Question about 2000 Cadillac Catera

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2000 catera frequent speedometer not working

, car runs great, however, the speedometer will stop working and the ABS light comes on and the power steering gets tight. Any suggestions?

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  • Anonymous Mar 23, 2014

    does not run when at stop sign

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Hi, in ure case the abs ecu is obviously a main ecu. it sounds like you have a can communication problem where your system detects hi speed can malfunction, or interferance, measure your end of line resistance=120ohms and network nominal value should be 60ohms voltages between can hi and low should ad up to 5v , or to ground eg. can hi=2.7v then can low should measure 2.3v. if either one of these measurements dont add up you know which cercuit is at fault.

It might even be a vehicle speed /wheelspeed sensor contaminated or damaged component causing system shut down.

Posted on Jul 22, 2008

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