What is OBD Code p1633 (2000 S80 2.9)? - Volvo Forums - Volvo Enthusiasts Forum

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Old 07-03-2008, 07:34 PM
Join Date: Jul 2008
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Default What is OBD Code p1633 (2000 S80 2.9)?

I am the owner of a 2000 S80 2.9 that is reporting OBD Code P1633. I also see the WarningMessages for "Brake Service Required" and "STC Service Required" displayed. The ABS and STC warning lights also come on then off. I also notice the trip odometer displays"dashes" for a short time, then displays the correcttrip mileage again.

Could this be a bad ABS Control Module or a problem withone of the speed sensors.

The car has new brakes and up-to-date Warranty Service.

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Old 07-03-2008, 08:29 PM
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Join Date: Sep 2004
Location: Orlando, Florida
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Default RE: What is OBD Code p1633 (2000 S80 2.9)?

I say bad ABS module.(Very common signs of it being bad)
1987 Ford mustang LX Coupe 5.0
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