Bro longest time. Have you been able to fix this U1000 issue?? I have cleaned the grounds in the engine bay and the steering instrument area (removed the dashboard). The problem still persists. Tried a different ecm and ipdm and problem persists.
2004 FX35 ECM ground problem?
- Thread starter Carfreak70852
- Start date
Bro longest time. Have you been able to fix this U1000 issue?? I have cleaned the grounds in the engine bay and the steering instrument area (removed the dashboard). The problem still persists. Tried a different ecm and ipdm and problem persists.
Did you clean the main ECM ground behind the glove box? It's kinda hidden behind a bracket that supports a gray box. Just remove the bottom Bolt on the bracket and push the gray box up to expose the ground point.
I popped a U1000, U1001 and P1212 today so I cleaned every ground I could find. I also coated the ground terminals, bolts and Bolt holes with DeOxit, the best electrical solvent available. It cleans and leaves behind a corrosion-resisting layer of something.
Usually the codes instantly return upon energizing the system. So far today the codes have not come back.
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One poster said to apply dielectric grease to the ground points. Dielectric grease blocks voltage and if applied into the electrical path will disrupt current and drop voltage which will cause loads more problems.
I really wish people would stop advising other people to use dielectric grease. Its too easy to screw up and mess up electrical connections.
One time a guy was complaining about nothing working properly on his Porsche 928. He said he applied dielectric grease to his entire fuse block (old school fuses) and then reinstalled his fuses. I explained to him what dielectric grease actually does and that he needed to pull his fuses and clean the grease out 100% and try again. I think he felt dumb because he never responded back.
Dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material.
I really wish people would stop advising other people to use dielectric grease. Its too easy to screw up and mess up electrical connections.
One time a guy was complaining about nothing working properly on his Porsche 928. He said he applied dielectric grease to his entire fuse block (old school fuses) and then reinstalled his fuses. I explained to him what dielectric grease actually does and that he needed to pull his fuses and clean the grease out 100% and try again. I think he felt dumb because he never responded back.
Dielectric, insulating material or a very poor conductor of electric current. When dielectrics are placed in an electric field, practically no current flows in them because, unlike metals, they have no loosely bound, or free, electrons that may drift through the material.
onthemove
Member
My grounds are good to go. 
Dielectric grease or petroleum jelly will do the trick all day long.
Should I use dielectric grease on my ground connection? : CarAV
" A lot of people are stuck on the fact that it is an insulator. That's not the point, if the connection is half decent,the grease gets pushed out of the contact points. It is not completely necessary but it helps to prevent corrosion hence why I use it for anything exposed to the elements. "
Dielectric grease or petroleum jelly will do the trick all day long.Should I use dielectric grease on my ground connection? : CarAV
" A lot of people are stuck on the fact that it is an insulator. That's not the point, if the connection is half decent,the grease gets pushed out of the contact points. It is not completely necessary but it helps to prevent corrosion hence why I use it for anything exposed to the elements. "
onthemove
Member
I applied it beforehand. It's all good.
I worked as an Aviation Electrician in the Navy for twenty years and never did I even see a tube of dielectric grease.I applied it beforehand. It's all good.
Later I worked for Gulfstream building $75mil corporate jets (G650). Never was dielectric grease specified for a wiring installation.
The Navy had us clean junctions during inspections and then coat with RTV for sealing. Never dielectric grease.
onthemove
Member
That's great! I still applied it to all my grounds and they're still all good.
My left headlamp stopped working a few days ago. I went through the engine bay pulling, scrubbing and dosing with DeOxit all of my ground points. Then I did the same to my ECM ground point.
Now my left headlamp works again.
Coincidence, or truly connected?
Dunno.
Now my left headlamp works again.
Coincidence, or truly connected?
Dunno.