Check engine light comes on when I turn on bed lights????

[Gladiator Brad 704]

Needs another new Gage cluster. The first one took about 4 months to arrive. At least my fuel gage is still working this time. With the UAW strike I won't be holding my breath

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[sharpsicle]

UAW doesn't make the gauge cluster. Likely not even Jeep themselves. Other companies make the components, UAW workers do the assembly of them at the plant.

 

[Gladiator Brad 704]

I have been thru this before. I will post an update with any new info.

 

[ShadowsPapa]

UAW doesn't make the gauge cluster. Likely not even Jeep themselves. Other companies make the components, UAW workers do the assembly of them at the plant.

Can't speak for the cluster itself, but the radio section, depending on version, is made by companies like Samsung or Mitsubishi Electric or similar companies. So could be a Korean company or a Japanese company for all we know.

 

[Gladiator Brad 704]

Yes. But you can be assured that the UAW has their hands in the shipping and storage of these parts. A lot of the people that work in and manage these sites and the movement of these parts are union or will strike with the union.

 

[ShadowsPapa]

Yes. But you can be assured that the UAW has their hands in the shipping and storage of these parts. A lot of the people that work in and manage these sites and the movement of these parts are union or will strike with the union.

What will happen is that deliveries will not be allowed. Supply chains choked, and the suppliers that are smaller shops will be killed off. It's looking bad for the automotive supplier industries. The bigger ones will survive, the auto makers will survive (but be hurt badly) but smaller suppliers will be badly hurt, if not go out of business.
The repercussions of this will be felt over a broad swatch of the world.

 

[Lunentucker]

Maybe I missed it somewhere, but did anyone suggest checking for bent or broken pins in the door wiring connectors?
If not, I'd be looking at those closely.

 

[Gladiator Brad 704]

All 4 doors go bad at the same time????? Plus the bed light switch?? I have been told that the maker of the dash does random test on completed units. If the random test unit fails it is discarded. Nothing is done about the other 100 or so units being made at the same time.
Poor to no quality control.

 

[ShadowsPapa]

All 4 doors go bad at the same time????? Plus the bed light switch?? I have been told that the maker of the dash does random test on completed units. If the random test unit fails it is discarded. Nothing is done about the other 100 or so units being made at the same time.
Poor to no quality control.

Spot checks have been the norm for a century. You can't pull ever single product produced, connect it to the test equipment and run the tests when talking so many units per day.
Some items it can be done, others - not so easily.
Testing also by its very nature is limited. You subject a product to a battery of tests, and then it goes out to the field and hits a different set of circumstances that may not be common, or the item that passes........ Especially in electronics it gets very tricky.
When I worked at Compressor Controls Corp, it was discovered that if a company, pick on TI for example, provided the chip used in a control panel and everything worked but TI couldn't supply that chip for a while and a Samsung chip was used - suddenly there were unforeseen anomalies, same chip, perfect match, exact cross, but the tolerances stacked up differently.
So in that case, one of the Series IV designs had to be extremely specific, ONLY this number of chip from TI can be used. No substitutions.
For all we know, they had to buy a supply of something from another source - say that Samsung makes the cluster for Jeep, they source from (pick any current chip maker) and things work great but they can't get that one and have to substitute. It works - but, it's on the edge which is found out only when installed and used.
They can only test for xx many conditions. Likely they check for operation under varying voltages (these can run from 12.4 to 15.0 volts unless the voltage supplied to the cluster is regulated), different temperatures and more. Maybe there's an issue that after so many heating/cooling cycles something happens.
And as the QA at CCC told me - electronics fail at power-up. So they power the thing up, it passes all tests, they do that a time or 3 but the component that fails is failing after 100 power-ups.
Not making excuses, just saying - it's not as simple as it may appear. My father was a chief/lead inspector in a factory, a friend used to work in quality control in an automotive electric component supplier (the stories he's told!), and I worked in a very high end electronic engineering company (but I'm certainly NO EE!)
I did design the test sequences and programming for the CCC Series IV computer interface contract for the Gazprom contract. A series of mashing the hard drive, intense memory tests, all while going through intense heating and cooling cycles (Gazprom operates in the extremes of climate)
That was simple - every unit went through it because there were only a few dozen systems involved. Otherwise, to submit hundreds or thousands of units to such testing would take months.

 

[kb5zcr]

This is the problem with modern Computer/Canbus everything cars these days.

I have a new Rubi on order and watched this video yesterday, and I have to say I do think about this and hope I didn't make a mistake going for a new modern vehicle.

 

[Hootbro]

This is the problem with modern Computer/Canbus everything cars these days.

I have a new Rubi on order and watched this video yesterday, and I have to say I do think about this and hope I didn't make a mistake going for a new modern vehicle.

If you are afraid of Can Bus, you are looking at vehicles then from early to mid 2000's and back for something more analog. That is a 20+ year old vehicle that will have it's own problems.

 

[ShadowsPapa]

This is the problem with modern Computer/Canbus everything cars these days.

I have a new Rubi on order and watched this video yesterday, and I have to say I do think about this and hope I didn't make a mistake going for a new modern vehicle.

Seriously? Take info from youtube "stars"?

The problem is that so many people who make such videos just don't have any real technical abilities - and blame the systems instead of their lack of understanding.
All I have to do is look at the preview screen and I have an idea of what to expect..........

If you are afraid of Can Bus, you are looking at vehicles then from early to mid 2000's and back for something more analog. That is a 20+ year old vehicle that will have it's own problems.

I'd suggest back to the late 1970s.

This is the carburetor stepper motor control (leaned out the engine under certain conditions) and ignition timing control system from 1982 ->

Transmission control - 1994 ->

PCM - 1994 ->

I merged the PCM and PDC wiring from 1994 into my 1982.
If people think that going back would be more simple - they need to go back to the era of my first cars.

 

[Lunentucker]

All 4 doors go bad at the same time?????

if they're all on the same circuit? Yeah.

 

[Lunentucker]

Here's the video the other "YouTube star" was referencing.
My old '71 Cutlass wouldn't start sometimes when it it rained really hard. I knew what to do.
I'm impressed that this guy found the issue on the the F150 at all.

Y'all keep driving your Jeeps in deep holes. ?

 

[Vtur]

What model is your Gladiator? Maybe they had replaced with wrong cluster from a different model? It would be wierd that FCA would reversed the canbus code between the two though.

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