1999-2002 TRX400EX Fourtrax Service Manual, Page 250Get this manual
LIGHTSSWITCHES
HANDLEBAR SWITCH
INSPECTION
Disconnect the handlebar switch 6P connectorCheck for continuity between the connector terminals in each switch positionContinuity should exist between the color coded wires as follows:
ENGINE STOP SWITCH Color Position OFF RUN OFF Blackfwhite Green
6P CONNECTOR
LIGHTING
Position FREE
STARTER ENGINE STOP
LIGHTING SWITCH Color Position OFF ON Black Brown
DIMMER SWITCH
Color Position HI (N) LO