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tom_est

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Discussion starter · #1 ·
Hi everybody

I am a fresh owner of a 2012 D40 with the V9X engine. Had it for a few days now.

Drives really well and pulls like a train, but there is an anomally I can not figure out.

I get a beep-beep-beep sound randomly from the dash. Sometimes while driving, sometimes right after starting the engine. I can not figure out any logic why it happens. The sequence at times is also different, sometimes one, sometimes three or ten beeps.

Nothing is affected in the performance as far as I can tell, no oil levels are low/declining and no warning lights appear on the dash while beeping. Although the "wrench" is counting back kilometers faster than it should. Also a few times the dash background lighting has come on with a delay of a few seconds.

Any ideas what may cause this?

Booked an inspection at the Nissan dealer next Monday, but is there anything I can do beforehand? ECU reset via battery disconnection? The dealer suggested not to do that - is it because they want to charge me for that service and to it themselves or some other good reason?

Engine has an external performance enhancer installed.

Thanks in advance!

Tom
 
#2 ·
tom_est said:
Hi everybody

I am a fresh owner of a 2012 D40 with the V9X engine. Had it for a few days now.

Drives really well and pulls like a train, but there is an anomally I can not figure out.

I get a beep-beep-beep sound randomly from the dash. Sometimes while driving, sometimes right after starting the engine. I can not figure out any logic why it happens. The sequence at times is also different, sometimes one, sometimes three or ten beeps.

Nothing is affected in the performance as far as I can tell, no oil levels are low/declining and no warning lights appear on the dash while beeping. Although the "wrench" is counting back kilometers faster than it should. Also a few times the dash background lighting has come on with a delay of a few seconds.

Any ideas what may cause this?

Booked an inspection at the Nissan dealer next Monday, but is there anything I can do beforehand? ECU reset via battery disconnection? The dealer suggested not to do that - is it because they want to charge me for that service and to it themselves or some other good reason?

Engine has an external performance enhancer installed.

Thanks in advance!

Tom
Click to expand...
I imagine with the ECU, they are hoping to see if any error codes are being generated.

Do you have a tool to read codes yourself?
 
Discussion starter · #3 · (Edited)
No diagnostics tools unfortunately at my immediate disposal.

Regarding the reset I was thinking if I do it myself then perhaps there is a thin chance of perhaps a faulty sensor read or something resetting itself and all would be well? If the problem persists then probably also after the reset they would get the codes they need?
 
#4 ·
Have you checked the maintenance reminders on head unit?
I seem to remember that they bleeped a reminder when I played with them.

Other than that the only bleeps I can remember are either the service interval or leaving the fog lights on
 
#7 ·
I've had the same thing. Do you have keyless entry, and keep the keys in your pocket whilst you drive?

If so the lock door button is being pressed.

Put the keys in the centre console and see if the noise goes away.

Sounds daft, but that is really a thing. It won't let you lock it with the keys still in the car from key
 
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#8 · (Edited)
tom_est said:
The spanner on the dash I managed to reset when the beeping started at first, but I havent touched the ones on the headunit. Are these also resetable as easily as the spanner?
Click to expand...
It's a fairly simple menu function, dead easy.

Could it be something to do with the go-faster chip?

I do remember somebody had a similar issue, it turned out the previous owner had fitted forward reversing bleepers and they were going off when he got close to other cars!
(Forward reversing bleepers is obviously the wrong description! Best I could come up with)
 
Discussion starter · #10 ·
Thanks to everyone for thinking along!

To my knowledge, the only thing fitted "extra" is the chip. There is also an a-bar with lights, but these seem a little too "passive" for the disturbance. Wish it did, but I do not also have keyless entry. Should try removing the chip?

I thought of the battery myself also, but visually at least it looked quite new. Why it gaught my attention though, was that it was smaller (shorter) than the designated space for it. Capacity 80AH - that enough? Also suspected the battery because of the delay a couple of times when the dash lighting started - as if it lit up when the generator was producing power at higher revs than idle. Still, the battery warning light should be on if that were the case?

Will be around the truck tomorrow and measure battery voltage and try to sort out the service reset. What makes this thing worrying is that the "spanner" is counting back kilometres far faster than it should.

Any other good ideas still welcome - seems to be quite a few on this forum :)
 
#11 ·
i say battery because my previous car a passat started doing the same thing the voltage was dropping below spec on startup and triggering a "reset" of the audible warnings so when you connect and disconnect the power it beeped, modern wiring systems are a bit weird like that
 
Discussion starter · #12 ·
The voltmeter gave me a reading of 12,5V from the battery. So should be more or less okay?

I reset the spanner, reset all service intervals and went for a quick drive. No beeping on the 1km drive, so that should be good, but the dash background lighting came on only half way through the drive. Tacho, speedo on fuel gauge were working also without the lighting. Headunit was fine. So an electrical fault of sorts perhaps?

The spanner also went from 20000 to 19995 with the 1km run, but I suppose it doesn't count back too exactly?
 
#15 ·
Best way to tell is to measure the voltage and then turn several things on without the engine running. Lights/fan etc.

If the battery is ok it should maintain 12volts or thereabouts. If bad it will drop to 10 or 11.

Somebody did have a problem on here which turned out to be a corroded earth connection to the ecu, not sure where it is though.
 
Discussion starter · #16 ·
Had another go at the battery. Ignition on, heater on, radio on good blast - 12,1v. So we could rule out the battery?

Seems more and more like somekind of electrical enigma - also discovered that the seatbelts give no warning sound or sign when not fastened while driving. Dash background lighting came on with a delay again and noticed also that fuel gauge lighting was not as bright as the rest.

Went for a quick spin again, no beeps fortunately but "spanner" now down to 19975 - so that is about four-five times faster than it should be. Does it also take into account short runs and cold starts?
 
#17 ·
I don't know if the V6 has an adaptive service interval, I will check mine.

Have a look under driver's seat, there is a white plug, if someone has unplugged it then the seatbelt warning is disabled.
Battery sounds ok.
 
#19 ·
i had a similar thing with my d40, turned out my rucksack on the passenger seat was setting off the seatbelt sensor as the weight shifted! was clueless for a while until it clicked one night in the dark and i saw the passenger seatbelt light start blinking!!
 
Discussion starter · #20 ·
So back from the Nissan dealer today.

Seems the cause for the beeping was the faulty instrument panel on the dash. They suspect a bad connection somewhere in the chain battery-> instrument panel, or in the panel itself. Hence also the delay in the background lighting coming on. That was also the cause of the beeping according to them. Recommended getting a used panel and replacing it. Does the 2,5l version also suit the V6? Probabaly has to be off a facelift model? Or should I have an electrician have a go at the connections?

Secondly they discovered a small oil leak from the intercooler and left hand side "end-lid/cap". Sorry I don't know the term in English for it, translated it directly :)

No parts were damaged/cracked so can this kind of leak be repaired? The leak is very small, no oil stains on the pavement, but slightly moist underneath.

Otherwise no further faults were discovered :)
 
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tom_est
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