Sym GTS 250 Service Manual page 246

2. Removed TB code manually:
A. Key Off.
B. Use a clip or wire to connect two joints in the CHK LIGHT Test Switch
(Picture B). The connection must be solid without any loosen, the electrical
conduction must be good.
C. Keep throttle full opened.
D. Key On (Throttle is still full opened.)
E. After Key turned ON, keep throttle full opened for at least 5 seconds.
F. The Check Light will blink twice, which means the TB codes are removed.
G. Release throttle, Key off, remove the connected clip / wire on the CHK LIGHT
Test Switch. Operation completed.
CHK Light Error Message Definition and
Item TB Code Trouble Description
Throttle position sensor
1 0120
Map Manifold absolute sensor
2 0105
Engine Temp sensor (Water
3 0115
Air Temperature Sensor
4 0110
5 1630
O² Sensor (Oxygen Sensor)
6 0130
7 0201
8 0351
9 0230
countermeasure Chart
Temp. Sensor)
Roll over Sensor
Fuel Injector
Ignition Coil
Fuel Pump
CHK Light
Error Message
Status
0
Blinking
Long
0
Blinking Long
1
Blinking Long
.
Blinking 1
Long
1
Blinking
Long
Blinking 1
Long
Blinking 3
Long
3
Blinking Long
Please diagnose by traditional way.
Blinking 4
Long
Counter Measure
Check Throttle position sensor and
6
Short
Check Map Manifold absolute
9
Short
sensor and wiring.
Check Engine Temp sensor (Water
2
Short
Temp Sensor) and wiring.
Check Air Temperature Sensor
3
Short
and wiring.
5
Check Roll over Sensor and wiring.
Short
Check O² Sensor (Oxygen Sensor)
7
Short
and wiring.
3 Check Fuel Injector and wiring.
Short
7
Short Check Ignition Coil and wiring.
1 Check Fuel Pump and wiring.
Short
wiring.