anyone recognise this cruise control part?
anyone recognise this cruise control part?
Author
Discussion

buzzer

Original Poster:

3,621 posts

269 months

Sunday 10th July 2011
quotequote all
The cruise control has stopped working on my old Corolla after many years sterling service... Its an after market type of unknown make, I have had it on my last 3 cars and transferred it to the Corolla a few years ago... I cant see any name on any of the components.

its senses the speed of the car off a couple of magnets on the inner drive shaft CV joint and the little coil you see in the pictures below. I checked the Ohm reading on the coil and it was open circuit, suggesting there was an internal break in the wire, hence i broke it apart.

Anyone any Idea what the part could possibly be off and where I could obtain a replacement?




Blue32

453 posts

198 months

Sunday 10th July 2011
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My dad has something similar on his car, I think It’s one of these:
http://www.audiovideo4me.com/VSS_Speed_Pulse_Gener...

aww999

2,078 posts

290 months

Sunday 10th July 2011
quotequote all
The way you describe it working, I believe that is a Hall effect sensor. The magnet passing near the coil of wire creates a pulse of current which is read by an ECU. I guess your new coil would need ot be of similar proportions so that the pulse is also similar, and your cruise control ECU will stand a hance of understanding it. I'm no expert though!

buzzer

Original Poster:

3,621 posts

269 months

Monday 11th July 2011
quotequote all
Blue32 said:
My dad has something similar on his car, I think It’s one of these:
http://www.audiovideo4me.com/VSS_Speed_Pulse_Gener...
Thanks, I will look into that one!

buggalugs

9,282 posts

266 months

Monday 11th July 2011
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You could try an ABS sensor in it's place? The slightly older 2 wire kind.

buzzer

Original Poster:

3,621 posts

269 months

Sunday 17th July 2011
quotequote all
buggalugs said:
You could try an ABS sensor in it's place? The slightly older 2 wire kind.
Good suggestion, but it didn't work so I resorted to making a new coil which I then grafted into the original body...

In the picture you can see the new bobbin and the mandrel that was used to wind it. the wire is only 2 thou so its pretty fine! there was an amazing amount of wire in such a small coil! Anyway, all done and back to normal, thanks for the suggestions!







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Mr Happy

5,893 posts

249 months

Sunday 17th July 2011
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It's always nice to see something fixed rather than chucked. Top work smile

Edited because I'm a dunce!

Edited by Mr Happy on Sunday 17th July 12:58