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Component damage;
Water inlet short circuit;
The components are loose and fail after vibration.
EMS fault diagnosis process
1. Analyze the situation reflected by users
Make detailed records of problems (faults, other situations reflected by the user) and the
occurrence process stated by the user.
2. Check, record and sort out diagnostic trouble code
It can read out the fault content through the instrument fault indicator and fault diagnosis
instrument, and look up the fault code table
Diagnostic trouble code confirmation procedure:
Open the power supply
Connect malfunctioning tool.
Read the historical malfunctioning and clear the historical malfunctioning
Close the power and turn it on again.
Start
Run the machine at idling speed for 2min (if it can't start, press the start Push button 5s)
and perform 2~3 times of acceleration and deceleration.
Read the current malfunctioning with a scan tool.
3. Appearance inspection
Check whether the wire connector, fuse, high voltage connecting wire, throttle and its parts
are abnormal.
4. Basic function check
Check battery
Check whether the engine can start, idle and accelerate
Check the fuel pump for operation
Check the ignition spark and spark plug
Check the engine speed sensor for iron filings
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