Suzuki DL650K5 Service Manual page 531

DL650K7/AK7 ('07-MODEL) 13-27
"C23" (P1651-H/L) TO SENSOR CIRCUIT MALFUNCTION
On model K7, the connector terminals to be used for checking
sensors for voltage, resistance or continuity at the ECM terminal
ECM coupler (Harness side)
are located as shown in the illustration.
* Refer to the DL650 service manual 4-35 for details.
"C24" (P0351) or "C25" (P0352) IGNITION SYSTEM MALFUNCTION
(When indicating C24/P0351 for IG coil #1)
(When indicating C25/P0352 for IG coil #2)
* Refer to the IGNITION SYSTEM for details. (!Page 65)