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        General >> Problems >> Autobox problem
        
(Message started by: Highlander on Nov 30^th, 2005, 5:54pm)

Title: Autobox problem
Post by Highlander on Nov 30^th, 2005, 5:54pm

Is it possible to temporarily bypass the wiring to allow an auto stuck in Drive with a broken selector to be started just to get it moved??

Not safe i know but would be helpful if it could be done.

Title: Re: Autobox problem
Post by howiedintheplace on Nov 30^th, 2005, 6:32pm

Never tried it but the way I understand it is
the transmission position sensor sends a signal to pin 64 on the EEC & also there is a contact on the selector.
I think if you fool the selector contact it will start but I am not sure.
Worth a try as it is easy to get to.
Do you know where I mean?

Title: Re: Autobox problem
Post by mr._floppy on Nov 30^th, 2005, 6:35pm

You could try removing or bypassing Relay 11 , drivers side fusebox ( yellow ).

Title: Re: Autobox problem
Post by Highlander on Nov 30^th, 2005, 7:31pm

Removing the relay will prevent starting in any selector position. and its a b****r to get at :)

The multiplug under the selector Dave?
or the sensor on the box?
I see two wires for Park on the selector multiplug on the site but none for Neutral suggesting it gets a signal for one or both from somewhere else too (the box?)
will give it a try tomorrow :)

Cheers all ;D

Title: Re: Autobox problem
Post by howiedintheplace on Nov 30^th, 2005, 7:47pm

Yeah you got it, the switch is at the front, right where the P is just under the plastic cover, have a play with that ;D
On a MK3 that's all you have to do but the Scorpio is a bit more complex, so not 100%

Title: Re: Autobox problem
Post by howiedintheplace on Nov 30^th, 2005, 7:50pm

Forgot to say it's a circuit connection so off/on if you get my drift?

Title: Re: Autobox problem
Post by Highlander on Dec 2^nd, 2005, 4:57pm

Ok tried it today, with the selector linkage disconnected then moving the selector in and out different gear settings makes no difference to whether the car starts or not (with the multiplug connected), only Park has an actual wiring connection.
Moving the link arm on the box does, so the start inhibitor must take its signal from the actual gearbox itself

Hope thats useful to someone else :)

Title: Re: Autobox problem
Post by howiedintheplace on Dec 2^nd, 2005, 7:06pm

Yeah just had a look for you.
You need to earth pin 64 on the ECU.

The feed to that does indeed come from the position sensor on the gearbox, goes through the engine loom, into the main loom & then pin 64 on the ECU.
Yellow/black.