Tight Cornering Braking

[agxus]

Hi,
I am new on this site.
I am from Romania and own a 1992 AWD SVX.
I had problems with the transmission and recently I had the transmission rebuilt, but still the tight cornering braking is a problem.
When I start the ignition , the power light is blinking 16 times.
I read the possible reasons for this and I found:
1. Throttle position sensor ( is OK)
2. Duty solenoid C ( is working)
3. Speed sensor No 1, how do I check it?
Kindly asking anybody which can help me with an idea, to send me an advice.
Many thanks in advance and best regards,
George