2008-2009 Suzuki 750 King Quad Service Manual, Page 120Get this manual

2008-2009 Suzuki 750 King Quad Service Manual, Page 120

Engine General Information and Diagnosis: C21 (Use of mode select switch) Step Action Yes 1) Remove the left side coverRefer
contacts on the ECM coupler Open or short circuit in the Dg wire or BBr wire I831G1110051-01 4) Disconnect the coupler and
turn the ignition switch ON5) Measure the voltage between the Dg wire terminal and groundIf OK, then measure the input voltage
between Dg wire terminal and BBr wire terminalSpecial tool (A): 0990025008 (Multi-circuit tester set) Tester knob indication