Ford F150 Speedometer problem... will only power on when gradually increase power.

[tunertool]

Ford F150 Speedometer problem... will only power on when gradually increase power.

I found that I have to give it exactly 8.5V to power on... anymore it wont power and any less and it just gives the ABS light and nothing else... but when I feed it 8.5v the whole dash comes on as it should and shows ------- as the mileage which is normal.

Any ideas what it can be?

I had this problem after programming the dashboard with ENIGMA... this is the second one that its done this on.

[autodigitec]

Tried calling enigma costumer support?

If this happened to you already twice, they must be aware of this.

[XmoDDeR]

voltage rectifier , diode fried????????????? check board components for faulty component. spoke to a friend he has done with enigma and no issues

[tunertool]

Support said no one else had issues either.

Something may have fried but how can I find it?

[XmoDDeR]

a good meter............

[tunertool]

I have a good meter.

[martij976]

What year ?
The regulator from12V to 5v faulty or one of the capacitors maybe? But why after reprog ?? Weird.

[tunertool]

It is very wierd... I will upload some pictures later if someone can point some components I should look at.