Had some Codes pop up Today,,,
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Posting Guru
Joined: Jan 2003
Posts: 2,181
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From: Eastern CT.
Had some Codes pop up Today,,,
Leaving work today,,AC on,,truck running fine,,,Blip,,,on comes the "Engine" light in the Dash,,,then my Edge Insight Gauge setup start's changing colors and Blinking,,,Flashing "5 Diagnostic Codes", never did see that before, so my son grabs the Edge Insight, and does the Diagnostics to retrive the codes,,
Injector's #1 & #2 low voltage
C1501
P1555
C1555
B2:2
I have looked thru the Diag. Codes in the tech folder only found the P1555 code??
Anybody have any more info on these codes ??
The truck ran great the whole time,,,cleared the codes after,,,"Engine" light stayed off on my way home.,,,,Thanks,,,Mark
Injector's #1 & #2 low voltage
C1501
P1555
C1555
B2:2
I have looked thru the Diag. Codes in the tech folder only found the P1555 code??
Anybody have any more info on these codes ??
The truck ran great the whole time,,,cleared the codes after,,,"Engine" light stayed off on my way home.,,,,Thanks,,,Mark
Logistics Pro
Joined: Nov 2010
Posts: 3,673
Likes: 6
Check all connections to FICM including the ground.
Then test the FICM.
https://www.ford-trucks.com/forums/8...procedure.html
Then test the FICM.
https://www.ford-trucks.com/forums/8...procedure.html
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Man, I did some looking around and this was the only thing I could find. Now, is this a true Description of C1501?. I can't say.
C1501:
C1501 Transfer Case Contact Plate "C" Encoder Circuit Failure
C1501:
C1501 Transfer Case Contact Plate "C" Encoder Circuit Failure
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
AE lists P1555 as an injector circuit code for #5. C1501 is a transfer case code. The other 2 are listed as unknown. I would clear the codes and see if they return but with 3 low injector codes I'm suspecting FICM also. I have no knowledge what the transfer case code means but someone here will know.
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Posting Guru
Joined: Jan 2003
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From: Eastern CT.
OK guys thanks for the info,,,I did clear the codes with my Edge Insight,,,and all was well today,,,It threw a couple codes about 4-6 months ago too,,,was something about Injectors then,,,but the truck has run good,,,now and then when leaving in the am,,it has skipped and taken off slower,,,,I will do a FICM voltage check soon,,,looked at the tech article,,,plus found a video on youtube about it.
That C1501 code is strange,,,seeing as I have the manual Hubs and transfere case !! Not sure what that code would be about ??
That C1501 code is strange,,,seeing as I have the manual Hubs and transfere case !! Not sure what that code would be about ??
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Posting Guru
Joined: Jan 2003
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From: Eastern CT.
Ok guys checked the voltage, the voltage recorder with the key on was 46.2, the truck cranked over with 47.5 volts and held at 48.6 to 49.1, yesterday truck threw codes, #3 and #6 injector low. Whats the next step now. Thanks....mark
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Posting Guru
Joined: Jan 2003
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From: Eastern CT.
OK ,,so we did the ficm voltage check this am,,truck coolas indicated above(my son entered the info with his I-Pad),,with key on,,at first it was down to 20.5 volts or so,(Glow Plugs on ?),then jumped up to 46.2after a few seconds,,,tried cranking it,,(truck started) got 47.5 volts,,,then running up too, 48.6 to 49.1 volts,,so I take this as my FICM is still ok at this point,,,any thoughts ??
Now yesterday it through codes #3 & #6 Injector circut low,,,,cleared them using the Edge Insight,,,,after the truck sat 2-3 hours or so,,fired it up to go home,,,,the truck through 8 codes,,,,still running fine,,,here they are
P0261, #1 Injecter circut low
P0264, #2 Injector circut low
C1501, unkown
P1555, unkown
P1555, unkown
B2:2:: unkown
P1112, IAT circut Intermittent fault
P0055, (H02S) Heater Resistance (Bank 1 sensor 3),,,any thoughts on what may be going on here??
Seems to set off codes now when the truck has cooled off some, setting a couple hrs,,starting in the morning, and so on,,,thanks for any info,,,,Mark
Now yesterday it through codes #3 & #6 Injector circut low,,,,cleared them using the Edge Insight,,,,after the truck sat 2-3 hours or so,,fired it up to go home,,,,the truck through 8 codes,,,,still running fine,,,here they are
P0261, #1 Injecter circut low
P0264, #2 Injector circut low
C1501, unkown
P1555, unkown
P1555, unkown
B2:2:: unkown
P1112, IAT circut Intermittent fault
P0055, (H02S) Heater Resistance (Bank 1 sensor 3),,,any thoughts on what may be going on here??
Seems to set off codes now when the truck has cooled off some, setting a couple hrs,,starting in the morning, and so on,,,thanks for any info,,,,Mark
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FTE Legend
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From: Millersville, MD
Up in to READ ME FIRST posts are the instructions for how to pull the FICM and re-solder some connections..... try that and see if your voltages return to normal...esp at key on:engine off and :start.
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Lead Driver
Joined: Feb 2011
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From: L.A. (Lower Alabama)
Truck still runnin ok? I would clear codes and continue to monitor. Seems pretty random. 20v at the FICM may be a tell even it's only a couple seconds. Might point to a power (or ground) issue but I would think FICM is ok right now. Good luck! Sounds like this one could be a booger.
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Anything under 45V indicates a faulty FICM, especially with two low circuit codes. I would, however, have the batteries load tested (separated from each other) before I jumped to any conclusions. Also, check ALL your battery cable connections--battery, frame, block--and make sure they are clean and well connected. I'm attaching the TSB for the correct procedure to test the FICM.
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Posting Guru
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From: Eastern CT.
Yes the truck runs Good,,,a little slower in the am,,,but warm is like normal,,,No smoke, truck starts good,,No rough running lately,,,it has skipped some in the am,, twice on take off.
Now in the FICM Guide (Tech section),,,one guy mentions to remove the GPCM (Glow plug control Module) from the drivers side battery,,to reduce battery drain,,,,I did not do this,,,and was thinking this was possibly why it was at 20.5 volts for a few seconds when testing the FICM ?,,it went upto the 46.2 after the buzzing(glow plugs, maybe fuel pump) stopped.,Has anyone removed this GPCM before testing the FICM ??
Will check Batteries and Grounds out soon!!,,thanks for any info,,,,Mark
Now in the FICM Guide (Tech section),,,one guy mentions to remove the GPCM (Glow plug control Module) from the drivers side battery,,to reduce battery drain,,,,I did not do this,,,and was thinking this was possibly why it was at 20.5 volts for a few seconds when testing the FICM ?,,it went upto the 46.2 after the buzzing(glow plugs, maybe fuel pump) stopped.,Has anyone removed this GPCM before testing the FICM ??
Will check Batteries and Grounds out soon!!,,thanks for any info,,,,Mark
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Yes the truck runs Good,,,a little slower in the am,,,but warm is like normal,,,No smoke, truck starts good,,No rough running lately,,,it has skipped some in the am,, twice on take off.
Now in the FICM Guide (Tech section),,,one guy mentions to remove the GPCM (Glow plug control Module) from the drivers side battery,,to reduce battery drain,,,,I did not do this,,,and was thinking this was possibly why it was at 20.5 volts for a few seconds when testing the FICM ?,,it went upto the 46.2 after the buzzing(glow plugs, maybe fuel pump) stopped.,Has anyone removed this GPCM before testing the FICM ??
Will check Batteries and Grounds out soon!!,,thanks for any info,,,,Mark
Now in the FICM Guide (Tech section),,,one guy mentions to remove the GPCM (Glow plug control Module) from the drivers side battery,,to reduce battery drain,,,,I did not do this,,,and was thinking this was possibly why it was at 20.5 volts for a few seconds when testing the FICM ?,,it went upto the 46.2 after the buzzing(glow plugs, maybe fuel pump) stopped.,Has anyone removed this GPCM before testing the FICM ??
Will check Batteries and Grounds out soon!!,,thanks for any info,,,,Mark
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
Possibly. Since your in California with an 03 truck you'll get a CEL for things other trucks won't. It would be helpful to have the truck code scaned to make sure you haven't damaged critical components from running low voltage.