1999-2004 Honda TRX400EX FourTrax Service Manual, Page 250Get this manual
LlGHTSlSWlTCHES
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 Blackfwhite Position u
LIGHTING
STARTER
ENGINE STOP
LIGHTING SWITCH
Color Position Black Brown
DIMMER SWITCH