5. FUEL INJECTION SYSTEM MXU 500EXi/MXU500i TPS INSPECTION Support the ATV on a level surface. Turn the ignition switch to "ON". Measure if the ECU voltage outputs to TPS between the following terminals of the TPS connector. Terminal Normal V/R (+) -V/G(-) 5V Throttle position sensor (TPS) resistance (at 20°C/68°F) 3500~6500 Cable Ends REMOVAL Loosen the throttle cables with the adjusting nuts. Disconnect the throttle cable ends from throttle seat. Adjusting Nuts TPS Sensor T-MAP Sensor Disconnect the TPS, ISC and T- MAP sensor connectors. Loosen the air cleaner connecting hose band screw. Loosen the intake manifold band screw. Remove the throttle body, T-MAP sensor, TPS sensor and ISC sensor as a set. ISC 5-26