Malfunction Code And Defective Condition - HYOSUNG COMET 250/R FI Service Manual

MALFUNCTION CODE AND DEFECTIVE CONDITION

MALFUNCTION
CODE
Engine temperature
C15
sensor (ETS)
Intake air pressure
C17 / C18 sensor (IAPS),
NO.1 / NO.2
Intake air temperature
C21
sensor (IATS)
C22
Oxygen sensor (O
DETECTED ITEM
S)
2
DETECTED FAILURE CONDITION
The sensor voltage should be the following.
0.1 V � sensor voltage < 4.6 V
Without the above range for 4 sec. and more, C15 is indicated.
Engine temperature sensor, lead wire / coupler connection.
The sensor should produce following voltage.
0.1 V � sensor voltage �
Without the above range for 4 sec. and more, C17 or C18 is
indicated.
Intake air pressure sensor, lead wire / coupler connection.
The sensor voltage should be the following.
0.1 V � sensor voltage < 4.6 V
Without the above range for 4 sec. and more, C21 is indicated.
Intake air temperature sensor, lead wire / coupler connection.
The oxygen sensor signal is input in ECU since then more than
120 sec. after the engine run.
When this is the case, ECU not receive the signal, C22 is
indicated.
Oxygen sensor, lead wire / coupler connection.
27
FI SYSTEM DIAGNOSIS 4-1-18
CHECK FOR
4.8 V