A GM OEM "Old Anglo-Saxon" Expression?

[mrrsm]

I saw this image over on THIS Thread...

Passlock problems

So Im sitting in my parking lot at work. Security light flashing. So no start. This has been happening at random times for a year or so. It’s been fine for the past three months until today. I’ve sat through three ten minute cycles and still no joy. I don’t think it’s the ignition...

gmtnation.com

...and only Thomas @TJBaker57 knows the Real Answer, For Sure... :>)

 

[Mooseman]

All I see is 6.2k (with the 2 faded). Might be the resistance? I don't get it.

 

[TJBaker57]

Funny that comes up today.

I was further cataloging the values today. I gathered a listing of passlock code vs the sensor return values and also collected the resistance applied across the signal wire and ground.

I have collected 4 passlock sensors from the scrapyards and I try to take pictures of the color spots painted on them. I have to think it is a code of sorts so they know what resistance value is inside the sensor.



To be truly useful I would have to crack the code that is on the outside of the housing so as not to require this destruction to get to the sensor...





Today I swapped a couple sensors on my benchtop setup of a PCM, BCM, ignition switch and cluster and sucessfully performed the 30 minute relearn for the BCM to accept the swapped in passlock sensor. Monitoring the serial data stream allowed to to identify a couple more PIDs as well, though I don't know which is which as they return the same value.

 

[TJBaker57]

All I see is 6.2k (with the 2 faded). Might be the resistance? I don't get it.

You got it just fine!

 

[Mooseman]

I don't get his "anglo-saxon expression" reference.

So, even if your switch is borked, you can still find the resistance by just reading it and then reproducing it with either a pot or regular resistor.

 

[mrrsm]

I didn't want to mention this over in @TJBaker57 's OP because like me, he is ALWAYS so very sincere about his Topics (and justifiably so...) and I did not want to bring up this impression there, lest it be Too Off Topic and cause Thomas to misinterpret my observations as being disrespectful. But honestly, when I saw this of portion of his image at first glance, it made me Laugh Out Loud.

But sometimes, having the verisimilitude of a "Classical Education" can be a curse. My memory of this arcane, silly piece of sketchy information prompted a recognition of this 'Significant Symbology' so very out of place on Thomas' Auto Part. This is because it hearkens back to an Old English (Anglo-Saxon) Magistrate's Docket where the Bailiff would use a Particular Acronym, presently over-used and spoken too often everywhere you look in society.

But back then, it was just a brief Four Letter Description of a Common Morals Charge involving "Fornication ... Under Carnal Knowledge". Eventually, this expression would come to be used in different grammatical ways, depending upon the situations at hand. It only takes a little imagination to see and appreciate it if like mine, your head is filled with such nonsense.... :>)

 

[Mooseman]

Ah, just had to zoom in a bit more to see that the 6 was not an F

 

[TJBaker57]

So, even if your switch is borked, you can still find the resistance by just reading it and then reproducing it with either a pot or regular resistor.

Actually, reading the resistance requires triggering the hall effect sensor/circuitry. Otherwise it is an open circuit. I had to connect 12 volt power to the Passlock sensor, then rotate the key to the start position and only then can you read out the resistance.

 

[Mooseman]

What I meant by "read" is to actually read the value written in crayon on the sensor