*TCS Pump/Actuator ISSUES? Slip/TCS lights, BUZZING, HELP!!

[jsinatra]

Ok, here we go...1994 Infiniti Q45, 150k, OEM replaced everything basically...sensors/plugs/ignition coils/etc/etc...3rd Q45...

I've had this problem before, but was fixed for about a year, and it has started again. Basically, the TCS/Slip lights are on, the first time i bought the two blue relays that go under the battery and the problem was fixed. Now for some reason the problem is back, and the lights drive me crazy!

I'm getting ready to count the LED lights on the control module, but i'm guessing it'll be 18...abnormal tcs oil pressure...but this is what i can tell you and hopefully it's common or has been discussed previously...When i start the car, i can hear the TCS actuator or the TCS Pump "buzzing" for about a second each time, and it buzzes about 6-10 times, when the buzzing stops, the TCS/Slip lights come on at the same time....sometimes though, the lights won't come on for about 5 minutes...either way the "buzzing" definitely means something!

Thanks for your help ahead of time.

[goody90q45]

Is the buzzing coming from one of the relays under the battery or the ABS relay inside the black box located in front of the ABS module?

[jsinatra]

I'll check to see if it's coming from one of the relays under the battery, although they've been replaced....it was a year ago and the lights eventually went out...could it be the relays have already gone out again???? i know for sure it's not coming from the ABS module or that relay, it's almost like its the actuator itself buzzing...it's definitely in that battery/passenger front wheel well area....