My ABS warning light (i.e. the little yellow light) and the Large red exclamation came on yesterday at startup. The night had not been particularly cold but it had been fairly windy and wet i think.
I think it seems strange that the lights came on while the car was stationary.
These lights have been on before but this was about 3 months ago when the ECU failed. I did the DIY solder fix which has been fine ever since and havent seen any lights since then. I would have thought if my soldering had failed then it would be likely that the lights would come on while driving the car e.g. after going over a big bump and the wire disconnecting. So i think i can possibly rule this out.
Also i found that when you have a wheel sensor problem it tends to show up on teh dash only when you move away from stationary but my lights came on just when i turned hte key - before i had driven away.
I took it to hte local garage as i'm driving a long distance this weekend so thought i should check it out. They have diagnostics but said they couldnt get it to work with my car as they htink its too old (98 s reg a4 2.5 tdi quattro). This may be true but if it isnt then it also may indicate that the ecu is not communicating due to my soldering job failing? Although i forgot to ask if they were able ot communicate with other systems in the car.
The garage tested the voltage of all wheel sensors and found one was lower than the other 3 but because i hadnt driven before the lights came on i am sceptical as to whether this is the problem and don't want to lay out cash for a problem that doesnt exist!
I read somewhere on hte forum that the level sensors can go on a4s - i assume htis means the brake fluid level sensors?
Any suggestions or ways of finding out hte problem would be gratefully received!
I think it seems strange that the lights came on while the car was stationary.
These lights have been on before but this was about 3 months ago when the ECU failed. I did the DIY solder fix which has been fine ever since and havent seen any lights since then. I would have thought if my soldering had failed then it would be likely that the lights would come on while driving the car e.g. after going over a big bump and the wire disconnecting. So i think i can possibly rule this out.
Also i found that when you have a wheel sensor problem it tends to show up on teh dash only when you move away from stationary but my lights came on just when i turned hte key - before i had driven away.
I took it to hte local garage as i'm driving a long distance this weekend so thought i should check it out. They have diagnostics but said they couldnt get it to work with my car as they htink its too old (98 s reg a4 2.5 tdi quattro). This may be true but if it isnt then it also may indicate that the ecu is not communicating due to my soldering job failing? Although i forgot to ask if they were able ot communicate with other systems in the car.
The garage tested the voltage of all wheel sensors and found one was lower than the other 3 but because i hadnt driven before the lights came on i am sceptical as to whether this is the problem and don't want to lay out cash for a problem that doesnt exist!
I read somewhere on hte forum that the level sensors can go on a4s - i assume htis means the brake fluid level sensors?
Any suggestions or ways of finding out hte problem would be gratefully received!