2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 12Get this manual
00-5 Precautions: 3) Using test male terminal, check the female terminals of the circuit being checked for contact tensionCheck each terminal visually for poor contact (possibly caused by dirt, corrosion, rust, entry of foreign object, etcAt the same time, check to make sure that each terminal is fully inserted in the coupler and lockedIf contact tension is not enough, rectify the contact to increase tension or replaceThe terminals must be clean and free of any foreign material which could impede proper terminal contact2) Disconnect the coupler "B" and measure resistance between couplers "A" and "B-1"If no continuity is indicated, the circuit is open between couplers "A" and "B-1"If continuity is indicated, there is an open circuit between couplers "B-2" and "C" or an abnormality in coupler "B-2" or coupler "C""A" "B-2" CDI unit
I827H1000003-01
I649G1000027-02
"B": Check contact tension by inserting and removing"C": Check each terminal for bend and proper alignment
4) Using continuity inspect or voltage check procedure as described below, inspect the wire harness terminals for open circuit and poor connectionLocate abnormality, if any