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Pcm
- Thread starter mleniger
- Start date
MisterBill2
- Joined Jan 23, 2018
- 27,501
A replacement part for that transistor??What was it in??
I think that is a "Harris" logo.
I think that is a "Harris" logo.
1997
1997 F250 PCM yes I know I can spend 300 to 1000 for a new PCM but I accepted the challenge to fix this one because it's just like a epoxy board on any other electronic
It's was all repairable it's just this one transistor that needs to be replaced I was able to threw with a magnifying glass and replace capacitors and kept everything below 160c to 150c that's about 300 to 320 Fahrenheit
What did you find because I found the ones I don't need lol
No your good I'm just stressing and the wife told me that I have until January 21st or I'll have to buy a replacement pcm
panic mode
- Joined Oct 10, 2011
- 4,974
exactly... and while it looks messed up by corrosion, it may still work. did you try testing it?
schmitt trigger
- Joined Jul 12, 2010
- 2,085
I am with WB on this one. Harris semiconductor was never a discrete transistor powerhouse. For all I know, it could be a voltage regulator.
But like an isolated word from a language you don’t know, context IS EVERYTHING.
In this instance, context would be the circuitry that this device is connected to.
EDIT; the corrosion is indeed severe. Did you replace the component just by its looks or how EXACTLY did you determine it was faulty if you don’t know what it is?
But like an isolated word from a language you don’t know, context IS EVERYTHING.
In this instance, context would be the circuitry that this device is connected to.
EDIT; the corrosion is indeed severe. Did you replace the component just by its looks or how EXACTLY did you determine it was faulty if you don’t know what it is?
Did get it down to a 100v 2amp regulator
Well Iam going to wing it at this point with even a PCM repair person even saying that they have no answer they don't replace them they scrap them that are like this
Said they don't go that deep into them they keep it simple if it's not then they just strip the board
schmitt trigger
- Joined Jul 12, 2010
- 2,085
Automotive companies make every effort possible to prevent repairs to their electronic modules.
Having worked for a Tier-1 electronics module supplier for automotive electronics, I can tell you that automakers don’t even allow the original module manufacturers to repair them, even though we had all the required information, equipment and components.
When we received a defective module, we would only make an in-depth analysis, provide root cause and corrective actions, and then scrap the unit. In certain modules, scrap meant crushing the unit.
Having worked for a Tier-1 electronics module supplier for automotive electronics, I can tell you that automakers don’t even allow the original module manufacturers to repair them, even though we had all the required information, equipment and components.
When we received a defective module, we would only make an in-depth analysis, provide root cause and corrective actions, and then scrap the unit. In certain modules, scrap meant crushing the unit.
Even more to the point, if that part is that severely corroded, it's hard to imagine that there isn't corrosion damage elsewhere that is just as bad.
