5th Generation Maxima (2000-2003) Learn more about the 5th Generation Maxima, including the VQ30DE-K and VQ35DE engines.

Fuel Pump control module: where is it?

Thread Tools
 
Search this Thread
 
Old 09-26-2007, 12:59 PM
  #1  
Supporting Maxima.org Member
Thread Starter
 
Gle03Max's Avatar
 
Join Date: Dec 2006
Posts: 248
Fuel Pump control module: where is it?

I need to know where the fuel pump control module is on a 2000 maxima. otherwise known as the fpcm.
Gle03Max is offline  
Old 09-26-2007, 01:17 PM
  #2  
Member
 
justinny's Avatar
 
Join Date: Jan 2007
Location: LI NY
Posts: 78
the fuel pump is controlled by the fuel pump relay
the fuel pump relay is hot from the fuse panel
the relay is activated by the ecm providing a ground for it (through an internal transistor)
the fuel pump relay should be in one of the relay boxes in the engine bay
i dont see a module like you describe in wither a 99 or 2002 manual
both circuits seem to function identically (diff pins at ecm though)
justinny is offline  
Old 09-26-2007, 02:31 PM
  #3  
Supporting Maxima.org Member
Thread Starter
 
Gle03Max's Avatar
 
Join Date: Dec 2006
Posts: 248
Yea the ecm that u are talking about is the module I'm looking for. Called the FPCM
Gle03Max is offline  
Old 09-26-2007, 04:03 PM
  #4  
Member
 
justinny's Avatar
 
Join Date: Jan 2007
Location: LI NY
Posts: 78
Originally Posted by Gle03Max
Yea the ecm that u are talking about is the module I'm looking for. Called the FPCM
ecm is the computer for the whole engine
you might be thinkin of the fuel pump relay
justinny is offline  
Old 09-26-2007, 04:54 PM
  #5  
Supporting Maxima.org Member
Thread Starter
 
Gle03Max's Avatar
 
Join Date: Dec 2006
Posts: 248
No I'm talking bout a separate one not the ecm. The fcpm is another computer, like the trans computer.
Gle03Max is offline  
Old 09-26-2007, 06:29 PM
  #6  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
The "fcpm" module does NOT exist. The ECM controls the fuel pump relay as explained above. With the Ign. sw. ON the pump will operate for a couple of seconds or so only, OR when the ECM receives a signal from the Reference Crank Pos. Sensor indicating that the engine has started, the pump will run/continue to run.

Last edited by P. Samson; 09-26-2007 at 06:33 PM.
P. Samson is offline  
Old 09-28-2007, 08:30 PM
  #7  
Supporting Maxima.org Member
iTrader: (59)
 
nsnrider's Avatar
 
Join Date: Jun 2006
Location: Chicopee, MA
Posts: 2,785

Originally Posted by P. Samson
The "fcpm" module does NOT exist.
nsnrider is offline  
Old 09-30-2007, 06:38 AM
  #8  
Senior Member
iTrader: (1)
 
getbigtony's Avatar
 
Join Date: Nov 2005
Location: South Jersey
Posts: 950
lol @ the thread... the ECU controls the injector pulsing...
lololol.... control module = power to fuel pump
getbigtony is offline  
Old 10-05-2007, 09:11 PM
  #9  
Senior Member
iTrader: (7)
 
made in china's Avatar
 
Join Date: Mar 2007
Posts: 619
Originally Posted by Gle03Max
I need to know where the fuel pump control module is on a 2000 maxima. otherwise known as the fpcm.
On my A32, the FPCM is located in the trunk behind the left tail light.

In the A32 The FPCM controls the fuel flow, basically it is a voltage amplifier to the fuel pump, and it is controlled by the ECU. A32 ECU's have a Fuel Pump Relay (FPR) output AND a FPCM (FPC) output.

This does not mean that your 2000 has a FPCM.

Last edited by made in china; 10-06-2007 at 12:29 PM.
made in china is offline  
Old 10-05-2007, 10:36 PM
  #10  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
made in china...........I don't know what manuals you're looking at, but I've just gone through the 2000 & 2001 and 2002 manuals and there is no FPCM, at least I can't find it. The fuel pump motor gets full battery voltage via the Ignition Relay (when the ignition switch is in On or Start) and the ECM controlled Fuel Pump Relay if the ECM gets an engine run signal from the Crank Pos. ref. Sensor. The ECM I believe must have the pump run time circuit that only allows the fuel pump to run 2 or 3 secs. if the ECM does not get the start/run signal. I looked through the electrical component location diagrams, the wiring schematics and the harness connector diagrams. No FPCM. The only additional component in the fuel pump motor circuit is a condenser. If you are going by a Haynes Manual, it's not reliable for the Gen. 5 cars.

Last edited by P. Samson; 10-05-2007 at 10:40 PM.
P. Samson is offline  
Old 10-06-2007, 12:27 PM
  #11  
Senior Member
iTrader: (7)
 
made in china's Avatar
 
Join Date: Mar 2007
Posts: 619
Originally Posted by P. Samson
made in china...........I don't know what manuals you're looking at, but I've just gone through the 2000 & 2001 and 2002 manuals and there is no FPCM, at least I can't find it. The fuel pump motor gets full battery voltage via the Ignition Relay (when the ignition switch is in On or Start) and the ECM controlled Fuel Pump Relay if the ECM gets an engine run signal from the Crank Pos. ref. Sensor. The ECM I believe must have the pump run time circuit that only allows the fuel pump to run 2 or 3 secs. if the ECM does not get the start/run signal. I looked through the electrical component location diagrams, the wiring schematics and the harness connector diagrams. No FPCM. The only additional component in the fuel pump motor circuit is a condenser. If you are going by a Haynes Manual, it's not reliable for the Gen. 5 cars.
yes you are right, I stand corrected. Just checked Nissan FSM for 2000 max and there is no FPCM.I knew the 5.5 did not have them. I'll edit my post
made in china is offline  
Old 12-26-2010, 05:29 PM
  #12  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
I know this thread is over 3 years old, but does anyone know where the fuel pump relay is located on a 2001 SE 20th anniversary? I'm having starting issues which I THINK I've narrowed down to a failing fuel pump, but I don't want to just start throwing parts on the car.

Basically, sometimes the car would start and sometimes it wouldn't. I had 2 instances where the car stalled out while driving. Now, the car won't start at all and I don't hear the hum of the fuel pump upon starting. I have a good battery and starter.

Either the pump is bad, or the pump isn't getting the signal to send the fuel.

Someone please help!
Coodawg is offline  
Old 12-26-2010, 06:20 PM
  #13  
Senior Member
iTrader: (6)
 
luvlexus101's Avatar
 
Join Date: Mar 2010
Location: Queens Village, NY
Posts: 1,419
Originally Posted by Coodawg
I know this thread is over 3 years old, but does anyone know where the fuel pump relay is located on a 2001 SE 20th anniversary? I'm having starting issues which I THINK I've narrowed down to a failing fuel pump, but I don't want to just start throwing parts on the car.

Basically, sometimes the car would start and sometimes it wouldn't. I had 2 instances where the car stalled out while driving. Now, the car won't start at all and I don't hear the hum of the fuel pump upon starting. I have a good battery and starter.

Either the pump is bad, or the pump isn't getting the signal to send the fuel.

Someone please help!
behind driver kick panel
luvlexus101 is offline  
Old 12-26-2010, 06:30 PM
  #14  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
I looked there. Is it behind something else? There are no relays showing at all from just removing the panel. There is a metal plate with an ABS control module sticker on it. Does that have to come off also?

Thanks
Coodawg is offline  
Old 12-26-2010, 08:20 PM
  #15  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
There are two relays together somewhat below the ABS control unit. The fuel pump relay is the one just aft of the other one (according to the FSM drawing).
P. Samson is offline  
Old 12-26-2010, 08:37 PM
  #16  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
On a sidenote on this thread.........over three years ago the OP was asking where the Fuel Pump Control Module (FPCM) was on his 2000 Maxi. I checked the FSMs that I had at that time and I could not locate a FPCM as I stated above. Not long after that, I located another FSM copy which was titled "2000.5". That 2000.5 FSM (must be for cars assembled after about Sept. '99 because mine was built in Sept/99.......it has this FPCM in the trunk) does refer to the FPCM (and a dropping resistor) which controls ("high" and "low") voltage to the fuel pump. I believe I covered this in another thread quite awhile ago. These "late" 2000 cars are the only ones that appear to use/have a FPCM. I did eat crow by the way.
P. Samson is offline  
Old 12-26-2010, 10:07 PM
  #17  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
Thanks guys, I really appreciate the help. Considering I'm in blizzard conditions here, I won't really get to try swapping anything out for a day or two.
Coodawg is offline  
Old 12-27-2010, 01:57 PM
  #18  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
OK, I removed the kick panel, and even moved that corner of the carpet and I don't see any relays anywhere. Does that metal box labeled 'ABS control unit' also need to be removed? Is there a chance that they put the relay in different locations on the same model vehicle?
Coodawg is offline  
Old 12-27-2010, 03:49 PM
  #19  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
Those two relays one of which is the FP relay do look like they could be somewhat covered up by/behind the ABS/TCS control unit, so maybe you'll have to move it aside to access the relay. The relays appear to be located at that location on all Gen. 5 and 5.5 cars.
P. Samson is offline  
Old 12-29-2010, 11:42 AM
  #20  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
I took everything apart, moved the ABS control unit, removed the lower dash panel to see if it's up above the fuse panel somewhere. Nothing. I even checked the trunk where the relay is on the older max's. Again, nothing. I'm beginning to think it doesn't exist on this car...
Coodawg is offline  
Old 12-29-2010, 12:56 PM
  #21  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
It suddenly hit me.........it's in front of the firewall, and I should have twigged on the ABS control unit since it's in the engine compartment (duh). Look outboard/around/under the ABS control unit (left side of the engine compartment just in front of the firewall).

Last edited by P. Samson; 12-29-2010 at 01:00 PM.
P. Samson is offline  
Old 12-29-2010, 01:03 PM
  #22  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
The ABS unit I'm talking about is behind the driver's kick panel, not in the engine bay. It's a computer, not a mechanical part. I will check there anyway though.
Coodawg is offline  
Old 12-29-2010, 01:07 PM
  #23  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
Cancel the previous.......I'm mixing up the ABS actuator unit with the ABS/TCS unit, which is under the dash. I now can't figure out why you can't find those two relays including the FP relay.
P. Samson is offline  
Old 12-29-2010, 01:09 PM
  #24  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
You and me both, man! But I really appreciate the help. Do you know what color it's supposed to be?
Coodawg is offline  
Old 12-29-2010, 01:20 PM
  #25  
Senior Member
 
P. Samson's Avatar
 
Join Date: May 2004
Location: Vancouver, BC
Posts: 933
There's a pretty good drawing in the EL section of the FSM that shows them at what appears to be at a cutout (maybe just inside this cutout opening) in the sheetmetal, inside the kick panel, and at about the same height as the lower door hinge. It shows a large wiring bundle running upwards just in front of this fairly large cutout. Relay should be blue.

Last edited by P. Samson; 12-29-2010 at 01:35 PM.
P. Samson is offline  
Old 12-29-2010, 02:01 PM
  #26  
Member
 
Coodawg's Avatar
 
Join Date: Mar 2006
Posts: 30
Found it! That was the problem as well, thank god. Both of those relays are attached to a bracket that basically holds them inside the metal frame of the body. I didn't even know they were there until i took the 2 screws holding the bracket out, and pulled the metal out. That bracket was also covered by that extremely sticky, black insulation material.

Thank you so much for your help!!!
Coodawg is offline  
Old 11-30-2013, 05:59 PM
  #27  
Newbie - Just Registered
 
june4112010's Avatar
 
Join Date: Nov 2013
Posts: 3
Actually the Fuel Pump Control Module is located in the trunk on the driver's side. It's below the fuel lid opener actuator. According to a picture that I've seen on ALLDATA. Now, if it's actually there? I have no idea. But the program does show it has an FPCM and no it's not the ECM.
june4112010 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Miket2006
6th Generation Maxima (2004-2008)
4
03-01-2021 03:55 AM
My Coffee
New Member Introductions
15
06-06-2017 02:01 PM
BkGreen97
Maximas for Sale / Wanted
2
04-02-2016 05:47 AM
msellas
4th Generation Maxima (1995-1999)
2
09-23-2015 09:16 PM
bumpypickle
4th Generation Maxima (1995-1999)
10
09-20-2015 08:22 AM



Quick Reply: Fuel Pump control module: where is it?



All times are GMT -7. The time now is 03:59 PM.