1998 Cadillac Deville speedometer

1998 CADILLAC DEVILLE
107,000 MILES • V8 • FWD • AUTOMATIC
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RFORTE
  • MEMBER
  • 1 POST
digital speedometer only lights up on occasion-- most
of the time I'm guessing my speed. the rest of the
instrument panel stays lighted.
Aug 25, 2009 at 6:27 AM
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CADIEMAN
  • CERTIFIED EXPERT
  • 3,544 POSTS
u need to test the speed sensor output.you may have to replace the speedo head.
May 8, 2012 at 4:16 PM