ELECTRICAL SYSTEM
14 - 1
Exploded View…………………………………………………………………...………14-3
Technical parameters………………………………………………………....………14-6
Special tools……………………………………………………………………..………14-7
Battery ……………………………………………………………………………....……14-8
Remove the battery……………………………………………………….....………14-8
Turn off ignition switch…………………………………………………….....………14-8
Battery charging……………………………………………………………...…………14-9
Charging condition check…………………………………………………..………14-11
Generator inspection……………………………………………………..…………14-12
Circuit diagram of charging system………………………………………………14-13
Voltage regulating rectifi er inspection……………………………………………14-14
Remove……………………………………………………………………...………14-14
EFI system ……………………………………………………………………..………14-15
Schematic diagram of EFI system………………………………………………14-15
Temperature Sensor………………………………………………………………14-16
Function introduction ……………………………………………………………14-16
Working principle…………………………………………………………………14-16
Performance parameter…………………………………………………………14-17
Fault diagnosis……………………………………………………………………14-17
Oxygen sensor ………………………………………………………………..………14-18
Function introduction…………………………………………………………...…14-18
Working principle……………………………………………………………………14-18
Performance parameter……………………………………………………………14-19
Electrical characteristic parameter………………………………………………14-19
Troubleshooting……………………………………………………………………14-20
Electronic control unit（ECU）………………………………………………………14-21
Function introduction………………………………………………………………14-21
Electrical characteristics……………………………………………………………14-21
Fault diagnosis……………………………………………………………………14-21
ECU stitch definition………………………………………………………………14-22
Fuel injector …………………………………………………………………………14-23
Working principle…………………………………………………………………14-23
Performance parameters…………………………………………………………14-24
Fault diagnosis……………………………………………………………………14-24
Ignition coils………………………………………………………………...…………14-25
Working principle ……………………………………………………………………14-25
Performance parameters…………………………………………………………14-26
Fault diagnosis……………………………………………………………………14-26
Spark Plug …………………………………………………………………..…………14-27
Remove and install spark plugs…………………………………………………14-27
Engine speed sensor……………………………………………………...…………14-28
Technical performance test………………………………………………………14-28
Fault diagnosis……………………………………………………………....………14-28
Oil Pressure Sensor ………………………………………………………….....……14-29
Fault diagnosis………………………………………………………………….......……14-29
Throttle valve body assembly ………………………………………………....……14-30
ELECTRICAL SYSTEM
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