Hi guys,

I normally post in the Excursion forum, but I think here might be more appropriate.

'05 Excursion 6.0L 72K normal maintenance always done.

4 months ago, replaced FICM with one from Swamps 52V.

Been hotter than hell in PA last couple of days, 107 yesterday. Truck ran great. Probably started in 10X.

Parked at work at 5pm. 10PM no start. Cranks good. Only code I get from AE is B1342 - ECU faulted.

Let it sit overnight, still no start.

FICM show 12V 52V 12V. Pretty confident it's not that, but it certainly seems like it's dead. Doesn't even try to start. Is there a fuse for the FICM?

Any help would be appreciated. If anyone in the Philadelphia area, feel free to contact me and use my AE.

 

Here is a place to start:

https://www.ford-trucks.com/forums/8...condition.html

The FICM relay is labled IDM Relay #304 (05-07) or Relay C1235 (03-04). Also fuse F2-22 under the dash. Check these specifically.

 

What's ICP psi when cranking?

 

Headed to work again now.

I will check FICM fuses and relay. But would I have voltage at FICM if I had an issue there?

Also will check ICP pressure and report back in about 15 minutes.

Thanks guys, it's only 104 here today, awesome.

 

ICP Pressure when cranking

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Just had the same issue. Disconnected the Batteries and turned on the head lights. Waited 10 min and reconnected. Fired right up and have had no more issues today.

 

Why did you do that? Or what made you to think that?

 

Well you have plenty of oil pressure.Have you checked the fuses and relays

 

Fuses good.

Relays - Only way I know to check them is to feel them manually click. Is there another way?

Anything specific?

FICM has Voltage. ICP Pressure appears good.

Running out of ideas here...

 

I would check the connectors on the FICM to be sure they are locked,there is an audible double click when they lock.As for a check of the relay someone else will have to answer that one.

 

Read somewhere in the Tech Folder that when having electrical issues to do that. Figured it was free and worth a try.

 

Check FICM sync/no sync. Also, B1342 comes up as an undocumented DTC in my AE library but the Ford specific library lists it as a GEM code but not for a diesel

 

If my disconnect trick works then take it strait to the house. Just went outside and it won't start again. Glad I made it home.

 

Check FICM connectors all good.

I tend to think it's the FICM but I just replaced it not 3 months ago.

I just got my AE yesterday so still learning.

Where do I find the FICM sync/no sync in AE?

Another forum has suggested that B1342 means the RCM is "fried". Restraint contol module.

Thanks

 

I just got my AE on Thursday afternoon and yesterday and today are the only days I have with it too, so I'm not much help.

After rechecking the AE DTC library for Ford it says ECU is faulted which to me says PCM is fried. Have you tried disconnecting the batteries to reset the PCM?