VDO Speed Sensor 412.009

bnicho Wolfsburg Wizard

436 posts · joined Feb 2009 · 30 Sep 2010, 7:12 pm

#805034

Hi,

Ive got a VDO Cockpit Vision speedometer and a VDO 412.009 speed sensor. I'm trying to make the two talk to each other but having no luck!

As these VDO speedos seem to be used quite often in VW's and the sensors seem to be the part of choice for Subaru conversions, I figure someone on here must know how to connect them.

The sensor has a Blue/Red Trace wire, a Black wire and a Brown wire.

If I connect black to 12v (or terminal 2 on the guage) Blue/Red to earth (bridged of terminal 3) I can see a 4v-0-4v signal on the brown wire with a multimeter. Yet if I connect terminals 6 and 8 to the brown wire the speedo sits there stupid.

Any other combination of connections produces no signal out of the speed sensor at all.

Some advice would be appreciated. 🙂

Thanks,

Brett Nicholson
Melbourne, Victoria
1974 VW Superbug L - Olive 😎
1971 Morris Mini Moke - Mopoke
1966 Austin Mini - Audrey
1965 Morris Mini Traveller - Trixie
2007 Land Rover Freelander 2
2009 Nissan Pathfinder

vlad01 Compulsive Aussie Vee Dubber

4,270 posts · joined Jun 2010 · 30 Sep 2010, 7:23 pm

#805035

don't blindly connect wires. you could easy cook the sensor. read the instructions that came with it.

71 notchback,
Past owner of, 70 NB, 73 SB and 72 FB TLE

57oval Officially Full-On Dubber

305 posts · joined Oct 2006 · 30 Sep 2010, 7:33 pm

#805037

bnicho wrote:Hi,

Ive got a VDO Cockpit Vision speedometer and a VDO 412.009 speed sensor. I'm trying to make the two talk to each other but having no luck!

As these VDO speedos seem to be used quite often in VW's and the sensors seem to be the part of choice for Subaru conversions, I figure someone on here must know how to connect them.

The sensor has a Blue/Red Trace wire, a Black wire and a Brown wire.

If I connect black to 12v (or terminal 2 on the guage) Blue/Red to earth (bridged of terminal 3) I can see a 4v-0-4v signal on the brown wire with a multimeter. Yet if I connect terminals 6 and 8 to the brown wire the speedo sits there stupid.

Any other combination of connections produces no signal out of the speed sensor at all.

Some advice would be appreciated. 🙂

Thanks,

Brown is be earth
Black---ignition
Blue/red---- pulsed output

bnicho Wolfsburg Wizard

436 posts · joined Feb 2009 · 30 Sep 2010, 9:35 pm

#805064

57oval wrote:Brown is be earth
Black---ignition
Blue/red---- pulsed output

Thanks. 🙂

It came from eBay without instructions. The same part without the adaptor bits. It's used in some crap Chevy van as an OEM part. The seller had dozens of them, but apparently no idea how they should be wired. 🤪

Link to eBay

Cheers,

Brett Nicholson
Melbourne, Victoria
1974 VW Superbug L - Olive 😎
1971 Morris Mini Moke - Mopoke
1966 Austin Mini - Audrey
1965 Morris Mini Traveller - Trixie
2007 Land Rover Freelander 2
2009 Nissan Pathfinder

cam070 Custom Title Time!

1,332 posts · joined Jul 2009 · 30 Sep 2010, 11:26 pm

#805085

Is it the Hall effect sensor that needs to be grafted into the speedo drive cable? If so I think I have a manual around somewhere in the garage. I'll try and find it tomorrow for ya.

cam070 Custom Title Time!

1,332 posts · joined Jul 2009 · 30 Sep 2010, 11:48 pm

#805089

OK it got the better of me, I ventured out to the garage and found the speed sensor and the manual says:

Blue - v-signal
Brown - -31 ground
Black - +15

Hope that makes sense. If you need it I can probably scan the manual for you if you let me know your e-mail

bnicho Wolfsburg Wizard

436 posts · joined Feb 2009 · 1 Oct 2010, 12:50 pm

#805148

Thanks, makes sense. I will give it a try over the weekend.

Cheers,

Brett Nicholson
Melbourne, Victoria
1974 VW Superbug L - Olive 😎
1971 Morris Mini Moke - Mopoke
1966 Austin Mini - Audrey
1965 Morris Mini Traveller - Trixie
2007 Land Rover Freelander 2
2009 Nissan Pathfinder