Buying first truck, questions about this ECM report

All the faults are inactive. Could be they were repaired and ECM history not cleared. Could also indicate an intermittent issue that has yet to be repaired. Could go either way as the last recorded active fault was quite recent. Maybe try and get any recent workorders from the dealer since its Volvo Certified?

Some folks seem to think that forcing a manual regen will fix every check engine light (FYI it doesn't).

Regen completion history just shows how many regens were completed and how many were terminated early (ie a fault came active, an impatient driver etc).

 

Haven’t done Volvos, but 144 manual regens in 300k mi?

 

I never advocate a private person buying a Volvo. I'm not going to start a Ford/Chevy response, Volvo is a good truck,,,for a fleet, but are "throw-away" trucks, meaning, they are great for a while, but fleets use( and abuse) them, turning them over for new ones, and sadly, along comes you with good intentions, getting some worn out fleet truck. I go with Pete or KW, mostly because they have better resale, generally, aren't abused by the drivers, and just nicer trucks. Up to you, but remember, it's a lot easier buying a truck than trying to sell one. Good luck.

 

I'm not a Volvo tech, but I will gamble here that what you are seeing probably isn't as bad as you think. MID 144 is the address of the module reporting the fault. For Volvo's, this is cab computer. The 68 code is for the engine brake switch with some kind of fault or problem. The other code seems to be some sort of software or miscommunication with another device. With modern trucks, everything seems to be it's own module and computer these days that needs to have some sort of communication or interface with other modules. If not, you get codes like this. With Internationals, every truck we scan will always have these sort of codes. They can get logged under all sorts of normal circumstances such as low voltage protection and the truck starts to shut off unneeded accessories to save battery power. Many times when we start a truck with low batteries, some modules do not boot up properly or quickly enough and other modules "miss" them at start up and log codes. What you should be more concerned with is that the engine, trans and abs don't have a bunch of code and certainly nothing active. Also, never buy a truck without sitting in it, road testing and trying everything out first. For sure, make certain the engine brakes work on all levels due that one code. I would call the selling dealer and ask about the other one.

 

I don't have experience with that specifically. Maybe a Volvo guy can chime in here. Incomplete regens will happen anytime the system automatically starts and gets interrupted simply because you shut the truck off in the middle of one, so that isn't a big deal and very typical.