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How do you test a ride height sensor?


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Great forum. Hope someone can help.

I bought a 2003 STS for my Mom for cheap $$ on eBay. Although a Ford guy, I've always loved Caddys and fixed up a 68 Deville convertible about 10 years ago for a 80th B-day present for my Dad.

This STS I believe was pulled out of a hurricane. It had about 30 codes stored, about half dozen active, and I've got it down to C0625, left rear ride height sensor. Now I assume these things are nothing more than potentiometers, so my question is does anyone have the resistance numbers the thing should be reading when it works?

I hate to buy a new one when all it may be is a bad connection somewhere. I really believe this car went for a swim at some point in it's life. It has a very shoddy paint repair job on both sides, a '98 hood in the same color, and shows evidence of having a tow hook rip through some of the frame. No wonder I won the eBay auction at $5400! Point is, there could be all kinds of funky corrosion on who knows where connector.

Any help would be appreciated!!

MustangDanimal

2003 Seville STS - Silver

19641/2 Mustang Convertible - 260V8 w/17D build date

1993 Mustang Triple White "Feature" 5.0 #268/1500

1999 Mustang GT Convertible, Anniversary Edition #761/4628

2002 Ford F150 Lariat 4x4 w/173,000 miles (runs like new!)

2007 Chrysler Pacifica Limited (company car)

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Your answer lies in the sensor on the opposite side. Put an Ohmeter on the connector and move the sensor arm from stop to stop and note the resistance values.

The ends of the potentiometer are pins A and C. The wiper arm is pin B.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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Great idea Jim

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Your answer lies in the sensor on the opposite side. Put an Ohmeter on the connector and move the sensor arm from stop to stop and note the resistance values.

The ends of the potentiometer are pins A and C. The wiper arm is pin B.

Duh! Why didn't I think of that!

Thanks Jim!!!!

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I've been playing this electronic game for 50+ years.

Report the resistance value back here; the Service Manual is vague about such things.

Jim

Drive your car.

Use your cell phone.

CHOOSE ONE !

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