Sym GTS 250 Service Manual page 239

2). Check procedure:
Electrical resistance measurement:
a). Use the Ohm function of electric meter to check the resistance value of AT sensor
(As shown in figure 24 )
Figure 24. Measuring the resistance value of AT sensor
3). Malfunction determination:
a). The relationship between electrical resistance value and the environmental temperature.
4). Abnormal phenomenon and treatment:
a). Sensor error or the coupler has bad contact pins.
b). Check wire harness for twisted or bad contact wires.
c). AT sensor abnormal, replace with a new sensor
12、AISV (Air Injection Solenoid Valve)
1). Picture illustration:
Electrical
TEMP(℃)
resistance
value(KΩ)
18.8 ± 2.4
-20
1.136 ± 0.1
40
0.1553 ± 0.007
100
24