ABS Light -- Already Replaced ABS Relays Without Success

[Pogophil]

Our J30's ABS light is on. We replaced the ABS relays, since it's a relatively cheap and easy fix (see link below), but that didn't solve the problem.

http://www.fuzzycats.com/docs/ABS_indicator.pdf

I recently bought an ABS module off ebay, but I'd prefer to play it smart. Any thoughts?

Thanks in advance!

[driverdriver]

If its not the relay, it could be either the module, sensor or wire.

Are you getting any codes?

[Pogophil]

No codes. How would I diagnose?

Are there any writeups on swapping the ABS module?

[braintreeauto]

Any idea where the ABS relays are located in a 2001 Infiniti I30? There is a plastic box with relays that has two listed on the lid but the plugs are empty (with no connectors). This is towards the front of the engine, anywhere else I should look?