0122" Or "0123" Tp Sensor Circuit Malfunction - HYOSUNG 2010 ST7 Service Manual

4-35 EI SYSTEM DIAGNOSIS

"0122" or "0123" TP SENSOR CIRCUIT MALFUNCTION

LCD (DISPLAY) INDICATION
0122
0123
DETECTED CONDITION
☞ ☞ Refer to page 4-24
▣ ▣ INSPECTION
◈ Step 1
1) Turn the ignition switch "OFF" position.
2) Check the TP sensor coupler for loose or poor
contacts.
If OK, then measure the TP sensor input voltage.
3) Disconnect the TP sensor coupler ①.
4) Turn the ignition switch "ON" position.
5) Measure the voltage at the OB wire and ground.
6) If OK, then measure the voltage at the OB wire
and GR wire.
TP sensor input
voltage
Tester knob indication : Voltage (
Is the input voltage OK?
YES Go to Step 2.
● Loose or poor contacts on the
ECU coupler.
NO
● Open or short circuit in the OB
wire or GR wire.
[ 0
[ 0
4.9 ~ 5.1 V
( OB - Ground )
( OB - GR )
"FI" CHECK LAMP INDICATION
1 2 2
1 2 3
● TP sensor circuit open or short.
● TP sensor malfunction.
● ECU malfunction.
)
0 1 2 2
0 1 2 3
POSSIBLE CAUSE
①
0 1 2 ]
0 1 ]