2004 Nissan Maxima ABS pump keeps running when ignition is off

Just wondering why the alternator and fuel pump have been replaced ... seems expensive if they were not at fault, which they clearly didn't fix your issue.
Have you a spark at the plugs?
Does it fire up with brake cleaner/ether in the air intake? if it does, you have spark.
Got any pulses going to the ignition coils ...
Does the fuel pump work for a few seconds when you turn the ignition just before the engine cranks ...
Fault codes were what ...

I Have An 2002 maxima an it does the same thing.go to the fuse box drive side under the hood look for abs 40 fuse pull out with hand that should fix it

It's inside the ABS pump module assembly. It inside the hermetically sealed black plastic case attached tot he ABS pump module. There is no repairing it. The ABS pump module must be replaced. The part costs $1200. Sorry.

the pump relay contacts are stuck together.unfortunately they are integral to the controller/actuator unit.$$$$$$$$$.you could try tapping on unit with small hammer to see if the vibration will separate them.

This sounds like you need new brake pads or:

Abs is not working properly, is there a check engine or abs light?

It is simple to do your brakes and rotors........

If the ABS light is on, it's a good idea to find out what codes are stored.

The OBD-II system allows many codes to be read but a specialist with an ABS BrakeScan tool will be needed in order to find the codes for the ABS system for your vehicle.

I bought a Brakescan tool that works on most Ford, Chrysler, and GM vehicles from 1996 through 2005 but, I don't think it will work with the Nissan Maxima.

So, that's why I would direct you to the dealer for this one.

you need to run a scan to see what is wrong. it could be a wheel sensor or the abs pump. This is a realatively new vehicle and i would think something is blocking a wheel sensor from reporting info to the computer. some times things build up around the sensor and block it. or if there has been a recent accident one could be damaged and the shop didn't catch it. these parts really dont fail this quick look for something else. remove the wheels and look for a ring with a lot of teeth on the back side of the assembly. follow an electrical wire it will take you to the sensor which will be next to a ring with many teeth. The sensor recognizes the teeth moving and reports to the computer when they stop moving and that is when the abs starts pulsing the brakes for that wheel. if something gets in the way the sensor sees nothing and the light comes on. if this helps please reply cause that helps me keep answering here and good luck

hi from uk the only thing i would be concerned about at this moment is the grinding when brakes applied ? this sounds very much like your brake pads are very low and most likely worne to the point of damage(grinding metal to rotor contact) is the sound you hear also the abs will sense this and due to unbalance of braking to each wheel abs will operate however i would have thought your car may have low pads warning indicator light system fitted but may not ? may i suggest considering age and possible high milage of your car ? if you have not had pads inspected recently? you do so asap b4 you drive any distance especially at speed ?

I HAD ALMOST THE SAME PROBLEM .THIS CAR HAVE WAT SHOULD BE A RECALL WITH THE ABS SENSORS AT THE WHEEL .WHICH RUST BUIILDS ON THE SPINDLE AND THE BREAK THE SENSORS ..I END UP REPLACING THE BACK SENSORS AND THE SPINDLES .PLUS I WAITED SO LONG THAT THE ABS PUMP ALSO NEEDED REPLACEMENT ..GOT EXPENCIVE EVEN WITH DEALER EMPLOYEE DISCOUNT .I SPENT 1500 DOLLARS

i have a 2004 maxima and overnight my battery seems to drain out my car dont start i have to my battery is brand new and i leave no lights on is there a solution for this ???????