TOYOTA ELECTRONIC MODULATED SUSPENSION (TEMS) Speed Sensor Mode Select Switch TEMS Indicator Rear Actuator Stop Light Switch Throttle Position Sensor Front Actuator TEMS Computer Steering Sensor Check Connector FA1993 Troubleshooting PRELIMINARY CHECK • Check cold tire inflation pressure. • Check lubrication of suspension and steering linkage. • Check chassis ground clearance and wheel alignment. • Check battery voltage above 12 volts. • Check that all connector are secure.