Malfunction Code And Defective Condition - Suzuki AN400 Service Manual

MALFUNCTION CODE AND DEFECTIVE CONDITION

MALFUNCTION
DETECTED ITEM
CODE
C00 NO FAULT
Crankshaft position
sensor
C12
Intake air pressure
sensor
C13
Throttle position sen-
sor
C14
Engine coolant tem-
perature sensor
C15
Intake air temperature
sensor
C21
Tip over sensor
C23
Ignition signal
C24
Fuel injector
C32
Idle air control (IAC)
C40
valve
Fuel pump relay
C41
Ignition switch
C42
DETECTED FAILURE CONDITION
The signal does not reach ECM for more than 3 sec. after
receiving the starter signal.
The crankshaft position sensor wiring and mechanical parts.
(Crankshaft position sensor, wiring/coupler connection)
The sensor should produce following voltage.
(0.30 V sensor voltage < 4.45 V)
Without the above range, C13 is indicated.
Intake air pressure sensor, wiring/coupler connection.
The sensor should produce following voltage.
(0.45 V sensor voltage < 4.80 V)
Without the above range, C14 is indicated.
Throttle position sensor, wiring/coupler connection.
The sensor voltage should be the following.
(0.20 V sensor voltage < 4.80 V)
Without the above range, C15 is indicated.
Engine coolant temperature sensor, wiring/coupler connection.
The sensor voltage should be the following.
(0.20 V sensor voltage < 4.80 V)
Without the above range, C21 is indicated.
Intake air temperature sensor, wiring/coupler connection.
The sensor voltage should be the following for more than 2 sec.
after ignition switch turns ON.
(0.40 V sensor voltage < 4.60 V)
Without the above value, C23 is indicated.
Tip over sensor, wiring/coupler connection.
Crankshaft position sensor (pick-up coil) signal is produced but
signal from ignition coil is interrupted continuous by 2 times or
more. In this case, the code C24 is indicated.
Ignition coil, wiring/coupler connection, power supply from the
battery.
Crankshaft position sensor (pick-up coil) signal is produced but
fuel injector signal is interrupted continuous by 2 times or more.
In this case, the code C32 is indicated.
Injector, wiring/coupler connection, power supply to the injector.
No IAC valve voltage is supplied after starting the engine.
IAC valve, wiring/coupler connection.
No voltage is applied to 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, connecting lead, power source to fuel pump
relay.
Ignition switch signal is not input in the ECM.
Ignition switch, lead wire/coupler.
CHECK FOR
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FI SYSTEM 4-21