable to release the hood.

take off the left front wheel and fender well. slice off the hood cable insulation get a hook too pull the wire have a buddy pull up on the hood while doing this. Should pop open then hope this helps u out.

The cable is held in place by a metal bracket. If it cam off the bracket it won't work.

Look behind the part you pull and you will see the wire and the outer part of the cable. The end of the outer part of the cable has a groove neer the end. This groove slides onto a slot that is located just behind the pull latch. Once you see it it will make since on how it should go.

You can also grab the outer part of the cable and pull the inner wire. If you can pull the wire almost out, then it is broken. But the chances of that are very low.

on the left side of the drivers side their is a panel with the hood release Pull off the cover of the hood release and you will see a cable connected to the hood release. take some pliers and give it a good pull.
if you dont hear a click, have someone pull the hood up while you pull on the hood release cable. next their will be little space to take off the grille for easier acces. take off the grille carefully by prying it off carefully on each side. push the grill up and pull it towards you going up then down.
Now all you have to do is stick a flathead screwdriver or philips. and on the bottom of the hood release on the hood stick the screwdriver under the release and push the screw driver down while pushing the hood up.