Keith Browning Posted July 15, 2010 Share Posted July 15, 2010 Anyone coming across 2011 trucks with module networking issues? I have had two trucks in with strange problems, one diesel and one 6.2L. Several modules not on-line, error messages on the dash and this current one in my bay, a no crank condition with ABS, TBCM Advance track errors. The BCM/APIM modules are the gateway modules for this vehicle so I am not sure where to begin my attack. Additional info from the HotLine: The PCM/BCM have the internal resistors for the HS-CAN network. With the concern present verify the voltage on the HS-CAN network(pins 6 and 14 at the DLC). Should be 2.5v on each of the network circuits. With all modules connected and on-line the resistance at the DLC pins 6 and 14 should be 60 ohms(if the resistance is 120 ohms it would indicate the BCM/PCM is off line). For testing purposes with the concern present disconnect the TBC/ABS module and re-attempt starting the vehicle. The TBC/ABS should not effect the vehicle starting if the modules were off line, unless the modules were pulling the voltage down effecting the modules on HS-CAN communicating. Quote Link to comment Share on other sites More sharing options...
Cetane Posted July 16, 2010 Share Posted July 16, 2010 Any chance the company welded on the vehicle when they installed the service body? I am sure you know that can cause odd module problems. In any case the hotline gave you pretty good advice. On a 6.7L the truck should crank if you have the BCM/ECM/TCM hooked up and communicating. I am not sure if that is the case with your 6.2L. Has it acted up since you plugged everything back in? Hotline was recommending that you unplug the ABS module for 1 minute when that happened to fix something they called "logic lock". Not sure what that means but apparently it worked. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 16, 2010 Author Share Posted July 16, 2010 You never know about welding. Usually the bodies are installed complete. I contacted the Hot-Line after I had finished my harness/connectors inspection and the vehicle has not acted up since but that isn't saying much. After all, the customer did drive the truck to the dealership, I drove it into my shop THEN it acted up. How long do you wait before you deem it fixed? We shall see. If it DOES act up, I will make the recommended checks... Quote Link to comment Share on other sites More sharing options...
Aaron Posted July 16, 2010 Share Posted July 16, 2010 Logic Lock is kinda like when you got too much shit going on on your PC, and it freezes up so bad not even CTRL-ALT-DEL works, and you gotta either unplug it or toggle the power, or press the reset button on the front of the case. (Most computers don't even have that anymore) Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 16, 2010 Author Share Posted July 16, 2010 Hotline was recommending that you unplug the ABS module for 1 minute when that happened to fix something they called "logic lock". Not sure what that means but apparently it worked. Worked how? As a quick fix o get the truck started or a permanent fix - which I cant see how disconnecting the ABS module would be any kind of a permanent fix for this logic lock. Quote Link to comment Share on other sites More sharing options...
Cetane Posted July 16, 2010 Share Posted July 16, 2010 No details beyond that. Maybe there is/was an ABS cal update that fix a flaw in the logic that wasnt available at that point. It doesnt sound like a permanent solution to me either. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 16, 2010 Author Share Posted July 16, 2010 Do you *think* there is any possibility that a software problem exists that would cause this? I still need to call the Hot-Line on this. Quote Link to comment Share on other sites More sharing options...
Cetane Posted July 16, 2010 Share Posted July 16, 2010 I have no idea, but I doubt they came up with this fix out of the blue. There had to be some reasoning behind it. If IDS lets you update ABS calibrations it might be worth a look to see if there is an updated cal file. I will say I only saw one instance in which this was suggested but I didnt dig too deep. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted July 17, 2010 Share Posted July 17, 2010 A preponderance (that is todays word, boys and girls) of Fords software seems to be at least influenced by Micro$oft, if not supplied by or written by the man that had tape on his glasses. This should put a quiver in your quiver... Ever had a case of "APIM freeze"? We've seen it after a customer disconnects and reconnects his battery(s). A short term cure is to disconnect and reconnect the battery(s). Go figure... Quote Link to comment Share on other sites More sharing options...
jimmy57 Posted July 18, 2010 Share Posted July 18, 2010 My experience with a car line using full vehicle CAN since 98 is that logic lock may be better described as a module going into off line protection mode. The module should be self-resetting from this but in a lot of cases that can't happen as some condition may exist that restarts CAN communication periodically and the reset is usually only going to happen if network is off for several hours and the modules can go down completely. The analogy of PC lock up is close. The modules can be forced into full shut down so full restart occurs by doing the battery disconnect. Even better is remove ground lead to battery and touch it to positive lead so capacitors for voltage drops & spikes internal to modules is more assured to be drained. Full forced power down was a permanent fix for the cars unless the cause was still there. Battery going down with key on and then a crank/start could do it as the battery voltage may go below min threshold at some modules but not all when cranking with weak battery. Quote Link to comment Share on other sites More sharing options...
vloney Posted July 18, 2010 Share Posted July 18, 2010 Had a 2010 explorer with the same problem. The 120 ohm "diminishing resistors" work in parallel, producing 60 ohms on each "leg" of the network. My problem ended up being a poor connection at the abs module. Apparently, this "open" made everything act like a short. Try disconnecting the abs module then running the network test to see if everything starts communicating. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 20, 2010 Author Share Posted July 20, 2010 Another day came and went without malfunction... the customer took his truck. The Hot Line asked me to call them but since the truck is now gone and I have no time to scratch my ass I never made the call. Sorry guys. If the truck returns we will get busy with it. Quote Link to comment Share on other sites More sharing options...
Aaron Posted July 23, 2010 Share Posted July 23, 2010 Hot off the Inford presses: Quote: MITCHELL PARKER B6224 MONAHAN FORD HIGH PRAIRIE , AB posted Jul 22, 2010 4:55PM -------------------------------------------------------------------------------- have a 6.7 no start in the shop, no comunication with the pcm. wsm has no information yet on how to daig. cluster wont show the milage and it shows tpms fault starter faul, engine over heat( engine is cold) advance track fault. has anyone else seen this yet? Thanks, im in the process of contacting hotline. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 23, 2010 Author Share Posted July 23, 2010 Have him sign up here... Update, I got word today that my truck is not fixed and will be returning soon. Keep in mind that mine is a 6.2L but I imagine a 6.7L would fall victim to this concern as well. Quote Link to comment Share on other sites More sharing options...
Aaron Posted July 23, 2010 Share Posted July 23, 2010 I told him to leave an email address so I could forward the website contact info -- I didn't wanna have the spies from FoMoCo canada trying to sign up and learn all our secretive warranty tricks! Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 23, 2010 Author Share Posted July 23, 2010 I told him to leave an email address so I could forward the website contact info -- I didn't wanna have the spies from FoMoCo canada trying to sign up and learn all our secretive warranty tricks! Too late. Hi guys! Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted July 24, 2010 Share Posted July 24, 2010 Originally Posted By: Aaron I told him to leave an email address so I could forward the website contact info -- I didn't wanna have the spies from FoMoCo canada trying to sign up and learn all our secretive warranty tricks! Too late. Hi guys! S'funny... how come I never seen you in the coffee room? Our Henry, who art no longer in the board room, hell bent be thy name.... Thy comp'ny sucks, my butt you fucks.... forever and ever... AHEM!!...Whoops, I meant AMEN!! Quote Link to comment Share on other sites More sharing options...
vloney Posted July 24, 2010 Share Posted July 24, 2010 Online wsm section 418-00 (module communications network) pinpoint test v Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.