2007-2008 Yamaha YFM700 Grizzly Factory Service Manual, Page 442Get this manual
SIGNALING SYSTEM EBS01075 EBS01053
CHECKING THE SIGNALING SYSTEM
EBS01076
3Diode Remove the diode from the wire harness Connect the pocket tester1) to the diode as shown Measure the diode for continuity as followsNOTE: The pocket tester 90890-03112 and the analog pocket tester YU-03112-C readings are shown in the following table1The brake light fails to come on1Brake light bulb and bulb socket Check the brake light bulb and bulb socket for continuityRefer to "CHECKING THE BULBS AND BULB SOCKETS" Are the brake light bulb and bulb socket OK? YES NO Replace the brake light bulb, bulb socket or both2Brake light switches Check the brake light switches for continuityRefer to "CHECKING THE SWITCHES" Is the brake light switch OK? YES NO