2008-2009 Suzuki 750 King Quad Service Manual, Page 123Get this manual

2008-2009 Suzuki 750 King Quad Service Manual, Page 123

1A-53 Engine General Information and Diagnosis: DTC "C23" (P1651-HL): TO Sensor Circuit Malfunction Detected Condition and
sensor malfunction ECM malfunction TO sensor circuit open or shorted to VCC or ground circuit open TO sensor circuit shorted
to ground or VCC circuit open I831G1110054-01 ECM coupler (Harness side) I831G1110019-01 Troubleshooting! CAUTION When using
the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with needle pointed tester probe to prevent