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I was recieving codes C0690 and C0691 with the display showing, Service Ride Control, Shocks Inoperative, Max speed 80mph.
I decided to start checking for loose wires. I removed the back wheels and noticed the wiring for the shocks had been bypassed and a resistor had been installed.
Has anyone ever heard of this or know why someone would have done this?
My guess is something went bad with the resistor. You use it to avoid a code when changing out the stock shocks as opposed to deleting the RPO code from the BCM.
I actually just changed shocks and am learning about all this now too.
Last edited by nickolbag; Sep 15, 2009 at 03:21 PM.
I was recieving codes C0690 and C0691 with the display showing, Service Ride Control, Shocks Inoperative, Max speed 80mph.
I decided to start checking for loose wires. I removed the back wheels and noticed the wiring for the shocks had been bypassed and a resistor had been installed.
Has anyone ever heard of this or know why someone would have done this?
It's on a 2000.
Yep, the last owner chose not to replace the RTD shocks. A good lesson for those considering a C5 purchase...get the car on a lift and inspect so you know what has been done to the car before you buy
The magnetic ride control shocks are EXPENSIVE-most people pass out when they learn the replacement price. Most put in standard shocks and bypass with the resistor to make the computer happy.
If you've got a bad resistor,go to Radio Shack,and get a
10 ohm 10 watt wire wound resistor,and solder it in place of the bad one,that'll take care of the codes.(and you can drive fast again)