2007 Yamaha Apex Factory Service Manual, Page 607Get this manual

2007 Yamaha Apex Factory Service Manual, Page 607

FUEL INJECTION SYSTEM Fault code No23 Symptom Open or short circuit detected from the atmospheric pressure sensorUsed diagnostic
the locking condition of the Main wiring harness ECU coupler coupler2 Open or short circuit in wiring harnessRepair or replace
if there is an open or short circuitBetween sensor coupler and ECU coupler Blue Blue BlackBlue BlackBlue Pink Pink Defective
atmospheric pressure sensorExecute the diagnostic mode (Code No.02)Replace if defective1Connect the pocket tester (DC 20
V) to the atmospheric pressure sensor coupler terminal as shownTester positive probe Tester negative probe pink blackblue