Nissan Primera P12 NATS problem - Urgent please!!

I'm sorry to hear of your car problems David (genuinely) but I'm not sure why you've chosen to strike out at this forum / club and also all members who own a P12 or the Staff Team that run the forums.

I'll give you the fact that it must have been a shitty day, I'm a family man as well etc.

But the forums helped you get your car started and get home, it took you bob on an hour to find the information "on here" and get going again. Yet you still think it's fair to have a go?

It didn't take "a whole day and night", it took just 1 hour and it would have been quicker if you'd have followed the information correctly.

I can understand you may be frustrated that no one here is giving you the fix for this problem, so you can put it to bed once and for all.. But you've highlighted the 1 problem that is always the big unknown on a Nissan Primera (all models included).. The wonder that is Nissans awesome NATS system!

For the many years I have owned and driven Nissan Primeras and run these forums... There is only subject that stops us all from being 100% able to say "this is it, the fix" and it's always NATS.

NATS = Pain in the arse and then let Nissan take you in the arse, whilst they try to make sense of it.

The thread title change was done to help you - Most members who read the General Section are doing so selectively. The P10 guys will read the P10 threads, the P11 guys the P11 threads and so on... When selectively reading thread titles, after changing yours to add the car reference, it strengthened the chances of the right crowd reading it.

It's been a bad day for you fella and you have my 100% sympathy but having a go at the club / staff / it's members and any member who owns a P12, that's not exactly fair.

Take care,
Shaun

 

 

The thread is long but this particular solution is towards the end. It could be a few things with the NATs but this is perhaps worth a punt. Try taking the relay out and warming it up

 

All points above are fair and reasonable.   I did apologise quite clearly further up the thread but will add a further, genuine sorry for some of my ill-thought out comments, earlier in the thread.

 

I appear to have fixed the issue today by;

 

- Cleaning out the rear offside light cluster,

- Fitting the 'simple earth fix' wire (much easier than I was expecting),

- Fitting 2 x new CR2025 batteries to my key fobs,

- Reprogramming the key fobs,

- Disconnecting the main car battery for 45 mins,

- Fully charging my main car battery,

 

Now clearly that's a lot of actions! So I'm not 100% clear on which have them has done the trick but I'm really chuffed that the problem's been fixed.   I've been starting the car constantly thorughout the day, with no more NATS issues.

 

Whne I was using the SEARCH function for help on the matter, I came across a post where someone had had the same problem, and a mechanic had said the issues was caused by a failing main car battery.   I must admit I thought to myself "how on Earth can it be that, when the rest of the electrics are working ok, and when the starter motor runs fine, once the NATS has disabled".... I thought it sounded like a fob off .......... however, having done all of the above, and spent most of the day on the car, I suspect that removing and fully charging my main car battery is probably what fixed the issue.

 

It does seem strange that a less than prime car battery could stop the NATS sensor on the barrel from picking up the chip in the key, yet still run the starter motor, but that does appear to have been the case.

 

Now, whether I'll now sell the car, or keep it "on trial" for a week, then perhaps eat my words and keep it longer remains to be seen!

 

I appreciate I'll be the 'bad guy' of this forum for a good while yet, but perhaps one day I can help someone on here in a sticky situation, with my new found exerience of P12 electrical / earth / NATS and battery issues. 

 

Cheers,

 

Few hours later, the temperatire has dropped a few degrees and the car is still starting first time, on the button, so all good.

 

The current battery looks quite old, I'd bet after a few winters like this one, it's just not holding optimum charge any more, so still suspect this was the culprit for the NATS woes.

 

I have a brand new, ununsed Halfords Calcium battery in the garage - it's exactly the right size BUT, the terminals are on the wrong size (it was bought for a Santa Fe but then not needed).

 

.....so tomorrow's project will be seeing of the battery can be fitted without the stressing the main pos and neg cables (they don't appear to have much play but we'll see).

 

If it doesn't fit I'll jsut pick up  new one - a new battery is rarely a wasted investment, especially in Winter.

 

Hey, they're great these Primera P12's aren't they?    

 

Guns far too quick out o' the holster, that's always been my trouble.

 

Cheers,