Err SS and ABS light, but I hear a clicking noise... speed s

[EDV11]

I recently bought a 2004 (my2005) Legacy 2.5i wagon. It had the light on since I got it.

When I start the car, ABS light go off after I start driving. If I move slowly below 50km/h, I can hear a clicking noise that goes with the speed of the car (if I accelerate, it goes faster, if I brake it slow down). It sounds like a relay. Once I reach about 50km/h, the ABS light comes on and the Er SS shows in the screen.

The DTC read is C105, which is rear right speed sensor.

I have took it apart to check cables and connectors, and everything looked fine.

So here are my coupe questions...

1.- Is it normal to hear that relay clicking when a speed sensor fails? Could the SS be fine, and the problem to be somwhere else?

2.- The EU part number for this speed sensor is 27540AG040. The quotation I got in Spain is 190€ plus TAX (that's around $280). The part number for that sensor in the US is 27540AG04A and I found it online for $39. Is there any reason why the US part will not work with my EU spec car? I post some pictures of it to clarify...

http://i235.photobucket.com/albums/ee103/edumg/abs1.jpg

http://i235.photobucket.com/albums/ee103/edumg/abs2.jpg

http://i235.photobucket.com/albums/ee103/edumg/abs3.jpg


Thanks!

[Huffer]

Great pics, and welcome to SL-i...

As for your problem the two conditions may be unrelated. Clicking sounds around the wheel are unlikely to be relays, but are more likely to be mechanical like a brake dust shield catching.

As for the replacement speed sensor - remember that US cars are LHD, not sure what Spain is - this might affect which part is which as some of the sensors and harnesses are shorter/longer depending LHD/RHD configuration.

I imagine that the sensors are interchangeable...maybe a quick email to the vendor to compare pictures would help?

[EDV11]

Thanks for your answer, and for your welcome!

The clicking sounds are not around the wheel, they are inside the car, and they are not mechanichal.

Spain is LHD.

[Huffer]

^^ good to know. Sounds like you have the diagnosis pinned down - I'm assuming the clicking sound is gone now that the speed sensor is disconnected?