On 15/06/2020 15:23:01, alan_m wrote:
On 15/06/2020 13:36, Fredxx wrote:
On 15/06/2020 12:13:27, alan_m wrote:
On 14/06/2020 20:48, Dave Liquorice wrote:
https://www.ebay.co.uk/itm/OBD2-Auto...Saver-OBD-12V-
Battery-Replace-Tool-Extended-Cable/292763616836?ssPageName=
STRK%3AMEBIDX%3AIT&_trksid=p2060353.m2749.l2649


Yes you definitely need one. If you remove the battery your car's
computer will delete all its programming and you will never be able
to start your car again without getting it back to the main dealer
for a repair costing maybe £1000!

Please name the car that does this. All that I have come across work
perfectly well after removing the battery. The major pain is resetting
the radio etc.

Woosh

No car does that's why you don't this piece of crap.

So remind us, what idiot said, "If you remove the battery your car's
computer will delete all its programming and you will never be able to
start your car again without getting it back to the main dealer for a
repair costing maybe £1000!" and now they can't provide the evidence to
backup their silly claim up.

All it does is apply whatever voltage you connect the leads to into the
power pins of the OBD socket to supply the ECU, and the rest of the car.
Its effectivly just two pieces of wire!


You are now powering your whole car through those two little pins on
the OBD connector. You will possible do more than £5 in damage if it
draws too much current.

That depends on the wiring, but while that may be a concern, the
current draw with everything turned off would normally be measured in mA.

If you believe otherwise provide the evidence.

If when removing the car's battery you accidentally short the +ve
battery lead to the chassis you will short circuit the supply you have
just connected to the OBD socket. I wonder what current will then
flow?down the car's internal wiring?

Then tell us, what will limit the current?