Viscomatic FLT read out to diagnose 4x4 error light

[Cavallino]

So I finally hooked up the FLT to my Viscomatic ECU to diagnose my 4x4 error light.
FLT:
“Signal of steering angle:
Caused by :
Signal too weak”
On FLT, steering angle sensor reads constant “-128” with steering wheel straight or turned in any direction.

[Alfan]

One step further

I think you can both read out voltage and percentage of the steering angle. I assume you have been able to erase the code and find if it comes back after a restart.

You can read some more here:
http://www.alfaromeo164register.com/vie ... f=2&t=1408

[Cavallino]

Hooked up the FLT again after locating the steering angle sensor. The plastic piece is a little brittle but in one solid piece, so I didn’t want to remove it. I did turn it however, but the values on the FLT remain the same. After removing the entire sensor for further inspection, one of the wires (yellow) is a bit frayed. Could this be the culprit? Where would I source a new sensor?

[Alfan]

So it seems to be an electrical problem. I don't know if they are easy to find, but you should look up the part number for it. The same part was used for some Lancias.

You chould try and measure, if you have continuity through the wires, maybe it can be fixed.

[finalfa]

The part number for the steering angle sensor is 60568856.
The sensor has three cables. One for ground, one for constant 5V and one for signal.

[Cavallino]

So it seems to be an electrical problem. I don't know if they are easy to find, but you should look up the part number for it. The same part was used for some Lancias.

You chould try and measure, if you have continuity through the wires, maybe it can be fixed.

Do you know what each wire should measure?

[Cavallino]

The part number for the steering angle sensor is 60568856.
The sensor has three cables. One for ground, one for constant 5V and one for signal.

Thank you

[Alfan]

So it seems to be an electrical problem. I don't know if they are easy to find, but you should look up the part number for it. The same part was used for some Lancias.

You chould try and measure, if you have continuity through the wires, maybe it can be fixed.

Do you know what each wire should measure?

Continuity is just measuring the resistance in the wire, so if connection is not broken, you should get ~0 resistance. It is also worth cross checking the wires, so they don't touch each other (metal to metal). Your mechanic should be able to help with this.

If you disconnect the unit from the steering rack, you can turn the part that goes into the plastic part. You should be able to measure a voltage change, if it works.

[Cavallino]

So it seems to be an electrical problem. I don't know if they are easy to find, but you should look up the part number for it. The same part was used for some Lancias.

You chould try and measure, if you have continuity through the wires, maybe it can be fixed.

Do you know what each wire should measure?

Continuity is just measuring the resistance in the wire, so if connection is not broken, you should get ~0 resistance. It is also worth cross checking the wires, so they don't touch each other (metal to metal). Your mechanic should be able to help with this.

If you disconnect the unit from the steering rack, you can turn the part that goes into the plastic part. You should be able to measure a voltage change, if it works.

Yes, my mechanic did turn it, 360 degrees also to "reset" it. I'm almost positive I need a new sensor.
I can't seem to find one ANYWHERE. I am hoping Ed can help me.

[Alfan]

It might be worth to see, if the old unit can be repaired. I don't recall having heard of anyone trying, though...

[Cavallino]

It might be worth to see, if the old unit can be repaired. I don't recall having heard of anyone trying, though...

Doesn't seem like it.

If anyone knows of one for sale, please let me know.

[Alfan]

Not cheap...
https://www.ricambinuovi.com/store/_it/ ... 8856/10350

You can try and ask here https://www.alfabb.com/forums/164-168-1991-1995.16/ if anyone has a spare one.

[Cavallino]

Not cheap...
https://www.ricambinuovi.com/store/_it/ ... 8856/10350

You can try and ask here https://www.alfabb.com/forums/164-168-1991-1995.16/ if anyone has a spare one.

yes, I saw that site. they still have it listed, but unfortunately if you look closely in italian it says "non disponibile" and in english "no longer available" or "out of stock". also, I've been on alfabb for years, but the largest number of Q4-specific knowledge and owners are definitely on this site.
thank you for your continued help.
I just received one from Ed, he is the best. will update everyone once installed.