Troubleshooting - HYOSUNG MS3 250 Sercie Manual

9-1 SERVICING INFORMATION

TROUBLESHOOTING

◉ ◉ MALFUNCTION CODE AND DEFECTIVE CONDITION
MALFUNCTION
CODE
Throttle position sensor
C14
Water temperature
C15
Intake air pressure
C17
Intake air temperature
C21
C22
Oxygen sensor (O
C23
Tip over sensor (TOS)
DETECTED ITEM
(TPS)
sensor (WTS)
sensor (IAPS)
sensor (IATS)
S)
2
DETECTED FAILURE CONDITION
The sensor should produce following voltage.
0.1 V � sensor voltage � 4.8 V
Without the above range for 4 sec. and more, C14 is indicated.
Throttle position 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, C15 is indicated.
Water 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 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 120 sec
after the engine run.
When this is the case, ECU not receive the signal, C22 is indi-
cated.
Oxygen sensor, lead wire / coupler connection.
The sensor voltage should be the following for more than 2 sec.
after ignition switch turns "
4.5 V � sensor voltage �
Without the above value for 2 sec. and more, C23 is indicated.
Tip over sensor, lead wire / coupler connection.
CHECK FOR
4.8 V
" (ON) position.
5.5 V