Suzuki Intruder VZ1500 Service Manual page 92

1A-25 Engine General Information and Diagnosis:
Malfunction
Detected Item
Code
C42
Ignition switch
P1650
C44/P0130
HO2 sensor
(For E-02, 19, 24, 33)
C44/P0135
C49 PAIR control solenoid
P1656 valve
C60
Cooling fan relay
P0480
C62 EVAP system purge
control solenoid valve
P0443
(For E-33)
Detected Failure Condition
Ignition switch signal is not input to the ECM.
HO2 sensor output voltage is not input to ECM
during engine operation and running
condition.
(Sensor voltage > 0.55 V)
If lower than the above value, C44 (P0130) is
indicated.
The Heater can not operate so that heater
operation voltage is not supply to the oxgen
heater circuit, C44 (P0135) is indicated.
PAIR control solenoid valve voltage is not
input to ECM.
Cooling fan relay signal is not input to ECM.
EVAP system purge control solenoid valve
voltage is not input to ECM.
Check For
Ignition switch, lead wire/
coupler
HO2S lead sensor circuit open
or shorted to the power source,
HO2 sensor lead wire/coupler
connection
HO2 sensor circuit open or
shorted to the ground
Battery voltage supply to the
HO2 sensor
PAIR control solenoid valve,
lead wire/coupler connection
Cooling fan relay, lead wire/
coupler connection
EVAP system purge control
solenoid valve, lead wire/
coupler connection