Suzuki SV650A - Page 45

44 SV650K7/SK7/AK7/SAK7 (’07-MODEL)
“C44” (P0130/P0135) HO2 SENSOR (HO2S) CIRCUIT MALFUNCTION
(FOR E-02, 19, 24, 33)
INSPECTION
NOTE:
After repairing the trouble, clear the DTC using SDS tool.
Step 1 (When indicating C44/P0130:)
1) Turn the ignition switch OFF.
2) Remove the right frame side cover. (#SV650/SK3 7-4)
3) Check the HO2 sensor for loose or poor contacts.
If OK, then check the HO2 sensor lead wire continuity.
4) Disconnect the HO2 sensor coupler.
5) Check the continuity between W/G wire

A and ground.
6) Also, check the continuity between W/G wire

A and B/Br wire

B. If the sound is not heard from the tester, the circuit condi-
tion is OK.
" 09900-25008: Multi-circuit tester set
+ Tester knob indication: Continuity test (*)
DETECTED CONDITION POSSIBLE CAUSE
C44
(P0130)
After engine is started few minutes.
(Sensor output voltage 2.5 V)
Engine is cold and stopped.
(Sensor output voltage < 0.1 V)
In other than the above value, C44
(P0130) is indicated.
• HO2 sensor circuit open or shorted to ground.
• Fuel system malfunction.
• ECM malfunction.
C44
(P0135)
The heater can not operate so that
heater operation voltage is not supply to
the oxygen heater circuit.
• Battery voltage supply to the HO2 sensor.
ECM
Side-stand
relay
Ignition
switch
Engine stop
switch
O/W
W
Gr
B
W
B/Br
W/G
W/B
HO2 sensor
HO2S
HO2. H
E2
To GP
switch
1
1
!
SAMPLE