Use of diagnostic steps
GI-14
Codes of wire color
Double-color wire is represented by a double color
code
Ÿ The 1
st
letter stands for the back color of wire；
Ÿ The 2
nd
letter stands for the strip color.
Fuse
Replacement
1. In replacement of fuse, identify first the
specification of fuse. If the fuse just replaced is
burned out ， it is properly caused by the
short-circuits in the line and needs to be
checked.
2. Prior to replace the main fuse，confirm that the
negative cable of battery has been disconnected；
3. The fuse puller shall be used for the replacement
of fuse.
Jumper of circuit fault diagnostic tool
The jumper is designated to shorten the connection
with both ends of switch or ground for the inspection.
Attention:
Do not use the jumper to ground directly，because
this will result in damage or fire of electric
elements.
Voltmeter
A DC voltmeter can be used to measure the circuit
voltage，the voltmeter with a scale of 15V shall be
applied. Connect the points to be measured with the
positive (red lead) and the negative (black lead) to the
grounding.
Ohmmeter
The ohmmeter is an instrument designated to
measure the resistance between two points in the
circuit ， and used to check the connection or
short-circuit.
Attention :
It is not allowed to connect the ohmmeter with any
circuits where the voltage exists，otherwise it will
damage the ohmmeter.
PS wire
Grounding
wire
Ohmmeter
红
黑
Light Green
Red
Brown
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