BE-2
Brief Introduction
1. Power supply system
The power supply system includes accumulator, generator and its adjustor. Generator is the main power supply; the
accumulator is the auxiliary power supply. The generator, parallel with the accumulator, is equipped with the
adjustor, which is used to maintain the voltage of generator stable when the rotating velocity and the load varies.
2. Starting System
Which includes the direct current motor, drive mechanism and control device, etc. its performance is to start the
engine.
3. Lighting system
Which includes various lighting lamps inside and outside of the body and their control device; they are used mainly
to guarantee safety driving in night.
4. Alarming System
Which includes the electric horn, flasher and various service signal indicating lamps, etc. they are mainly used to
guarantee the physical and driving safe when driving.
5. Auxiliary Electric Appliance System
It includes the electric wiper, air-conditioner, recorder and cigarette lighter, etc.
R
red
R/G
redgreen
socket plugging element plug plugging elementN
2 3
4 5 6 123
4
5
S
socket plugging
elementplug plugging element
1. The codes of sockets of socket plugging element are
complied from left to right.
2. The codes of sockets of socket plugging element are
compiled from right to left.
Remark: all of plugging elements are watched from the in-
wiring direction.
3. Comparison between plug and socket plugging elements
The plug and socket plugging elements are classified accord-
ing to their in-built socket shape.
(a) All of plugging element are marked according to the
opening end and are locked at their tops.
(b) When pulling the plugging element, pull the plugging
element itself instead of wire.
Remark: before pulling the plugging element, check the
plugging element that you want to disconnect first to verify
their classifications.
English letters for wiring colors code:
B =black Bl =blue R =red Br =brown
Lg =reseda V =purple G =green O =orange
W =white Gr =gray P =pink Y =yellow
First letter stands for the basic color, while the second for the
stripe color.
Body Electric SystemBrief Introduction
BE-4
How to make systematic inspection
The inspection order is a simple troubleshooting approach, which is used to check and diagnose the failure on vehicle
when there is part (wiring and plugging elements excluded) failure in the systematic operation or presupposed
system.
Following items should be considered firstly when checking the failure.
wiring failure
open circuit or short circuit of electric wiring
failure in plugging element connection or terminal connection
failure of fuse or maxi-fuse
Notice:
1. The inspection is conducted on vehicle when the system is in operation, therefore, security should be
taken into account when checking.
2. Care should be paid not to make short circuit in the system under the condition that the accumulator is
directly connected, and the applicable voltage should be selected correctly.
Voltage inspection
(a) Verify the voltage situation at the inspection spots.
For example:
Put the ignition switch atON position
Put the ignition switch and SW1 at ONposition;
Put the ignition switch of SW, SW1 and the relay at
ON position (SW2 at OFF position)
(b) Connect the cathode lead (-) to the normal grounding
place or the cathode terminal of accumulator with the
voltmeter; while connecting the positive lead (+) to the
plugging element or part terminal. Such inspection can
be conducted with the test bubble instead of voltmeter.
Inspection on Conductance and Resistance
(a) Disconnect the terminal or wire of accumulator to guar-
antee there is no voltage between the inspection sports.
(b) Connect the two measuring leads of ohmn meter with the
inspection spots.ohmn meter
SW SW2
electromagnetic coil relay SW1
fuse
IG terminal connected to ignigtion
switch of SW
12
0
0
V
Body Electric SystemBrief Introduction
BE-26Body Electric SystemLighting System
Inspection on Common Failure
FailurePossible Causes Repairing approaches Remark
Only one lamp doesnt work Burn off bubble
Grounding failure of socket or wiringChange the bubble
Make reparation as required.
Abnormal steering signal Burn off horn fuse Change the fuse and check to see Dr SF
whether there is short circuit
Failure of steering signal flasher Check the flasher
Failure of steering signal/alarming switch Check the switch
Wiring or groun ding failure Make reparation as required. One side of the steering Failure of steering signal switch Check the switch
signal doesnít flash Wiring or grounding failure Make reparation as required. Alarming lamp doesnt Change the fuse and check to see Change the fuse and check Dr SF
workBurn off horn fuse whether there is short circuit
Failure of steering signal flasher Check the flasher
Failure of steering signal/alarming switch Check the switch
Wiring or grounding failure Make reparation as required. The front combination Burn off fuse Change the fuselamp dont work
Failure of large lamp relay Check the relay
Failure of combinationswitch Check the switch
Wiring or grounding failureMake Make reparation as required
Burn off fuse in tail lamp Change the fuse and check
whether there is short circuit
Burn off maxi-fuse Change the maxi-fuse;
Failure of combined switch Check the switch;
Wiring or grounding failure Make reparation as required. Upper beam lamp doesnt work Failure of combination switch Check the switch
Wiring or grounding failure Make reparation as required
The rear combined tail lampand
license lamp dont work
BE-35Body Electric SystemCombination Instrument
Common Troubleshooting
a. Such failures as inaccuracy indication, out-operation of indicator, on the fly of large and small summation meters
(mechanical wheel drive excluded) or incomplete liquid crystal display are caused by the interior failures of the
instrument, therefore, these failures, once occur, should be judged according to the instrument interior failures, and
change the combination instrument directly.
b. In case both the large and small summation meter and the indicator of electronic odometer are on the fly, such failures
can be removed by disassembling the speed sensor from the whole vehicle first, then connecting the sensor and
combination instruments as shown in the drawing.
Then, open the power supply and run the rotors quickly to observe the indicator variation of odometer.
the odometer indicator
should be no less than 40Km/
h variation in speed under
common condition whenrunning the rotors,
otherwise,
change with the good sensor
good combination instruments
vÉë
No
Yes
No
Yes
No
installation of sensorconnector for wiring harnessmalfunction of sensorfailure of instrument
panel connector for wiring
harness
12V
combination instrument
signal input
sensor
BE-45Body Electric SystemWiping and Washing System
Inspection on Common Trouble
Trouble Possible causes Repairing approaches
Make reparation as required;
Check the washer motor;
Check the brusher switch;
Make reparation as required. Washer has no action The washer hose or nozzle is blocked;
Failure of washer motor;
Failure of washer switch;
Wiring failure.Failure of motor switch;
Check the brusher switch;
Make reparation as required. Brusher has no action at the
intermissive gearFailure of brusher switch;
Wiper or grounding failure;
Check the wiping motor.Failure of brusher motor;
Brusher or grounding failure;
Check the brusher motor;
Make reparation as required. Burn out of brusher fuse;
Failure of brusher switch;
Change the fuse and check whether there
is short circuit;
Check the brusher switch. Brusher cannot move or cannot
return to the stop position
BE-60
Inspection on Common Trouble
Trouble Possible causes Repairing approaches
Burned out fuse Change and check whether there is
short circuit
Wiring failure
Seize-up of electric rocker gear
or mechanical lock
Failure of brush-rocker or lock
out deviceMake reparation as required.
Make reparation as required.
Change
The indicating lamp of electric rocker gear
switch doesnt workWiring failure
Failure of indicating lamp locates
interior side of switchMake reparation as required.
Change
There is no electricity in the Change the cell
remote controller
Both remote controller cannot
control the CCL
Glass cannot raise automatically after the
car door is locked (top SY SJ)Wiring failure
Failure of Control case of CCL
Brush-rocker switch failureMake reparation as required.
Change
Change
Body Electric SystemCCL and Electric rocker Gear System
Electric rocker gears at four
doors dont work
The CCL at four doors dont work Burned out fuse Change and check whether there is
short circuit
The electric rocker gear or
CCL at one
door doesnt work
One remote controller cannot c
ontrol the CCL
Controller box damage Change
BE-63
Trouble Possible causes Repairing approaches Page
Receiver
CD recorderLack of power supply Burned out fuse
Wiring failureChange the fuse and check whether there is
short circuit;
Make reparation as required
Loudspeaker doesnt work Faalure of loudspeaker
Wiring failureChaange the loudspeaker;
Make reparation as required.
Do not read the tape or disc Receiver failure or Change the receiver or CD recorder
CD recorder failure
AM or FM doesnt work Receiver or CD recorder failure Change the receiver or CD recorder
VCD Non-opening of devices Aerial failure
Wiring failure
Main machine failureChange or repair it as required;
Make reparation as required.
Change the main device
Neither image nor sound is
broadcastedFailure of main device;
converter box failure plus disc box
failureMake inspection as required and change
the parts with failure
No image when backing up Wiring failure
Failure of video cameraConduct an inspection as required and
change the parts with failure
FM/TV failure Failure of aerial amplifier
Weak signal from TV station
Make an inspection as required and change
the parts with failure
Screen cannot be turned over Unsuitable main device adjustment
Failure of main deviceAdjust according to the application
instruction;change the main device
Disc box cannot be pushed Failure of disc box Make an inspection as required
outside
Bass speaker doesnt work Wiring failure
Failure of bass speakerMake reparation as required.
Change the bass speaker.
Electric
aerialNon-raising when receiver is
openedWiring failure
Failure of electric aerialMake reparation as required.
Change the electric aerial
Falling seize-up Wiring failure
Failure of electric aerial.Make an inspection as required and change
the parts with failure.BE-64
BE-64
BE-64
BE-65
BE-65
Inspection on Common Trouble
Body Electric SystemAcoustical Equipment System
AC-10Air-conditioning System - Troubleshooting
Troubleshooting
TroubleReparation approachesPage
Lack of cold airNon-pull-in performance of electromagnetic clutch:
(a) Break of ignition switch and fuse;
(b) Trouble of electromagnetic clutch;
(c) Trouble of A/C switch;
(d) Wiring or grounding trouble;
(e) Lack of refrigerant; and
(f) Trouble of pressure switch.
Abnormal operation of compressor:
(a) Looseness or break of driving belt;
(b) Compressor trouble;
Expansion valve trouble;
Systematic leakage;
Liquid tank fusible plug melting or filtering
screen blocking;
Non-work of air blower:
(a) Failure of A/C switch;
(b) Failure of air blower motor, and
(c) Wiring failure.Change the fuse and check to see whether
there is short circuit;
Check the electromagnetic clutch;
Check the A/C switch;
Repair it as requirement;
Check the refrigerant pressure;
Check the pressure switch;
Adjust or change the driving belt;
Check the compressor;
Check the expansion valve;
Conduct lubricating test for the system
Check the liquid tank;
Check the A/C switch;
Check the air blower motor;
Conduct reparation as requirement.
Inconsecutive
cold airElectromagnetic valve slip
Failure of expansion valve;
Wiring or connecting failure;
Over water content in systemCheck the electromagnetic clutch;
Check the expansion valve;
Make reparation as requirement.
Reclaim the water first, then exhaust the
system to vacuum and inflate in the refrigerant.
Cold air occurs in
high-speed conditionBlocking of radiating face of condenser;
Driving belt slip;
Compressor failure;
Insufficient or redundant refrigerant;
Air existing in systemCheck and wash the condenser
Check and change the driving belt;
Check the compressor;
Check the refrigerant quantity;
Vacuumize the system and inflate
the refrigerant;
Insufficient
cold airCondenser blocking;
Driving belt slip;
Electromagnetic clutch failure;
Compressor failure;
Expansion valve failure;
Insufficient or redundant refrigerant;
Air existing in system;
Redundant compressor lubricant;
Liquid tank blockCheck the condenser;
Check and change the driving belt;
Check the electromagnetic clutch;
Check the compressor;
Check the expansion valve;
Check the refrigerant quantity;
Reclaim the air, then vacuumize the sys-
tem and inflate the refrigerant;
Check the compressor lubricant quantity;
Check the liquid tank
Evaporator blocking or frosting
Air leakage in cooling device or air
pipeline;
Air inlet blocking;
Air blower motor failure;Clean the evaporator radiating rib
or filter;
Make reparation as requirement
Make reparation as requirement
Change the air blower motor.
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Possible causes
Page AC-15
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Under-speed cold air