Yingang YG125-30B, Руководство пользователя

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YG125-30B Maintenance Manual Engine management system
151
Malfcode
：
P0113
Information
：
IAT Circuit High Voltage
ITEM OPERATION RESULT NEXT STEP
1 Connect the diagnostic tool, and ignition on. Next
2 check whether the data of
‘
intake air temperature
’
equals to the real intake
air temperature.
Yes Setp 5
No Next
3 Remove the connector, and use the multimeter to check whether the
resistance between pin B and D is reasonable according to the temperature.
Yes Step 5
No Next
4 Remove the connector and check whether the voltage between pin B and D
is about 5V.
Yes Next
No Check harness
5
Check whether the following pins are short to ground or open: J2-8, J2-10 of
the ECU and pin C, D of the connector.
Yes Change the harness
No Next
6 Crank the engine and stay idle. Check whether the
‘
intake air temperature
’
goes up when the engine temperature goes up.
Yes Help
No Change the sensor.
Malfcode
：
P0117
Information
：
Coolant/Oil Temperature Sensor Circuit Low Voltage
ITEM OPERATION RESULT NEXT STEP
1 Connect the diagnostic tool, and ignition on. Next
2 check whether the data of
‘
engine temperature
’
equals to the real
temperature.
Yes Step 5
No Next
3 Remove the connector and use the multimeter to check whether the
resistance between pin A and C of the sensor is reasonable according to the
temperature.
Yes Step 5
No Next
4 Use the multimeter to measure whether the voltage between A and C is
about 5V.
Yes Next
No Check the harness
5 check whether the following pins are short to gound or open: J2-10, J2-14 of
the ECU and pin C and D of the sensor.
Yes Harness issue
No Next
6 crank the engine and stay idle. Check whether the
‘
engine temperture
’
goes
high when engine get warm.
Yes Help
No Change the sensor
Malfcode
：
P0118
Information
：
Coolant/Oil Temperature Sensor Circuit High Voltage or Open
ITEM OPERATION RESULT NEXT STEP
1 Connect the diagnostic tool, and ignition on. Next
2 check whether the data of
‘
engine temperature
’
equals to the real
temperature.
Yes Step 5
No Next
3 Remove the connector and use the multimeter to check whether the
resistance between pin A and C of the sensor is reasonable according to the
temperature.
Yes Step 5
No Next
4
Use the multimeter to measure whether the voltage between A and C is
about 5V.
Yes Next
No Check the harness
5 check whether the following pins are short to battery or open: J2-10, J2-14
of the ECU and pin C and D of the sensor.
Yes Harness issue
No Next
6
crank the engine and stay idle. Check whether the
‘
engine temperture
’
goes
high when engine get warm.
Yes Help
No Change the sensor