2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 403Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 403

FUEL INJECTION SYSTEM TROUBLESHOOTING DETAILS This section describes the measures per fault code number displayed on the
sensor Check the installed area for looseness or pinchingReinstated by starting the Connected condition of connector If there
is malfunction, repair it and connect it engine and Inspect the coupler for any pins that securelyoperating it at may have
pulled outCylinder identification sensor coupler idleCheck the locking condition of the Main wiring harness ECU coupler couplerSub-wire
harness coupler Open or short circuit in wiring harness Repair or replace if there is an open or short circuitandor sub leadBetween
sensor coupler and ECU coupler Blue Blue WhiteBlack WhiteBlack BlackBlue BlackBlue Defective cylinder identification sensorReplace
if defective1Connect the pocket tester (DC 20 V) to the cylinder identification sensor coupler terminal as shownTester positive
probe Tester negative probe whiteblack blackblue 2Set the main switch to "ON"3Measure the cylinder identification sensor