bain Posted February 22, 2008 Share Posted February 22, 2008 I have a 92 SC400. The speedometer was intermittent for a while (a good tap on the dash brought it back). Now it is not registering at all. The odometer is not working properly nor is cruise control. I pulled the engine codes (even went into diagnostic mode) and receive no engine codes. I was thinking the problem to be one of the speed sensors, but thought they should show up when pulling the engine/transmission codes. The lack of sensor codes seems to point to a problem in the dash with the speedometer, but non-functioning odometer and cruise seem to point elsewhere. Does anyone have any recommendations? Should I just replace 1 or both of the speed sensors? It looks like Auto Zone carries speed sensors now. Should I try those or stick with original Lexus parts? Thanks for any help. Quote Link to comment Share on other sites More sharing options...
bain Posted February 28, 2008 Author Share Posted February 28, 2008 Can someone at least verify that speed sensor 1 is what drives the speedo? (Are there just the two speed sensors?) Quote Link to comment Share on other sites More sharing options...
jzz30 Posted February 29, 2008 Share Posted February 29, 2008 a tap on the dash leads me to believe that your cluster is the culprit. Quote Link to comment Share on other sites More sharing options...
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