2002 ls fuel pump control module

[Bandit54]

Where is the location of the fuel pump control module on a 2002 ls

 

[joegr]

Where is the location of the fuel pump control module on a 2002 ls

The PCM tells the REM how much power to give to the fuel pump to keep the pressure in the desired range. There is no separate module. What problem are you having?

 

[Bandit54]

Thanks for the response. We have no power to the pump.the fuel pump relay works. We have no bad fuses.

 

[joegr]

You have no positive power or no negative power or both?

You should have +12V all the time the fuel pump should be on. The negative or ground is PWMed to whatever power level the PCM requests.

 

[04_Sport_LS]

"PWMed"

= Pulse Width Modulated.

Darn engineers always gotta use that fancy talk.

 

[04_Sport_LS]

Merry Christmas Joe

 

[Bandit54]

You have no positive power or no negative power or both?

You should have +12V all the time the fuel pump should be on. The negative or ground is PWMed to whatever power level the PCM requests.

After recheck, I have no power to the pump with key off both are to ground. With key on no power or ground.

 

[joegr]

After recheck, I have no power to the pump with key off both are to ground. With key on no power or ground.

You said the relay was working. Trace the connection from the relay to the fuel pump.

 

[Bandit54]

I have12 volt to the pump with key off other pin shows ground. With keys on no positive or ground

You said the relay was working. Trace the connection from the relay to the fuel pump.

I have continuity from the relay pin 5 location to the pump

 

[Bandit54]

I have continuity from the relay pin 5 location to the pump

Update with a jumper from pin location #1 which has power with key on to pin location #5 we have power to the pump.

We us messing around we have blown the 15 amp fuse . We replaced the fuse we now have power to th pump with key on.