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There is a replacement that was mentioned at the Carlisle Tech Seminar, I recall it was a Cadillac part, only difference was the wire connector was in a different location, I wish I could give more info but all I remember.
Since this part is made of unobtanium, has anyone figured out a work around or repair for this?
Thanks in advance.
Rob
Not Sure how accurate this Cross Interchange part number info is, therefore anyone that has experience with
confirmed replacement use of ANY of the alternate part numbers should post up to
this thread.
There is a replacement that was mentioned at the Carlisle Tech Seminar, I recall it was a Cadillac part, only difference was the wire connector was in a different location, I wish I could give more info but all I remember.
I'm surprised you can find one used for $400. That's cheaper than what I've seen them going for.
There is not currently a replacement resolution because starting in 2001 the signal type the SWPS receives was changed. For 97-00 it received an analog signal. Starting in 2001 it received a digital signal. The only way to fully adapt the later SWPS is to change EVERYTHING relating to it; EBCM, ABS pump, flare new brake lines, etc etc. Crazy enough someone did do just that and it's a current sticky here in Tech.
You can see the differences in signal received through the wiring diagrams below (thanks to Bill Curlee for posting);
1997-2000 SWPS wiring:
2001-2004 SWPS wiring:
I'm not aware of what was spoken at the Carlisle tech talk but my assumption would be the same as the post above; it was likely making reference to a C6 part (The 2005 MY C6 uses the C5 design steering column, so it's further likely applicable to 2006-2013 C6s).
I'd love to get my hands one on of those older style position sensors. They're essentially rotary encoders which are very common. I'm betting with a little reverse engineering work an adequate replacement could be found or constructed.
Both have the digital encoder signals. The earlier also had an analog signal so it could sense when the wheel was centered.
Your diagrams are all wrong too. The below is edited to properly identify the early SWPS wiring. You didn't post anything showing the wiring of the later sensor.
Originally Posted by Velocity_Vette
For 97-00 it received an analog signal. Starting in 2001 it received a digital signal.
I'd love to get my hands one on of those older style position sensors. They're essentially rotary encoders which are very common. I'm betting with a little reverse engineering work an adequate replacement could be found or constructed.
it would be great if a Corvette enthusiast could reverse engineer a replacement or fix! In my case, I realized something like this would really cause me great concern and went on the hunt for a replacement. I found a new in the box SWP sensor for a 99 on eBay and bought it. About 5 years later I still haven’t had to install it but it still provides peace of mind and if I ever sell the car I hope it is still waiting to be used by the next owner. The price seemed high at the time, somewhere around $275.00 to my door.
it would be great if a Corvette enthusiast could reverse engineer a replacement or fix! In my case, I realized something like this would really cause me great concern and went on the hunt for a replacement. I found a new in the box SWP sensor for a 99 on eBay and bought it. About 5 years later I still haven’t had to install it but it still provides peace of mind and if I ever sell the car I hope it is still waiting to be used by the next owner. The price seemed high at the time, somewhere around $275.00 to my door.
Well when your original goes out, I'll cover the shipping for it to see what me and my EE hacker buddies can make of it.
Do you have Active Handling or not? There are two different steering sensors depending on what options the car has. The RPO JL4 option (Active Handling) steering sensor has 2 digital and 1 analog signal terminals with a specific set of pin outs. The NON JL4 sensor has 2 digital signals and 2 analog signals that are on different pin outs than the other steering sensor.
What codes are you getting? The first thing to do is to make sure that something else hasn't failed. The codes that usually get referenced are C1281 or C1283. For JL4 cars with codes C1281 or C1283 you are told to check wheel alignment, wiring, lateral acceleration and yaw sensors and other electrical issues. For code C1281 on a non active handling car you are told to check wiring.
The EBTCM could also cause the problem and that is totally out of reach.
You could spend a lot of money on an SWPS and find the fault lies somewhere else.
Someone here took one apart and posted pics. At the heart of the thing was a plastic "disc or rotor" that had electrically conductive coating on it - once the "wiper" scratches through the conductive coating and gets down to the underlying plastic its game over.
08-30-2018, 03:13 PM
1999 Steering Position Sensor Repair?
