KYMCO X-Town 250 ABS Service Manual page 171

13. FUEL INJECTION SYSTEM
INSPECTION
Disconnect and remove the ECU from the
frame.
Check for continuity between pin 9 and 10
of the ECU side connector.
There should be continuity at all times.
Check for continuity between each pins 2, 23
and 4 of the ECU side connector.
There should be continuity at all times.
Check for continuity between pin 4 and 10of
the ECU side connector.
There should be no continuity at all times.
ECU PIN FUNCTION
PIN NO. NAME
1 IGP
2 LG
3 HEGO
4 SG
5 TH
6 VCC
7 BATT
8 FAN
9 PG1
10
PG2
11 IG
12 CRK-P
－
13
－
14
15 TEST
INJ
16
－
17
FUNCTION
Ignition power
Logic ground
HEGO sensor
Sensor ground
Throttle position sensor
Sensor power output
(+5V)
Battery
FAN RELAY
Power ground 1
Power ground 2
Ignition coil
Crank pulse sensor
－
－
Injection
－
PIN NO. NAME
18 MIL Multi indicator lamp (ECLP)
19 FLPR
20 ISCBP Idle speed control (ISC) B (+)
Idle speed control (ISC) A (+)
21 ISCAP
22 HEGO
HT
23 CRK-M Crank pulse sensor ground
24 TW
25
－
ROLL
26
27 PM
28 SOL
－
39
30 K-LINE
Idle speed control (ISC) / B (-)
31 ISCBN
32 ISCAN Idle speed control (ISC) / A (-)
33 NE
X-Town250/300 ABS
FUNCTION
Fuel pump relay
HEGO HT sensor (O2 HT
sensor)
Water temperature sensor
－
Roll sensor
Manifold pressure sensor
(Intake pressure sensor)
－
－
Diagnostic tool
Meter
13-22