Suzuki Boulevard M50, Service Manual

Page: 392 / 454

10-4 SERVICING INFORMATION
DTC No.
DETECTED
ITEM
DETECTED FAILURE CONDITION CHECK FOR
C31
Gear posi-
tion signal Gear position signal voltage should be
higher than the following for 3 seconds
and more.
Gear position sensor voltage > 0.6 V
If lower than the above value, C31
(P0705) is indicated. GP switch, lead wire/coupler
connection. Gearshift cam, etc.
P0705
C32/C33
Fuel injector CKP sensor (pickup coil) signal is pro-
duced, but fuel injector signal is inter-
rupted 4 times or more continuously. In
this case, the code C32 (P0201) or
C33 (P0202) is indicated. Fuel injector, wiring/coupler con-
nection, power supply to the
injector
P0201/P0202
C41
Fuel pump
relay No voltage is applied to the fuel pump,
although fuel pump relay is turned ON,
or voltage is applied to fuel pump,
although fuel pump relay is turned
OFF. Fuel pump relay, lead wire/cou-
pler connection. power source to
the fuel pump relay and fuel
injectors
P0230
C42 Ignition
switch Ignition switch signal is not input to
ECM. Ignition switch, lead wire/coupler
P1650
C44
HO2 sensor
(E-02, 19, 24) HO2 sensor output voltage is not input
to ECM during engine operation and
running condition.
(Sensor voltage 0.1 V)
In other than the above value, C44
(P0130) is indicated.
HO2 sensor circuit open or
shorted to ground
P0130
C44
The Heater can not operate so that
heater operation voltage is not supply
to the oxygen heater circuit, C44
(P0135) is indicated. HO2 sensor lead wire/coupler
connection
Battery voltage supply to the
HO2 sensor
P0135
C49 PAIR control
solenoid
valve PAIR control solenoid valve voltage is
not input to ECM. PAIR control solenoid valve, lead
wire/coupler
P1656
SA
MP
LE