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Both ABS and Rear Spoiler warning light on

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My 97 Tip Boxster was being driven by my girlfriend when I noticed the ABS warning light was on.

Pulled the car over, turned it off, and started it back up. The ABS light was still on, but now, the Rear Spoiler warning light won't go off either.

It seems that there is now a fault in both the ABS and Rear Spoiler, both within minutes of each other.

Does anyone have any prior experience with these faults?

I hate my Boxster. It's already had two AFM changes since I bought it less than a year ago. And now this.

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I think I know the problem now.

This morning I went for a drive, the same lights were on and I also noticed the speedo signal wasn't there - showing 0 when I am doing around 60kph.

Since the ABS and Spoiler both require some speedo signal to work, I am pretty certain this is the cause of the problem.

Does anyone know where the speedo signal cable is located and where its connectors are? I am hoping it's just a loose connection somewhere along its path.

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