94 Q45 tcs/slip light relays problem

[apossiblehybrid]

So I've replaced the two relays with new ones as instructed in a thread about the tcs/slip relay for a 94 Q. The problem was solved for a couple weeks but then it goes back to throwing the tcs/slip lights and making the vibrating noise. This happens 90% of the time I'm using my car while the other 10% its normal. Can someone please help me out? Thanks.
Modified by apossiblehybrid at 4:20 PM 10/9/2009

[Diesel6]

im having the same problem and my car does not go more than 25 mph...it just start to shake and stays at 25mph...check engine soon, TCS and SLIP lights up all the time now.

whats should i do?

[apossiblehybrid]

Does anyone have any idea whats wrong?

[Infinitiguy19]

Why not look in the service manual your car came with from the factory?

http://Nicoclub.com/FSM

Put the car on a dyno to perfom below test procedure:

[apossiblehybrid]

i didnt find anything there and i dont have access to a dyno that's why.

[Infinitiguy19]

Depending on how much balls you got I would do this on a lift. Or someting that would require even more balls: Jacks.

The above picture is in the service manual.