Magnum wont start battery works

apparently there is a battery disconnect button that needs pressing.

Engine wont start after battery ***** - Tech corner - Forum

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Jun 9, 2016 - Hi guys! my 2007 v8 vantage wont start, the battery went flat and even when charged wouldnt start so i swapped the battery over for a new .


https://www.google.com/search?q=2008+Aston+Martin+V8+Vantage+won%27t+start+after+battery+disconnect

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hello ,
wont crank or cranks fast but wont start.? (2 different answers)
you must tell the helper all things that work or dont work
that is how electrics function, by branches .
1: head lights work high and low beams. ( dim or dead?)
2; heater fan work on high?
3: radio.
4: cluster glows those warning lamps as all do key on (y/n)
5;cranks
6: interior lamps dead, my guess you mean the dome lamps.?
try to be more clear as to which of the many lamps inside are dead.
7: if its a no crank, car, say so, and check for green battery lugs
we clean them , if not corroded ,then we next jump start the car
using jumper cables, per instructions on the box.

is car automatic trans?
if yes and wont crank try cranking in Neutral not park.
step on brake /and key on, and shift to N.
then crank.

Starter fluid won't work if the starter won't turn the engine over.

Get the battery load tested...it may not have enough juice to start the truck but have enough to light up the lights

check your fuses and battery connections at the starter. Is the anti theft light flashing? If it is that's your problem. Wait 10 minutes insert the key...wait for the theft light to go out before trying to start.

if that doesn't work you will need to get the starter checked...which means you will have to take it off.

With all those dull lights, you either have a bad battery - does the engine crank up OK? - or a bad earth connection.
For a quick test, connect a length of electric wire to the negative terminal of the battery, the other end to a bare metal part of the body while the blinkers are on. Does this make a difference? If yes, check all the earth lines, especially from the battery to the engine and to the body.
Calling your truck a ute sounds like you're in Oz, where you guys usually ride the utes on those gravel roads till they drop dead!

wont crank
or
wont start.? (but cranks robustly)
fuse warning? no , we check fuse, we never pray the PCM /BCM
will never warn us, because"they dont check them all"
why not post the full symptoms.????
I key on, what happens?, do the warning lamps all glow like the operators manual says? (NO?, fuse blown , fact !)
CEL glows (check engine light glow, ) if CEL is dead so is PCM. (fuse again.)
Do the head lights work , key off (fix that first) ( no? fuse or battery dead)
when you turn the key to start, does the starter motor crank fast?
if not fix that first. (wiggle shifter or try , neutral starts)
if yes crankes, then check for spark.? (google that.)_
if it dont start, i hook up my scan tool ($200 tool) that sees all Jeep codes (key fact that) and then crank for 5 seconds, amazing, it can
tell me, why the ASD dropped out. Sure can.
if the IMMO lamp sticks on, bingo, it will never run.

here is a good ASD page

http://www.fixkick.com/Jeeps/ASD.html

Even though all your other electrical bits are working it could be that your battery doesn't have enough juice to crank the engine. It doesn't take much power to run the radio, lights, etc, but cranking the engine requires the battery to have a very strong charge. If your battery is more than 5 years old, that's very likely the issue. I'd start there. Also, be sure to check the battery terminals and ground for corrosion and clean if necessary. If replacing the battery doesn't solve the problem it could be the starter solenoid or a loose electrical connection somewhere.

Sounds like the engine is toast.
The warning light means the oil pressure has dropped below 10psi which can mean the engine is low on oil, or that something has happened to the oil pump or other components.
The crank bearings may be seized from lack of oil.
See if you can turn the crank by turning the alternator pulley.

what are the codes coming up

Could be the security system or the neutral safety switch.
see the no crank section at the link below.
Do It Yourself Diagnosis and Repair

need to replace your battery and like you have a dead cell in your battery.