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All I can see in the Haynes manual is a check using a high- impedance digital volt meter. Connect the positive probe to the center terminal and the negative probe to the ground terminal(black wire). (Note: This is done by back probing the electrical connector(don't unplug the connetor from the TPS). With the ignition on, slowly move the throttle lever until it is wide open and observe the reading on the meter. With the throttle fully closed it should read greater than 200 millivolts. With the throttle fully open, is should be a little less than 4.8 volts. If the voltage readings are incorrect, replace the TPS. It doesn't make any reference to what it should be at idle.

	Throttle position sensor A throttle position sensor (TPS) is a sensor used to monitor the position of the throttle in an internal combustion engine. The sensor is usually located on the butterfly spindle so that it can directly monitor the position of the butterfly throttle valve. The sensor is usually a potentiometer and therefore provides a variable resistance dependent upon the position of the butterfly valve (and hence throttle position). The sensor signal is used by the Engine Control Unit (ECU) as an input to its control system. The ignition timing and fuel injection timing (and potentially other parameters) are altered depending upon the position of the throttle, and also depending on the rate of change of that position. For example, in fuel injected engines, in order to avoid stalling, extra fuel may be injected if the throttle is opened rapidly (mimicking the accelerator pump of carburetor systems).