ABS problem

[glenndeweirdt]

I changed brake pads and flushed brake system and clutch on my 2008 Cayman S in preparation for first DE of season this Friday. Previously I had the brake wear sensors connected and wire tied out of the way but not plugged into the brake pads to allow easier changing between track days. Yesterday I had the bright idea of removing the sensors completely and now the ABS failure light is on. I confirmed ABS has failed as I nearly flat-spotted my AD08s bedding in the brakes.

Is the problem the lack of sensor cables? Is there a reason the ABS would not fail if the sensor cable are connected but not plugged into the brakes?

I plugged in my Durametric software but there is no area to reset ABS.

I will also check the fuse.

Anything else? Helpful comments?

[JFP in PA]

Year and model?

[glenndeweirdt]

2008 Cayman S. Sorry

[JFP in PA]

Originally Posted by glenndeweirdt

2008 Cayman S. Sorry

I'm surprised you cannot clear an ABS related code with the Durametric, did you try running the "Short test all modules" under the "Functions" tab? The Durametric features matrix also clearly shows it supports reading and clearing ABS codes on your model, so you may not have set the software correctly when you connected.

And as you have been disconnecting the brake sensors, are you sure you did not also do so to one of more wheel speed sensors (would trigger the ABS)?

[glenndeweirdt]

I did run the short test but will try durametric clearing again. I am sure that I did not disconnect a speed sensor by mistake.

On the other hand, I was practicing skidpad and modulating braking in a large vacant parking lot (one of the few advantages of our new economy and the demise of some big box stores) and may actually enjoy the lack of ABS. After all, the guys with the older, pre ABS 911s are always squalking that any monkey can drive a Cayman fast (unfortunately I agree). Maybe I will just do DE a little slower and build a higher skill level. This should be fine for Blackhawk Farms, but We are heading to Road America over Memorial day weekend and I probably would prefer the ABS functional.