bewbie
Well-known member
Can the dealership refuse to work for warranty on the truck if they see it has been modified at homeIt is always advisable to do any gateway (GWM) or telematics modem (TCU) before doing anything else. Those two are key to other updates working properly.
Updates are quite often 'coordinated' (to use Ford's term). I would call them 'chained'. A lot of them are meant to be updated together and once you pick one of them in that group the sequence will kick off that updates all of them to ensure that they all get done as a group (as the engineers intended).
An example of this would be the powertrain group or set of modules that are always done at the same time. If you see a PCM, BECM, SOBDM, SOBDMB, and SOBDMC (and sometimes the ABS if it's there) in your list they will all get done at the same time. So when you start with the PCM and all you have to do is keep hitting the "OK" button and turn on and off the ignition when told to do so.
Another group or set of updates that are coordinated (usually) are the cruise-control related updates: CCM, CMR, IPMA, IPC, and PSCM. Clicking any one of them will kick off the chain and they will all get updated as a group.
Other updates are standalone and can be done in any sequence. Like the BCM, HVAC, door modules, etc.
I usually leave the APIM (Sync) module for last, but nothing says you have to.
There are three updates that are done individually, but because of software dependencies, often trigger follow-on updates of the others (until all three are done). That would be the GWM, the APIM, and the TCU (often in that order). So if you have a GWM in your list but don't have an APIM or TCU...updating the GWM often triggers the APIM...and then another GWM or the TCU pops up afterward.
Mike
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