Malfunction Code And Defective Condition - Suzuki AN650/A Supplementary Service Manual

MALFUNCTION CODE AND DEFECTIVE CONDITION

DETECTED
DTC No.
C00 NO FAULT
ISC valve
C40 (P0505)
C40 (P0506)
C40 (P0507)
ECM/PCM
power input
C41 (P2505) signal
HO2 sensor
C44
P0130
C44
P0135
C49 PAIR control
solenoid
P1656
valve
DETECTED FAILURE CONDITION
ITEM
Although current is flowing though the
ISC valve motor, the current detection
is not possible.
Idle speed is lower than the desired
idle speed.
Idle speed is higher than the desired
idle speed.
No voltage is applied to the ECM,
although the ignition switch is turned
ON.
HO2 sensor output voltage is not input
to ECM during engine operation and
running condition.
(Sensor voltage < 1.0 V)
In other than the above value, C44
(P0130) is indicated.
The Heater can not operate so that
heater operation voltage is not supply
to the oxygen heater circuit, C44
(P0135) is indicated.
PAIR control solenoid valve voltage is
not input to ECM.
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AN650/AK7 ('07-MODEL)
CHECK FOR
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ISC valve circuit open or shorted
to ground
Air passage clogged
ISC valve is fixed
ISC valve pre-set position is
incorrect
ISC valve is fixed
ISC valve pre-set position is
incorrect
Lead wire/coupler connection of
ECM terminal to fuel fuse, fuel
fuse, battery voltage to ECM
(BATT) shorted to ground or
open
HO2 sensor circuit open
HO2 sensor lead wire/coupler
connection
Battery voltage supply to the
HO2 sensor
PAIR control solenoid valve, lead
wire/coupler
15