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Registered
Join Date: Oct 2008
Posts: 1
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ABS - 4WD - Speedo problem 911 C4
Periodically, the ABS and 4WD warning lights come on for a split second. As this problem has worsened, the brake booster warning beep also sounds and the speedo reading drops to zero.
When the fault clears, the lights all go out and the speedo recovers. I also had a problem with Airbag and Seatbelt lights coming on - this was cured by following the steps detailed in the tech center re dry joints on the clock module connections. I wondered if anybody had seen similar issues and if there is a common electrical path between the ABS/4WD warning lights and the speedo? |
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10-30-2008, 03:38 PM
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Registered
Join Date: Nov 2001
Location: Denver
Posts: 9,729
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If your car is 91 up, the speedo is read from the left front abs sensor. Start there. Maybe pull it and clean it. They are magnetic.
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10-30-2008, 04:47 PM
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| 911 c4 abs 4wd speedo |
