Jump to content
SAU Community

Recommended Posts

JDM R35 2 1/2 years old

Tried to start it about 3 weeks ago, the battery was a bit low as I hadn't used the car for 2 months.

First it wouldn't start. all dash light on,

starter button nothing, but the headlights came on, and the headlight switch could not turn them off.

Then it finally started,but It wold stop.

Tried disconecting the battery, car still running, headlight still on, no way to stop it,apart from clamping a fuel line.

Tok it for a drive, after about 6 kms the headlights went off.

drove for 12 kms, stopped, and the starter switch stopped the car and it started again normally.

Everything operating as new again.

Tried to start it again yesterday, dash lights on, headlights on again, starter switch nothing.

Disconected the battery, dash light and headlight off.

So I charged the battery over night and tried again this morning, same thing again , dash and headlight on but it won't start.

Had to disconected the battery to turn the lights off.

Help Help any ideas all please???????

Link to comment
https://www.sau.com.au/forums/topic/362025-help-r35-gone-crazy-again/
Share on other sites

Thanks guys but it's not the battery.

Battery shows 12.9 volts plus tried a jump starter as well.

why are the headlight coming on?

Why wonldn't the engine turn off when it was running?

It must be to do with the can bus system somewhere.

might need a consult 3 to check it out.

Thanks guys but it's not the battery.

Battery shows 12.9 volts plus tried a jump starter as well.

why are the headlight coming on?

Why wonldn't the engine turn off when it was running?

It must be to do with the can bus system somewhere.

might need a consult 3 to check it out.

Batteries can show 14V and still be stuffed, especially after sitting around unused then quickly charged

Batteries can show 14V and still be stuffed, especially after sitting around unused then quickly charged

I agree but I have a multi meter on it and when I press the start button the voltage doesen't change, just silence.

OK the puzzle contunies

reconnect battery but first check current draw as it sparks a little as I connect and disconnect.

doors open interior light (door0 on close door? no windows up

reconect battry lower windows a bit close doors, check current draw .4 amps.

reconnect battery check for fault codes with cob

Troubleshoot reports "no codes"

ignition is on so I press the start button

this it goes off

Soooo try again and foot on brake MAGIC it start and press button again it stops

ALL fixed working perfectly again.

TILL NEXT TIME

this car is a worry

Thanks again Martin for trying

Jeff

Its not over yet.....(the trying)

Take the battery out of the car (disconnect it) for 5 minutes and reboot the CAN bus.

I have had it disconnected all night as I had it on charge.

still had the same "no start" problem.

and why do the headlight come on and won't turn off

It's all a mystery

You should Water Spray those brakes..... :)

Two things I would do -

Replace battery just for the fun of it - stop any stray noise potentially on the CAN bus.

Secondly drop the Steering Lock and lubricate the firing pin

I know none of this makes any sense - but give it a go :)

You should Water Spray those brakes..... :)

Two things I would do -

Replace battery just for the fun of it - stop any stray noise potentially on the CAN bus.

Secondly drop the Steering Lock and lubricate the firing pin

I know none of this makes any sense - but give it a go :)

they sound like long shots to me

but I repect your experience with these cars

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Maybe they'll look to do a bunch of presales to help inject some cash fast for their financial issues...
    • Does it also misfire equally when revving?   Josh is very correct in what you should do. The coilpack harness wiring loom itself is a known problem due to its age and the number of heat cycles it has gone through. Throwing parts at a vehicle to diagnose the issue isn't a smart or good way to do it. Secondly, you may have a bad coil pack, you pop replacements in, they fix that issue, but messing with the harness breaks it, so the issue persists. So now you think "well it wasn't the coil packs" and have to continue chasing your tail, potentially swapping back in your shit coil packs and returning the good ones (yes, I've seen people do this because 'it wasn't the problem' and they want to save money). And suddenly, you've got two issues with the same symptoms...   Diagnose, don't use the spare parts shotgun.
    • Well the articals keep saying a Q50s (Skyline in Japan) with a new Manual gearbox. I like the talk about the new looks with the round tail lights. I hope they bring back the retro look like they did with the Z
    • Off the back of feedback we have decided to mix up this next Motorkhana at Avalon to have some targeted skills practice for beginners to advanced. Saturday 6th September 2025 8:30am Capped 26 entries Standard Entry Fee: $89 Members Entry Fee: $55 (SAU Victoria Only) Entries Close: Friday 5th February  Where: 55 beach road Avalon. https://maps.app.goo.gl/HNUE3EuNue3sJxh38 Entries: Limited to 26 entrants (Passengers allowed over the age of 14 with a signed disclaimer and same safety gear) Disclaimer: Download  Please electronically sign and email to [email protected] or print and hand in and Driver Sign In. To compete in this event you will require A valid  AASA General Speed licence or (Day license via the AASA Website for $50) MA Licenses are no longer accepted by AASA https://aasa.com.au/  A helmet, long sleeve clothing and a 1KG mounted fire extinguisher recommended (But not Mandatory). Further details within Supp Regs on the enty link. Entry Link > https://www.sauvic.com.au/entry/deca/20250906 You can bring and have a passenger in the car but they need to comply to the same safety and clothing as driver. Bring your car and get to battle others, win, lose or draw. I can guarantee you will have lots of fun. Any questions email [email protected] Entry List:
    • Wanna rewrite all of that in, say, 2 or 3 separate sentences, so that we can read it?
×
×
  • Create New...