No power to FICM . . . occasionally - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 05-01-2011, 09:20 AM Thread Starter
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No power to FICM . . . occasionally

I've had a few no starts lately. Each time, I can cycle the key (sometimes twice) and it will fire right up. Each time this happens, I get a P0611 and a P1378.

I've got an edge insight with the latest software in it so I can see FICM voltage and HPOP. I've now been allowing the insight to fully boot prior to starting the truck so that I can better see what's going on. HPOP builds very quickly; I have little concern there.

The FICM voltage on my truck has always been 48 or 48.5V; never showed a decrease. However, on some of my recent starts, I've noticed that the FICM voltage displayed on the Insight is 1.0 or 1.5v prior to cranking. Obviously, it won't fire up like that. I then cycle the key and I see a full 48V prior to cranking and it starts immediately.

It is my belief that the displayed 1.0 or 1.5v on the insight is really a measurement error and that the real voltage is zero. I believe that the FICM relay is not closing, therefore providing no voltage to wake up the FICM. This would also explain the P0611 & P1378 codes since the FICM is seeing low (or no) voltage during an attempted start.

The truck is a stock 05.

Thoughts or ideas?

Hemicbx
York, PA

2005 F350 CCLB Dually 4x4 Lariat 6.0L

Fixes:
Coolant flushed & DieselSite coolant filter
Blue spring
New OC & STC upgrade
Turbo lube tubes upgraded
Insight CS
BPD EGR Cooler
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post #2 of 6 Old 05-15-2011, 05:45 PM Thread Starter
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I wanted to come back around and close the loop on this one. I did put a new FICM relay in the truck 2 weeks ago and have not had a no start issue since. I still occasionally allow the Insight to fully boot up prior to start and it's always solid @ 48v.

Today I popped the old relay open and tried to get a look at the contacts. Couldn't really see all that much, so that's a little inconclusive.

This is the second time now that the Edge Insight has either alerted me to or helped me solve a problem. Worth every penny

2005 F350 CCLB Dually 4x4 Lariat 6.0L

Fixes:
Coolant flushed & DieselSite coolant filter
Blue spring
New OC & STC upgrade
Turbo lube tubes upgraded
Insight CS
BPD EGR Cooler
Hemicbx is offline  
post #3 of 6 Old 05-15-2011, 05:54 PM
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You've just given me one more reason to purchase the edge insight.
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post #4 of 6 Old 05-15-2011, 06:08 PM Thread Starter
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Here's another:

Back in January I had to go about 100 miles to pick something up. I had been noticing that the battery light would flicker a little right after start, but then it'd go out.

I set the edge to show me battery voltage and started out to pick up my stuff. I saw that battery voltage wasn't up to snuff, but figured I'd drive a little anyway. About 10 miles from home, battery voltage had steadily trended downward and the battery light came on solid. New alternator, done. Most importantly, I didn't end up sitting on the side of the PA turnpike.

Get one. With the latest software update providing HPOP pressure and FICM voltage, it's even better!

2005 F350 CCLB Dually 4x4 Lariat 6.0L

Fixes:
Coolant flushed & DieselSite coolant filter
Blue spring
New OC & STC upgrade
Turbo lube tubes upgraded
Insight CS
BPD EGR Cooler
Hemicbx is offline  
post #5 of 6 Old 05-15-2011, 06:31 PM
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Yea, it just seems like a necessity. I plan on keeping my truck for years to come. Where did you purchase it if you don't mind me asking? I was thinking of buying from xtremediesel.com.
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post #6 of 6 Old 05-15-2011, 06:40 PM Thread Starter
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Yes, mine came from Xtremediesel. Good service, fast shipping. There are loads of other good vendors out there who are also site sponsors. I think pricing is pretty consistent from one to the next.

2005 F350 CCLB Dually 4x4 Lariat 6.0L

Fixes:
Coolant flushed & DieselSite coolant filter
Blue spring
New OC & STC upgrade
Turbo lube tubes upgraded
Insight CS
BPD EGR Cooler
Hemicbx is offline  
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