YD-EM279
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PREMIUM E-MOBILITY
3.2.7.5 Converter fault maintenance determination method
Function definition: convert the high-voltage DC current of the power battery into stable low-voltage DC
current, which is used to provide the 12V lighting power supply of the vehicle and to
assist the floating charging of the battery.
Common faults: the horn not tooted, the light not on
3.2.7.6 Fault diagnosis and troubleshooting steps
(1) Input signal check:
Performance check: test the input signal voltage
of the throttle using the voltage gear of the multi-
meter, which shall be 72V.
No input sig-
nal
1. Overhaul the main cable
With signal input
Judge converter OK
(2) ACC2 voltage check of center control:
Performance check: test for voltage input at the
ACC2 of the center control using the voltage gear
of the multimeter.
No voltage
input
1. Check for damage in the ACC2 of the
center control
No voltage input
Judge converter OK
3.2.8 Disassembly and installation of GPS positioner
3.2.8.1 Service tools
●
Cross screwdriver
3.2.8.2 Disassembly and installation
Disassembly
●
Park the vehicle on a horizontal road surface to
support the main bracket.
●
Close the key and pull it out.
●
Open the seat cushion and turn off the air switch.
●
Disassembly the front wall. → page 51
●
Along - arrow - Disassembly GPS - 1 -.
●
Disconnect the GPS connector - arrow -.
d
Installation
Installation is carried out in reverse order of disassembly.
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