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Old 12-02-2012, 04:46 AM   #1
s2per
Registered User
 
Join Date: Mar 2010
Location: Hernando Beach, FL
Posts: 8
Garage
Dead speedometer, Christmas tree on the dash

My wife's low-mileage Boxster (138,000+ and holding) developed a group of symptoms at the same time two weeks ago. I should mention that they happen simultaneously and usually after the car has warmed up and been driven 5-10 miles:

The speedometer quits
The odometer quits
No cruise control
The spoiler stays up
The brake fluid and ABS lights light up

After searching this and other forums, I figured that it was a ABS speed sensor, specifically at the left rear; I read that this wheel triggers the ABS computer's speedo/cruise/spoiler functions. So I replaced the LR sensor and still had same problem. Brake fluid is OK, no fuses out and all other systems working well.

My wife has a great attitude and has been using a HUD from her iPhone GPS app, but I'd like to fix this gremlin. It appears the next thing to check is the ABS brake pump, but I'd like to be sure it's bad before throwing another $2-500 at it for a used unit.

Anyone else have this happen?
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