Technical Tips > Brakes, Suspensions, Steering, Wheels & Tyres

C4 ABS lateral accelerometer - alternate options?

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Vettech:
I've got an 87, and I must admit, I've never had a code or any issues.

We are talking the unit screwed to the trans hump just in front of the shifter arent we. Covered in carpet, ac and radios etc etc.

Having typed the above and then going surfing, I now see plenty of people on the web with issues.

Because LA's started back in 84, they were rudimentary devices, now years later they have amplfiers, pizo's etc etc and are micro small.

So being a person who loves to pull things apart and see how they work, I'd love see inside the unit
The basic C4/87 electrical supp book, shows two switches in line, short or open, two wires, whilst other years use three wires.
There is also suggestion of mercury switches being used. The LA appears to be riveted together.

Without getting my hands on one, I find it difficult to understand how mercury switches and or a resister can go faulty.
More likely to have HR connectors or joints esp earths.

Do you have the LA the  guy pulled apart !?!?!??......

jklumpp:
yes, that's the one.... though in my car it was relocated in the conversion (which made it a real headache to locate at first), and as I said before it was actually installed backwards!
I'll see if I can get some pictures.... haven't seen them for myself, but have been told they had a 'brown spot' in different locations.... I was picturing a circuit board, but could be wrong....

Vettech:
Ummm thats interesting, my little knowledge makes me think it should be mounted as flat as possible on the centre lateral line of the vehicle.

I suppose now with their evolution, miniturization etc and their use in everything from cars to mobile phones, they could I suppose be, purpose build to conform to any requirement.

Pics would be good, if like me you cant get pics on our forum, feel free to email me.

Regards
Doug

bfit:
 :banghead: its one of these problems.  :banghead: :banghead: :banghead: :therethere:

Hallsy:
I hope this is helpful.
I typed in “C4 corvette” in the C4 Corvette parts section of eBay (my son bought an 86 two weeks ago) and there’s a bloke (in the US) selling lots of parts...abs system,etc. It’s a donor car for a hot rod. He has a diagram of the wiring under the console with the part he is selling. He said he doesn’t know it’s purpose.
It’s listed as
“1994 Corvette C4 Parts -Sensor”
AU $53.19
obo

Hope it’s of interest, even just for the diagram.
Cheers,
Pete.

P.s. The diagram is in the “Item description” part.

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