2005-2011 Honda FourTrax Foreman TRX500 FE/FPE/FM/FPM/TM Service Manual, Page 458Get this manual
ELECTRIC SHIFT PROGRAM (ESP; FEFPE model)
SERVICE INFORMATION
GENERAL
When checking the ESP system, always follow the steps in the troubleshooting flowchart {page 22-71The ESP parts can be serviced with the engine installed in the frameThis vehicle's ESP control unit is built into the ECM The ECM may be damaged if droppedAlso, if the connector is disconnected when current is flowing, th excessive voltage may damage the ECMAlways turn off the ignition switch before disconnecting or connecting the con nectors Use digital tester for ESP system inspection, Refer to inspection for the gear position switch (page 21-11), Refer to inspection for the rear VS sensor (page 23-7