Wheel rotation / impulse for stereo

[cgjones]

Hi, hopefully somebody can help. I have just replaced the original Pioneer KEH-P6600RS with a Pioneer ANH-P9R (with sat nav). I didn't access the ISO block as it is behind the dashboard somewhere. Instead, I cut and joined the relevant wires. However, I have just found out that the new stereo needs a wheel rotation sensor input for the sat-nav to work. Does anybody know whether one of the wires into the original KEH-P6600RS was right for this or if not, does anybody know where I can connect into the wheel impulse into the speedo?

Thanks in advance.

The car is a very early Tuscan, one of the first. It is the model where the window winders are also the door release buttons.

[cgjones]

Alternatively does anybody know where I could get hold of a wiring diagram for a 2000 Tuscan?

[cgjones]

Could anybody advise me the best specialist to contact to ask where to find the VSS wire (vehicle speed signal) on the Tuscan.

Thank you

[justinbaker]

Hello Colin,

It seems that the ISO block does not have the speed sensor wired in, I too have a SAT NAV unit fitted SONY MEX100NV, this also works much better with the speed sensor input, so I am also on the hunt for the cable to patch into.

You might struggle to find a wiring diagram, or anything engineering related to these cars.
My Tuscan is away at Austec at present for its first service, but when its back I should be able to hunt it down?

Is your car an S BTW, as the wiring is certainly different. I have a spare wiring loom in a box here to check it out while its out the car if it is.

[cgjones]

I know there is such a wire as another member has had the same head unit as mine patched into a wire in the speedo pod and it works just fine. I beleive it is the VSS wire, I just don't know where or what colour it is.

[justinbaker]

I think I remember it being a T350 and it was in the door jamb, (I might be wrong though). I will try a search when I get 5 mins.

[S3 CGJ]

I am still sturggling with this, I tried connecting to the grey wire on the window winder button as somebody suggested but only got an impulse when the window was being wound up or down.

Is there anywhere else anybody can suggest.

Thanks

[NCE 61]

Colin have you seen this Topic it describes the grey from the door closing circuit.

[S3 CGJ]

Yes, thank you I had seen it, that is why I tried the grey wire from the door opening button.

I will try to find the door opening modules that these connect to and see if there is another grey wire there

[S3 CGJ]

Woo Hoo, sorted it.

There are two door modules located in front of the gearstick beneath the central console. There are two grey wires going into each module. One grey wire is the signal from the window winder button. One pulse = one notch up or down.

The other grey wire is the speed sensor wire.

Just connect that to the sat nav and Bobs your Uncle.

Pheww, glad that is sorted

[justinbaker]

I cant find grey wires around there, but did your grey ones go to anything in particular so I can identify them?

[S3 CGJ]

There are two door modules just in front of the ashtray under the centre console. There is a large plug with about 20 wires that goes into each. You should see a grey wire going from the window winder knobs to each of these modules. This is not the wire, there is another wire the same colour. It is that one.

This is so that the door modules know that the car is moving and doesn't allow you to open the doors.

It's there somewhere. You may need a multi meter and a few test runs to find it if it's not grey though.