2013 dies repeatedly while driving down the road

[bloc]

I like this theory. I want to believe it. I just don't know enough about the immobilizer system to feel good about it as the reason for the stalling. It seems like the immobilizer system is more involved with preventing starting.

Intermittent failures and unexplained resolutions are two things that are hard to deal with.

For now, I'm happy that things seem to be back to normal. I'll try to be content with that.

I just have to hope this doesn't crop up again, because I don't know what, if anything, I did to resolve it.

Was the immobilizer anywhere in the flow chart for diagnosing stalling problems?

I’ve definitely heard of other vehicles running then stalling with immob issues but don’t think they were Toyotas. After so many years of working on various makes it all starts to blend together.

 

[supdizzle]

this is like watching a really great movie and then the end just well.... ends with no resolution between characters....

 

[RET2]

this is like watching a really great movie and then the end just well.... ends with no resolution between characters....

Sure there was a resolution, a masculine one. Things work, no need for hand wringing feelings discussion. Fire that puppy up and get to adventuring.

 

[amagnono]

Dude! Amazing detail and dedication. I'm certain that all of your efforts will help folks down the line. So glad you got it working - enjoy your labor day!!!!!!

 

[M1911]

Try again with the fob you were using when you had the stalling problem. If it stalls again with that fob but not with your spare, then you have likely found the problem. If it doesn’t stall with the original fob, then I would worry that the problem might come back.

 

[bloc]

Sure there was a resolution, a masculine one. Things work, no need for hand wringing feelings discussion. Fire that puppy up and get to adventuring.

Tough to wring hands while trying to get the truck pulled over when you lose power steering on the freeway because the problem suddenly reappears.

 

[CharlieS]

Try again with the fob you were using when you had the stalling problem. If it stalls again with that fob but with your spare, then you have likely found the problem. If it doesn’t stall with the original fob, then I would worry that the problem might come back.

I did this a half dozen times yesterday, and again another four cycles today. Both fobs work as one would expect.

I drove 30 miles today, with multiple stops and shutdown cycles, and it worked without flaw with the original fob. All parts original to when the failure occurred...

Is that you, CDan? You helped me so many times with my 80 series' and 100 series. I can't thank you enough for the parts hookups. You helped further my cruiser addiction!

You've perfectly outlined my concern - not knowing root cause or how it was resolved, I can't feel good about whether it will come back...

My gut tells me I did something with a fuse, relay, connector or harness that changed things. I can't for the life of me tell what that might have been though...

 

[CharlieS]

Tough to wring hands while trying to get the truck pulled over when you lose power steering on the freeway because the problem suddenly reappears.

I guess the upside is that I live in a rural area, so the odds of me being on a freeway and having an issue are an asymptote to 0. . Not that I like the idea of stalling unexpectedly, but as a person living in a rural area, the odds of very bad outcomes are much lower.

I can say (as mentioned earlier) that I know the rig MUCH better and could jump to troubleshooting critical systems much faster if this happens again.

Maybe that heritage edition would be the right cure for my anxiety. lol. I was hoping to make it to 400k on this one though...

 

[Romer]

Is that you, CDan? You helped me so many times with my 80 series' and 100 series. I can't thank you enough for the parts hookups. You helped further my cruiser addiction!

I do not see @cruiserdan having posted in this thread, but he may now

 

[CharlieS]

I do not see @cruiserdan having posted in this thread, but he may now

Oops, I must've confused @M1911 with @cruiserdan . Sorry!

 

[M1911]

I did this a half dozen times yesterday, and again another four cycles today. Both fobs work as one would expect.

I drove 30 miles today, with multiple stops and shutdown cycles, and it worked without flaw with the original fob. All parts original to when the failure occurred...

Is that you, CDan? You helped me so many times with my 80 series' and 100 series. I can't thank you enough for the parts hookups. You helped further my cruiser addiction!

You've perfectly outlined my concern - not knowing root cause or how it was resolved, I can't feel good about whether it will come back...

My gut tells me I did something with a fuse, relay, connector or harness that changed things. I can't for the life of me tell what that might have been though...

I’m a software guy. When bugs in my systems mysteriously go away on their own, I expect them to come back just as mysteriously. Hopefully you have better luck than I.

 

[TeCKis300]

I’m a software guy. When bugs in my systems mysteriously go away on their own, I expect them to come back just as mysteriously. Hopefully you have better luck than I.

Murphy has a great sense to show up at the most inopportune moments too.

 

[chilibit]

My gut tells me I did something with a fuse, relay, connector or harness that changed things.

Mine says the same thing.

 

[linuxgod]

Assuming for a moment that the security fob has some sort of rolling code that it uses as it's (encryption) key, much like a garge door opener, I wonder if something happened along the way where the immobilizer was trying to roll the code after the engine started but the fob wasn't responding to that code. By using a different key the system was able to "reset" the sequence.

 

[cruiserdan]

I do not see @cruiserdan having posted in this thread, but he may now

I'm sorry to say that all I can add to this discussion is that I have nothing of value to add to the discussion. I have not encountered this problem before.

 

[gaijin]

Assuming for a moment that the security fob has some sort of rolling code that it uses as it's (encryption) key, much like a garge door opener, I wonder if something happened along the way where the immobilizer was trying to roll the code after the engine started but the fob wasn't responding to that code. By using a different key the system was able to "reset" the sequence.

I'm with you on this theory. Immobilizer code somehow got out of sync (low battery in key fob?), but was re-synced by using the second fob. Sounds good to me.

@CharlieS - I'd replace batteries in both key fobs and enjoy the working truck.

HTH

 

[TeCKis300]

Assuming for a moment that the security fob has some sort of rolling code that it uses as it's (encryption) key, much like a garge door opener, I wonder if something happened along the way where the immobilizer was trying to roll the code after the engine started but the fob wasn't responding to that code. By using a different key the system was able to "reset" the sequence.

Anything is possible.

The problem I'm struggling with if it's related to the immobilizer, is that proper function wouldn't have the engine shut down in the manner that's been occurring. Stalling without indication is an outright safety hazard and an OEM wouldn't design a system to do this even when dealing with a fault. Imagine someone starting up and pulling out of a driveway onto a busy street. We also know when taking a key away from a running engine, that the engine never stops for the duration of the trip. It only won't start once turned off. As the immobilizer also has status indication lights, it hasn't displayed anything right?

 

[Chocolate]

Just read through, glad you found a resolution.

 

[4xoddic]

My gut tells me I did something with a fuse, relay, connector or harness that changed things. I can't for the life of me tell what that might have been though...

I like this theory => many years into the ownership of our 88 FJ62, it began to randomly die while driving down the road. Repeated trips to our import mechanic, usually with no symptoms. He kept it & used it as his DD, with no resolution. Eventually, he did find a relay which would "wobble" in its socket. I don't recall whether he replaced that relay/socket, or just spread the relay's pins. No further gremlin.

@CharlieS, you didn't mention using anything on electrical contacts when reassembling, I've used CRC Electrical Silicone Liquid Lubricant in such cases. It does help in future disassembly.

 

[CharlieS]

I'm with you on this theory. Immobilizer code somehow got out of sync (low battery in key fob?), but was re-synced by using the second fob. Sounds good to me.

@CharlieS - I'd replace batteries in both key fobs and enjoy the working truck.

HTH

Wiil do. Thanks.