um CHILL 125 cc. Service Manual page 26

Diagnostic help：
1) If the malfunction code shows again after clearance, check whether the connector is connected well.
2) Do not ignore the effect of the engine maintenance situation, the cylinder pressure, and the mechanical ignition timing.
3) Change another ECU to do the test. If the malfunction code disappears, the root cause is the ECU. If the malfunction code is still there, then use the old ECU to
do the test.
Malfunction code：P0107
Information：MAP Circuit Low Voltage or Open
ITEM OPERATION
1 Connect the diagnostic tool, and ignition on.
2 Check the data of 'BARO'. Make sure whether it is about 100kPa (depending on
where you are)
3 Remove the connector, and use the multimeter to check whether the voltage
between pin B and D is about 5V.
4 Check whether the following pins is short to ground: J2-11, J2-10, J2-16 of the ECU
and pin A, D, B of the connector.
5 Crank the engine to stay at idle. Check whether the MAP is about 30-50kPa. Then
go to WOT, check whether the MAP goes to about 90kPa.
CHILL 125 cc. SERVICE MANUAL AND EFI DIAGNOSTIC
RESULT
Yes
No
Yes
No
Yes
No
Yes
No
NEXT STEP
next
Step 5
next
Step 5
Next
Check the harness
Next
Diagnostic help
Change the sensor
26