CHILL 125 cc. SERVICE MANUAL AND EFI DIAGNOSTIC
35
Malfunction code
：
P0201
Information
：
Injector 1 Circuit Malfunction
ITEM
OPERATION
RESULT
NEXT STEP
1
Connect the diagnostic tool, and ignition on.
next
2
Remove the connector of injector 1, use multimeter to check whether the voltage of
Pin A is about 12V.
Yes
Step 4
No
Next
3
Check whether the connection between pin A and the main power relay is short to
ground or open.
Yes
Harness issue
No
Next
4
Use multimeter to measure whether the resistance between pin A and B of the
injector is about 10-14 Ω @ 20
℃
No
Change the injector
Yes
next
5
Use the multimeter to check whether the voltage of Pin B is about 12V.
Yes
Help
No
Next
6
Check whether the connection between pin B of the injector and J2-05 of the ECU is open
or short to battery/ground.
Yes
Harness issue
No
Help
