Suzuki Burgman UH125 Service Manual page 313

DETECTED
DTC No.
ITEM
TO sensor
23
H
P1651
L
Ignition
signal
24
P0351
Fuel injector
32
P0201
ISC valve
40 (P0505)
40 (P0506)
40 (P0507)
Fuel pump
41
H
P0230
L
DETECTED FAILURE CONDITION
The sensor voltage should be the fol-
lowing for 2 sec. and more, after igni-
tion switch is turned ON.
0.2 V sensor voltage < 4.7 V
In other than the above value, 23
(P1651) is indicated.
Sensor voltage is higher than specified
value.
Sensor voltage is lower than specified
value.
CKP sensor (pick-up coil) signal is pro-
duced, but signal from ignition coil is
interrupted 8 times or more continu-
ously. In this case, the code 24
(P0351) is indicated.
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 32 (P0201) is indi-
cated.
The circuit voltage of motor drive is
unusual.
Idle speed is higher than the normal
condition.
Idle speed is lower than the desired
idle speed.
Idle speed is higher than the desired
idle speed.
No voltage is applied to the fuel pump,
although main relay is turned ON, or
voltage is applied to fuel pump
although main relay is turned OFF.
Voltage is applied to fuel pump
although main relay is turned OFF.
No voltage is applied to the fuel pump,
although main relay is turned ON.
SERVICING INFORMATION
CHECK FOR
TO sensor, lead wire/coupler
connection
TO sensor circuit shorted to
VCC or ground circuit open
TO sensor circuit open or
shorted to ground or VCC circuit
open
Ignition coil, wiring/coupler con-
nection, power supply from the
battery
Primary fuel injector, wiring/cou-
pler connection, power supply to
the injector
ISC valve circuit open or shorted
to ground
Power source circuit open ISC
valve is fixed to full open
Disconnected ISC valve hose
Air passage clogged
ISC valve is fixed
ISC valve pre-set position is
incorrect
ISC valve hose connection
ISC valve is fixed
ISC valve pre-set position is
incorrect
Main relay, lead wire/coupler
connection, power source to
main relay and fuel injectors
Main relay switch circuit shorted
to power source
Main relay (switch side)
Main relay circuit open or short
Main relay (coil side)
10-3