Suzuki GSX-R750 Service Manual page 462

DETECTED
DTC No.
ITEM
IAT sensor
C21
H
P0110
L
AP sensor
C22
H
P1450
L
TO sensor
C23
H
P1651
L
Ignition sig-
C24/C25 nal
C26/C27
P0351/P0352
P0353/P0354
Secondary
throttle valve
C28
actuator
P1655
DETECTED FAILURE CONDITION
The sensor voltage should be the fol-
lowing.
0.15 V sensor voltage < 4.85 V
In other than the above range, C21
(P0110) is indicated.
Sensor voltage is higher than specified
value.
Sensor voltage is lower than specified
value.
The sensor voltage should be the fol-
lowing.
0.5 V sensor voltage < 4.85 V
In other than the above range, C22
(P1450) is indicated.
Sensor voltage is higher than specified
value.
Sensor voltage is lower than specified
value.
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 < 4.8 V
In other than the above value, C23
(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 C24
(P0351), C25 (P0352), C26 (P0353) or
C27 (P0354) is indicated.
When no actuator control signal is
supplied from the ECM, communica-
tion signal does not reach ECM or
operation voltage does not reach
STVA motor, C28 (P1655) is indicated.
STVA can not operate.
SERVICING INFORMATION
CHECK FOR
IAT sensor, lead wire/coupler
connection
IAT sensor circuit open or
ground circuit open
IAT sensor circuit shorted to
ground
AP sensor, wiring/coupler con-
nection
AP sensor circuit shorted to
VCC or ground circuit open
AP sensor circuit open or
shorted to ground or VCC circuit
open
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
STVA motor, STVA lead
wire/coupler
10-3