2005-2006 Honda ATV TRX500FE/FM/TM FourTrax Foreman Factory Service Manual, Page 419Get this manual
ELECTRIC SHIFT PROGRAM (ESPFE model) 6TP Sensor Ground Line Short Circuit Inspection Turn the ignition switch to OFFCheck for continuity between the Greenblue wire terminal of the wire harness side sensor connector and groundIs there continuity? NO YESCheck the TP sensor connector for loose or corroded terminal- Repair short circuit in the Greenblue wire
TP SENSOR CONNECTOR (Viewed from the terminal side)
Greenblue 7TP Sensor Resistance Inspection Check that the resistance between the Yellow black and Greenblue terminals varies with the throttle position while operating the throttle leverFrom fully closed position to fully open position: Resistance increases From fully open position to fully closed position: Resistance decreases Does the resistance vary properly? NO YESReplace the angle sensor- GO TO STEP 8