IPC Module Self Test

[chrisg71727]

I'm new to the forum so if this has been addressed already please direct me to the post. Thank you.

I'm doing an instrument cluster upgrade in my 2015 Ford F-350 Powerstroke. The truck came with the "basic" instrument cluster which is difficult to read during the day. I have two of the higher level clusters which, according to Ford, are valid part numbers for my year and model. Both appear to work fine with the exception that they "reboot" about every 10 seconds. Can't seem to figure out why this is happening. I had the mileage on one of the clusters reset to match the actual mileage on the truck thinking that that might be causing the problem but I'm still getting the continuous "reboots." I used FORScan to read the data in the original IPC and have tried duplicating that in the replacement clusters but that hasn't helped either.

In the course of my troubleshooting, I've attempted to run an IPC module self test with FORScan. The original cluster tests OK. Both of the replacement clusters fail the self test. Both replacement clusters worked fine when removed from their donor vehicles and I've also had them bench checked. I was told they were both fine.

My question is this, what exactly is the IPC module self test looking at? My thought is that if I could tell specifically what the test is doing I might be able to pinpoint the source of my problem. There is no logging available when running the self test so I can't tell the precise step where the test fails.

Any help with this would be very much appreciated! Thank you!

[ifrythings]

The problem you have is your new cluster has an additional CAN bus called I-CAN on it, with nothing hooked up to that bus, every message the cluster sends out on that bus errors out as no module is there to successfully acknowledge any of the message and the clusters error counter eventually hits the limit and causes the cluster to reset.

Basically you just need to hookup any CAN bus module(has to be the same speed 500kbps or HS CAN speed) to that network and the rebooting will stop.

[chrisg71727]

Thanks for your reply. Question for you. I didn't notice any other connectors on the new cluster. Am I missing something here or is the communications taking place across an existing wire(s) and they're not connected?

[ifrythings]

Base cluster only has HS CAN on pins 14/15


On the Lariat and higher trims that have the 4.3" productivity screen they added wires to pins 1/2 for the I-CAN bus, same plug just using unused pins that they used for this new bus.