Malfunction code and defective condition (Suzuki V-Strom DL-650, 1 generation, 2004-2011) [Engine and systems: Fuel injection]

MALFUNCTION CODE	DETECTED ITEM	DETECTED FAILURE CONDITION
		CHECK FOR
C00	NO FAULT	—
C12	Crankshaft position sensor	The signal does not reach ECM for 3 sec. and more, after receiving the IAP signal.
		The crankshaft position sensor wiring and mechanical parts. (Crankshaft position sensor, lead wire/coupler connection)
C13	Intake air pressure sensor	The sensor should produce following voltage. 0.1 V ≤ sensor voltage ≤ 4.8 V Without the above range for 4 sec. and more, C13 is indicated.
		Intake air pressure sensor, lead wire/coupler connection.
C14	Throttle position sensor	The sensor should produce following voltage. 0.1 V sensor voltage ≤ 4.8 V Without the above range for 4 sec. and more, C14 is indicated.
		Throttle position sensor, lead wire/coupler connection.
C15	Engine coolant temperature sensor	The sensor voltage should be the following. 0.1 V ≤ sensor voltage ≤ 4.6 V Without the above range for 4 sec. and more, C15 is indicated.
		Engine coolant temperature sensor, lead wire/coupler connection.
C21	Intake air temperature sensor	The sensor voltage should be the following. 0.1 V ≤ sensor voltage ≤ 4.6 V Without the above range for 4 sec. and more, C21 is indicated.
		Intake air temperature sensor, lead wire/coupler connection.
C23	Tip over sensor	The sensor voltage should be the following for 2 sec. and more after ignition switch turns ON. 0.2 V ≤ sensor voltage ≤ 4.6 V Without the above value for 2 sec. and more, C23 is indicated.
		Tip over sensor, lead wire/coupler connection.
C24/C25	Ignition signal #1/#2	Crankshaft position sensor (pick-up coil) signal is produced, but signal from ignition coil is interrupted continuous by 8 times or more. In this case, the code C24 or C25 is indicated.
		Ignition coil, wiring/coupler connection, power supply from the battery.
C28	Secondary throttle valve actuator	When no actuator control signal is supplied from the ECM or communication signal does not reach ECM or operation voltage does not reach STVA motor, C28 is indicated. STVA can not operate.
		STVA lead wire/coupler.
C29	Secondary throttle position sensor	The sensor should produce following voltage. 0.1 V ≤ sensor voltage ≤ 4.8 V Without the above range for 4 sec. and more, C29 is indicated.
		Secondary throttle position sensor, lead wire/coupler connection.
C31	Gear position signal	It judges from gear position voltage, engine speed and throttle position by ECM, when the gear position voltage is 0.2 V and less.
		Gear position sensor, wiring/coupler connection. Gearshift cam etc.
C32/C33	Fuel injector #1/#2	When fuel injector voltage gets 1.3 V and less, C32 or C33 is indicated.
		Injector, wiring/coupler connection, power supply to the injector.
C41	Fuel pump relay	No voltage is applied to the both injectors #1/#2 for 3 sec. after the contact of fuel pump relay is turned ON. Or voltage is applied to the both injectors #1/#2, when the contact of fuel pump is OFF.
		Fuel pump relay, connecting lead wire, power source to fuel pump relay, fuel injectors.
C42	Ignition switch	Ignition switch signal is not input in ECM.
		Ignition switch, lead wire/coupler.
C44	Heated oxygen sensor (HO2S) [E-02, 19]	The sensor voltage should be the following and less after warming up condition. (Sensor voltage ≤ 0.4 V) Without the above value, C44 is indicated. Heater operation voltage does not reach in the oxygen heater circuit, C44 in indicated. The Heater can not operate.
		HO2S lead wire/coupler connection. Battery voltage supply to the HO2S.
C49	PAIR control solenoid valve	PAIR control solenoid valve voltage is not input in ECM.
		PAIR control solenoid valve, lead wire/coupler.

Malfunction code and defective condition (Suzuki DL650 V-Strom)