2005-2008 Honda ATV TRX500FA/FGA Fourtrax, Rubicon Factory Service Manual, Page 511Get this manual
HONDAMATIC 2Mode Select Switch Line Inspection Turn the ignition switch OFFDisconnect the ECM 21P (Black) connector Check for continuity ECM 21P (Black) connector terminals of the wire harness side with the mode select switch in each mode position
ECM 21P (BLACK) CONNECTOR
Is there normal continuity? NO YES GO TO STEP 3GO TO STEP 4Switch Inspection (Handlebar
3Mode select switch side)