obd-II p1233

[yryr999]

Hi
when I start the car today I fell the engine is weak and I notice the check engine light is on so I check and I find the code ...
Any ideas please ...
the code is p1233 Fuel Pump Driver Module off-line
part number 3W1Z9D372AA

note : the car was parked for two weeks

[yryr999]

???????????

[MM2004]

I searched for P1233 and found this..

http://www.mercurymarauder.net/forums/showthread.php?t=44711&highlight=P1233

Let us know if this helps..

Mike.

[RacerX]

Unplug the harness/connector from the FPDM and replug it in. See if it's that simple.

[RF Overlord]

P1233 - Fuel System Disabled or Offline

Description:
The PCM monitors the fuel pump monitor (FPM) circuit from the fuel pump driver module (FPDM). With the key on, the FPDM continuously sends a duty cycle signal to the PCM through the FPM circuit. The test fails if the PCM stops receiving the duty cycle signal.

Possible causes:
-Inertia fuel shutoff (IFS) switch needs to be reset
-Open FPDM ground circuit
-Open or shorted FPM circuit
-Damaged IFS switch
-Damaged FPDM
-Damaged PCM
-Open FPDM PWR circuit
-Open B+ circuit to constant control relay module (CCRM) pin 11
-Open ground to CCRM pin 18
-Damaged CCRM

[SC Cheesehead]

P1233 - Fuel System Disabled or Offline

Description:
The PCM monitors the fuel pump monitor (FPM) circuit from the fuel pump driver module (FPDM). With the key on, the FPDM continuously sends a duty cycle signal to the PCM through the FPM circuit. The test fails if the PCM stops receiving the duty cycle signal.

Possible causes:
-Inertia fuel shutoff (IFS) switch needs to be reset
-Open FPDM ground circuit
-Open or shorted FPM circuit
-Damaged IFS switch
-Damaged FPDM
-Damaged PCM
-Open FPDM PWR circuit
-Open B+ circuit to constant control relay module (CCRM) pin 11
-Open ground to CCRM pin 18
-Damaged CCRM


#1 is an easy check, start there and then try RacerX's tip if that doesn't work.

vvvvvvv




Unplug the harness/connector from the FPDM and replug it in. See if it's that simple.

[Seneca]

I also had this code 1233 come up after changing filter. I forgot to cycle the key a few times. Hey guys couldnt the check valve in the Tank on the fuel pump assy. If defective bleed off the fuel. then when cranked throw this code?

[marauder305]

I know this is I old thread but I really can use you guys help my 2004 mercury marauder gave me this code along with a bunch of dash lights and a continuous sputter and shut off. So I wrecked my nerves and found that I had a loose ground cable connected to the body of the car. I disconnected the battery and tightened the wire that grounds to the car. Connected the battery back and it seems to be running ok but I am kinda nervous that it might leave me stuck on the side of the road. My question is can a loose ground cause this code to pop up??? Please help restore my faith in my marauder thank you

[Pat]

Fear is useless, have faith.

Just how loose was the wire? Wiggle loose? Corrosion can build up and cause a resistance between wire and point of contact with ensuing electrical problems.

It's fixed.

[marauder305]

Fear is useless, have faith.

Just how loose was the wire? Wiggle loose? Corrosion can build up and cause a resistance between wire and point of contact with ensuing electrical problems.

It's fixed.

It was wiggle loose. ..

[RacerX]

It was wiggle loose. ..
A loose ground wire can wreak havok with any part of the system that uses electricity.

[marauder305]

A loose ground wire can wreak havok with any part of the system that uses electricity.

Well so far today I haven'thad any sputters, stalls or dash lights hopefully this loose ground was the reason for the car to act up... I am still not comfortable with long distance driving but only time will tell... thanks marauder family