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Chasing ground

Hmm...one thing I'm not seeing discussed...

Loading the battery with a battery load tester would be better. If at 50-75 amps load on battery your "seat bolt" negative doesn't read the same as battery voltage, it is not a good ground.

Bonding Battery to Frame.

upload_2021-2-4_10-24-7.png

Many vehicles are starting to show problems with poor grounding thru Battery Cable returns.

Age related mostly - but then so is the type of grounding and bonding most car makers are using.

On top of, the rustproofing and corrosion inhibitor techniques - the bonding is more difficult to do because much of the bonding places are already tied up with their own needs. They use or make fewer holes that help keep the metal more sealed but little to offer in finding a good spot unless you use their own ground points.

I would like you to think about something, regarding power and your vehicle.

And I've seen the mess it makes afterwards ...

Remember this...
upload_2021-2-4_10-29-45.png
If you don't...
The Estimates can go into THOUSANDS
of dollars not just to replace the bags,
also repair the interior from the damages of going off.

So yeah, the Seat Bolt may provide ground...​

But also remember too, the LOCATION of the BOND and the route of wires that are going a GROUND Point...
  • They can be close together but their Ground takes precedence since it's ORIGINAL to the vehicle
  • - if they are different - Remember ohmic losses, if there is enough of a voltage drop across your bond to the Ground Point bond of the vehicles OWN sensors, that this difference can inject a spike into the system and trigger the above.
You just don't want to play with fire - if you can locate their ground point - note the wire run - GO IN THE OPPOSITE direction AWAY towards the REAR of the vehicle - this may cause a drop, but the drop is not generating a spike in the ground plane image at - or close to - the vehicles own grounding point for it's sensors.

Seatbelts are mounted for a holding and torque, if you place a RF bond there - this can generate that spike in their Seat Belts' "engagement" detector and set off a chain reaction you don't want to have happen. It can set a light on the dash, yes, but it can also trigger a "limp in" mode that causes you to lose power and even crash the vehicle because the Seat Belt "sensed" a failure - then tried to engage a seat belt retractor tightening the belt to help keep the occupant in the seat.

if you're under warranty or any sort of extended warranty - Air Bags may not be covered. You can clear the code - but if it's "Hard set" and you live in an area of vehicle inspections - questions can come up.
 
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