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There are three things which come to mind with your issue: The wiring which is going to the speedo sensor on the transmission is somehow messed up. This could be a break in the wiring, or it could be corrosion in the socket where it connects to the wiring harness. You can do a continuity check between the wiring harness at the ECU (or TCU if so equipped) ...


I think you may be correct about the VSS. It certainly would confuse the automatic transmission and would cause problems on the speedo. Why it would spring into life when the transmission changes gear is a bit puzzling. The VSS could also be involved in comparisons of speed by the ABS system, so could be affecting the ABS. If you are not able to get ...

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