Not familiar with early OBD1, and S043 is grouped in with speed sensing, but know that there is a speed sensor in the hub of each wheel. These supply individual wheel speeds to braking and suspension control systems. The VSS - Vehicle Speed Sensor - on top of the right hand output shaft housing - drives not only your speedo but also furnishes comparison signals for ABS, transmission, and Traction Control.Hi,ı have so43 code error on my 93 seville sts.and ı checked means of that;speed signal fault
my question,speed signal fault but my speedometer is working therefore ı should check the module of that BUT ı dont know which module and where???
please help thanks....:cookoo: