as-t-t022 s11 body electric system

Welcome to the CHERY AUTOMOBILE

S11 Body Electric System

Training Purposes

• To study and learn characteristics of the electric system and circuit of QQ automobiles

• To learn how to troubleshoot the complex circuit by using the circuit diagram

• To strengthen the service skill and improve the service quality of service stations

• To reduce the consumption and enhance the customers’ satisfaction

Progresses in Automobile Technique

Due to the continuous advancement of automobile and engine technique, the automobile and engine have made a rapid progress in the electronic control, informational communication and other aspects under various effects such as social pressure, supporting technique and manufacturers’ self-endeavor. As a result, the automobile is transformed from the past mechanical system to the mechanical & electronic system, which not only improves the performances of automobiles distinctly but also extends the controlling function of automobile sufficiently.

Requirements of Professional Technique

What is accompanying, however, is more and more complicated and also delicate structure and rationale of automobiles and engines. Therefore, it is required that the automobile service technicians should have solid and extensive basis of knowledge and capacity, persist in lifelong study consciously, enhance technical level and assimilatenew knowledge continuously, reinforce professional requirements constantly and prolong their own occupational life.

Circuit Diagnosis FlowStart

Verify the symptom

Reduce the range of trouble causes

Listen to a customer’s complaints

Simulate the symptom

Check the circuit

Repair the circuit

Confirm the normal operation of circuit

End

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Diagnosis Flow

Run the system under all modes. Confirm that the system can function normally under all conditions. Make sure that no new troubles are arisen due to carelessness during the diagnosis and repair process.

Step 6Repair or replace the trouble electrical circuits and units.Step 5

Check the system for twisted wiring, loosened connectors or damaged circuits.Determine the circuits and units that related to the trouble and conduct analysis based on the power supply circuit and harness layout.

Step 4

Collect the suitable diagnosis materials, including:lPower supply electrical circuitslSystem use instructionlCorresponding parts in the repair manuallRefer to repair notificationDetermine from where to start the operation based on the customer’s narration and your mastered knowledge.

Step 3

Run the system; conduct the road test if necessary.Determine the trouble parametersIf fails to reproduce the trouble, please refer to the “trouble simulation test”

Step 2

System symptom, running status (the affection of other components).Repair history record or whether equipped with other accessories after purchase.

HowRoad conditions, elevation, and traffic conditionsWhereDate, time, weather condition, and occurrence frequencyWhenVehicle model, engine, transmission/transmission drive axle and system (such as radio).What

Understand the details of the related symptoms and environment conditions on the occurrence of trouble.The following key information will help the correct analysis:

Step 1InstructionStep

Trouble Simulation Test

Vibration test

Shake lightlyBend lightly

Knock lightly

Maybe the trouble is induced because of the sensitiveness to the electrical load.Turn on all accessories (including air conditioning, rear window defroster, radio and fog light, etc.) before the diagnosis.

Electrical load test

Rear window defroster

Lighting switch

Open circuitWhen a certain part is on-state in the circuit, it is an open circuit.

Short circuit

There are two forms of short-circuit.

Short-circuit caused by earthing

Short-circuit caused by connection Normal resistance is changed due to the contact of one circuit with another circuit.

A wire contacts with the earth wire and the circuit is earthed.

Check an open circuit

Fusebox

Battery (+) Open circuit

(Voltage inspection)

Open circuit Open circuit

(On-state inspection)

Normally-close relay Solenoid valve

Check a short circuit

Ignition switch at “ON” or “START”

Battery (+) side

Fusebox(Voltage inspection)

Short circuit

(Resistance inspection)

Short circuit Short circuit

Relay Solenoid valve

Training Contents

Instrument Lighting

ABS System

A/C System

Air Bag

Radio

Theft-deterrent Central Control System

Rear-view Mirror and Wiper

Starting & Charging System


Characteristics of the Starting & Charging System

TCM Troubleshooting

倒车灯

AMT Version

3

2

检查S/B5，S/B6保险丝，所有搭铁

将30#与87#短接看能否启动如能启动则继电器坏了直接给启动机加电启动点火开关1#有无常电启动时

2#与4#应有12V电源否则开关损坏

检查85#到TCM42#线路

Inspection and detection on the TCM module 1 Inspect and detect the brake lamp switch and circuit2 Inspect 87# to TCM2#3 Inspect the TCM power earth4 If Ok, the TCM is failed.

Backup light

Theft-deterrent moduleTCM42#

TCM76

Ignition switch

Batte

ry

Starter

Instrument 1/4

Instrument 1/2

Starting & C

harging

Ignition switch

Bat

tery

Igni

tion

switc

h Starter

To theft-deterrent computer 2

To theft-deterrent computer 3

To fuse F1

No.

Generator

Position

Body Transmission Battery below

Charging

• 保险丝问题St

arte

r rel

ay

To in

strum

ent

16#

To th

eft-d

eter

rent

m

odul

e A

2

To th

eft-d

eter

rent

m

odul

e A

3

To backup lamp switch

To odometer sensor

To

Starter

Instrument 1/2

Instrument 1/4

Instrument 1/9

To TCU76#

Position of Starter Relay

Wiper relay

See the bottom left angle for the fuse instructions

Gearshift hydraulic

pump relay

Turn signal lamp relay

Starter relay

Fuse clip

Thinking

• Startup command and implementation process of the motor

Body Electric System of Chery QQ

Instrument Lighting

ABS System

A/C System

Air Bag

Radio




Electric Rear-view Mirror

Circuit Principle

Movement Analysis

Practice in Analytical Ability

Control Panel

3 421

F28＋

搭铁

Left front A/4

Left front A/11 Left front A/5

Left front A/10

Right front B/3 Right front B/6

Right front B/9

To d

imm

er sw

itch

Elec

tric

rear

-vie

w

mirr

or sw

itch

Earth

Switch Power 1 Power 2

Earth

Electric wiper

Operating Flow

Intermittent Circuit Analysis

Circuit Troubleshooting

AMT

ElectricityFront

washing Low speed

Front return

High speed

Rear washing

Front 2/17

Rear wiping Electricity

Front 2/8Front 2/22

Front 2/23Front 2/19

Front 2/18

Front 2/22 Instrument 4/2 Instrument 4/5

Electricity

Fron

t wip

er sw

itch

Rear

wip

er sw

itch

Backup B/3 Backup B/2

Fron

t was

her p

ump

Front wiper motor

Rear wiper motor

Rea

r was

her p

ump

Wip

er re

lay

Clearance C

ircuit

Reset C

ircuit


Instrument Lighting

ABS System

A/C System

Air Bag

Radio




Introduction to ISU System

• Introduction to General System• Troubleshooting for Central Control Lock System• Troubleshooting for Courtesy Lamp System• Troubleshooting for Window Regulator System• Troubleshooting for theft-deterrent Control

Module System

OutlineCharacteristics

The automobile theft-deterrent control system integrates the theft-deterrent device, the electric doors and windows as well as the central lock control module to perform the centralized monitoring. When the lock button on the remote control is pressed, the central control lock system is locked into the lock catch. When the system enters an alarm state, the glass windows of devices and doors will rise automatically to avoid that the user forgets to close them, which will facilitate users’ use so that they need not worry about rain, wind and theft, etc.

Theft-deterrent by remote control• This theft-deterrent by remote control adopts the dual-key style: one key for deterrent setting, the

other for release;• deterrent-setting state: When the first key on the remote control is pressed, the automobile clearance

lamp flickers once and the central control lock is locked automatically. At the same time, the engine is locked; the LED flickers slowly; and the display system is in a deterrent state. If the system is triggered, the clearance lamp will flicker and the alarm speaker will give an alarm;

• Release of deterrent setting: When the second key on the remote control is pressed, the clearance lamp flickers twice and the central control lock is unlocked. At the same time, the engine lock is released and the LED indicator blacks out;

• Deterrent release by two steps: When the system is in a triggered state, the alarm sound can stop by pressing any key on the remote control, with the system in a deterrent state and the door still locked; if the system receives any further invasion signal, the alarm will be given out after a short pause. To release the deterrent totally, the second key should be pressed once immediately after the deterrent is released for the first time;

Theft-deterrent Functions by Remote Control

Theft-deterrent by remote control• This theft-deterrent by remote control adopts the dual-key style: one key for

deterrent setting, the other for release;• deterrent-setting state: When the first key on the remote control is pressed, the

automobile clearance lamp flickers once and the central control lock is locked automatically. At the same time, the engine is locked; the LED flickers slowly; and the display system is in a deterrent state. If the system is triggered, the clearance lamp will flicker and the alarm speaker will give an alarm;

• Release of deterrent setting: When the second key on the remote control is pressed, the clearance lamp flickers twice and the central control lock is unlocked. At the same time, the engine lock is released and the LED indicator blacks out;

• Deterrent release by two steps: When the system is in a triggered state, the alarm sound can be stopped by pressing any key on the remote control, with the system in a deterrent state and the door still locked; if the system receives any further invasion signal, the alarm will be given out after a short pause. To release the deterrent totally, the second key should be pressed once immediately after the deterrent is released for the first time;

Functions• Theft-deterrent again: If both door and ignition switch are not

turned on within 30 seconds after the deterrent is released, the theft-deterrent device will restore its deterrent state automatically and lock the door;

• Auto-locking/unlocking function: The door will be locked automatically 5 seconds later after the ignition switch is turned on and be unlocked automatically after the ignition switch is turned off. If the door is opened within 5 seconds after the ignition switch is turned on, the system will not be locked automatically in order to avoid that the driver is kept out of his/her automobile;

• Window closing by remote control: If the glass windows are not closed at the deterrent state, the glass window regulator will function automatically to lift the glass windows to the ceiling in turn for work;

To double switch 6#

Left

front

win

dow

switc

h

Left front B/2 Left front B/7 Left front B/3

Left front B/9 Left front B/8 Left front B/6

Left front B/3

Left front B/4 Left rear A/3 Right front A/6

Right front A/2

Right rear A/3

Left rear A/1

Left rear A/8 Right front A/5

Right rear A/1

Right rear A/2

Right rear B/5

Right rear B/6

Left front A/1

Left front A/2

Right front B/4

Right front B/10

Left rear B/5

Left rear B/6


Left front A/6

Left front A/7

Left front A/13 Right front B/1

Right front B/5

Left rear A/2 Left rear A/1 Right rear A/2

Right rear A/1

To st

arte

r rel

ay

Locking by high electric potential Unlocking by high electric potential Theft-deterrent control

To st

arte

r pul

l-in

win

ding

Thef

t-det

erre

nt in

dica

tor

Ala

rm sp

eake

r Le

ft fro

nt d

oor

lock

Righ

t fro

nt d

oor

lock

Left

rear

doo

r lo

ck

Righ

t rea

r doo

r lo

ck

Left

front

win

dow

mot

or

Rig

ht fr

ont w

indo

w m

otor

Left

rear

win

dow

mot

or

Rig

ht re

ar w

indo

w m

otor

To le

ft tu

rn si

gnal

lam

p

To ri

ght t

urn

sign

al la

mp

Thef

t-det

erre

nt d

evic

e B

acku

p

Front 2/12

Lugg

age

com

partm

ent s

witc

h

Left

rear

doo

r sw

itch

Rig

ht re

ar d

oor s

witc

h

Left

front

doo

r sw

itch

Rig

ht fr

ont d

oor s

witc

h

Backup door B/4

Rea

r lug

gage

com

partm

ent l

amp

Cei

ling

lam

p

Left

rear

win

dow

switc

h

Rig

ht re

ar w

indo

w sw

itch

Rad

io A

3 D

iagn

ostic

con

nect

or 1

6

To dimmer switch (brown-white line)

Rig

ht fr

ont

win

dow

switc

h

Instrument 3/10 Instrument 3/5


Instrument 4/11 Front 2/5

Instrument 4/9 Instrument3/20 Instrument3/15 Instrument3/19

Instrument 4/8 Instrument 3/18 Instrument 3/15 Instrument 3/21

Instrument 4/12

Instrument 3/25


Instrument 3/12


Instrument 3/14

Instrument 3/26

Antenna

To double switch 6#

Left

fron

t win

dow

sw

itch

Rig

ht fr

ont w

indo

w s

witc

h

Left front B/2 Left front B/7

Left front B/3

Right front A/2 Left rear A/1

Left

Rea

r win

dow

sw

itch

Rig

ht re

ar w

indo

w s

witc

h

Right rear A/1

Instrument 3/14

Left front B/4

Right front A/6

Left rear A/3 Right rear A/3

Left front B/6




Instrument 3/12

Instrument 3/8

Instrument 3/13

Right rear A/2

Instrument 3/9



To st

arte

r rel

ay

Locking by high electric potential

Unlocking by high electric potential

Theft-deterrent control

Antenna

To double switch 6#

Left

fron

t win

dow

sw

itch

Rig

ht fr

ont w

indo

w s

witc

h


Left front B/3


Left

Rea

r win

dow

sw

itch

Rig

ht re

ar w

indo

w s

witc

h

Right rear A/1

Instrument 3/14

Left front B/4

Right front A/6

Left rear A/3 Right rear A/3

Left front B/6




Instrument 3/12

Instrument 3/8

Instrument 3/13

Right rear A/2

Instrument 3/9


Instrument 3/5

To st

arte

r rel

ay

Locking by high electric potential


Theft-deterrent control

Antenna

Instrument 3/10

To st

arte

r rel

ay

Left

fron

t win

dow

sw

itch

To st

arte

r pul

l-in

win

ding

Thef

t-det

erre

nt

indi

cato

r

Ala

rm sp

eake

r Le

ft fro

nt

door

lock

Righ

t fro

nt d

oor l

ock

Left

rear

doo

r loc

k

Rig

ht re

ar d

oor l

ock

Theft-deterrent controlLocking by high electric potential


Left front A/3 Left front A/7 Instrument 3/10 Instrument 3/5

Instrument 3/17 Instrument 1/4 Front 2/26

Left front A/6

Left front A/13

Left front A/7

Right front B/1

Right front B/6

Instrument 4/11

Left rear A/2 Left rear A/1 Right rear A/2

Right rear A/1


Left front B/9

Antenna

Troubles in Door Contact Switch

• If the alarm speaker is always sounding and the turn signal lamp is always flickering, it indicates that the theft-deterrent is triggered. In this case, please check whether the earthing signals of left front, left rear, right front and right rear door switches have been input into the No. B14 terminal of the theft-deterrent computer, whether the earthing signals of door switch of luggage boot have been input into the No. B11 terminal of the theft-deterrent computer, and whether all switches can be turned on/off normally; moreover, please inspect and repair the place where a trouble occurs. If the switches and connection are Ok, please replace the theft-deterrent computer.

Remote Control SettingTurn on the ignition switch

Insert the key into the seat hole

Turn off the ignition switch

Turn on the ignition switch



Within 7 seconds

The indicator flickers fleetly for 3 seconds

The indicator blacks out

The indicator lights again

Wait for the indicator to black out



Press the locking key on the remote control

Press another locking key on the remote control

The theft-deterrent indicator will light once at pressing

The theft-deterrent indicator will light once at pressing

Remote Control Setting 2


Insert the key into the seat hole





Within 7 seconds

The indicator flickers fleetly for 3 seconds

The indicator blacks out

The indicator lights again

Wait for the indicator to black out


Press the locking key on the remote control

Press the key until the turn signal lamp flickers for a successful matching

Problem DetectionIs it attributed to the damaged remote control or the module?

Is the failed central control lock is attributed to the left front cotter or the module?

1 Test the remote control first To replace it for a mechanical damageTo match (in two kinds of methods)If it is still failed, please inspect and detect the power earth of fuse moduleIf it is still failed (check whether other functions of the module are normal), please replace the module

Pull the pull rod by hand to test its flexibility and control it with the remote control. If both are Ok, please inspect and detect the triggering connection from the cotter to the module. If the connection is normal, the problem consists in the cotter.

If it is normal to pull the pull rod but it is failed to control it with the remote control, please check whether the remote control is normal (refer to the previous steps); otherwise, replace the module.

Thinking

• How does the wiper blade arm realize its return

• Which aspects the difficulties in regulating the glass window should be considered from


Instrument Lighting

ABS System

A/C System

Air Bag

Radio




Digital Radio

Right front B/7


Instrument Lighting

ABS System

A/C System

Air Bag

Radio




Function----Auxiliary Safety

Outline

First impactSecond impact. The injury to the driver and the passenger is mainly induced by the second impact. The automobile is equipped with the seat belt, the air bag and other passive protective devices in order to reduce or avoid the injury to the driver and the passenger.

Battery ALDL connector Air bag Alarm

indicator lamp

Spare voltage circuit

Voltage self-regulation circuit

Voltage sensor circuit

Microprocessor

Diagnostic coupling circuit

Impact sensor

Alarm indicator lamp

Air bag ignition circuit

Safety sensor

Air bag components for driver

Diagnosis Diagnosis

Air bag components

for passenger

Air Bag System

• Functions• System Components• Frequent Problems• Notes on Hairspring

Installation


Instrument Lighting

ABS System

A/C System

Air Bag

Radio




A/C Electric Control System

Structural Elements

Analyses of Movement Implementation

Troubleshooting

Compressor

Evaporator

Expansion valveDrying bottle/collector

Fan

Condenser

Conditions of Compressor Operation

• 1 The A/C switch is pressed to operate in AC• 2 The blower is in a operating state• 3 The low-pressure switch of refrigeration

system is on• 4 Environmental temperature is above 0℃• 5 The engine speed is more than 600rpm

On

Off

On

Off

Structural Elements

Ignition device

Blower

motor

Defroster Rear defrost

switch

Running relay

Main relay

Blower switch

Speeder resistance

Battery

Electronic fan Extra high

relay

A/C switch

thermistor

Earth

Magnetic clutch

Pressure switch

A/C relay

Resistance Extra low

relay

空调

ECU

1 2 3 4

Pressure switch

19 32

42

17

Evaporative temperature

39MARELLI

Running relay

To dimm

er sw

itch

A/C switch

Blow

er Defrost sw

itch

Speeder resistance

Earth

Defrost resistance

SIMENES

Run

ning

rela

y To d

imm

er

switc

h

Spee

der r

esis

tanc

e

To d

imm

er s

witc

h (b

row

n-w

hite

line

)

A/C switch

Blower motor

Rheostat

To

Earth Low High

Off

Medium 1

Medium 2

Low

Blow

er sw

itch

Instrument C/15#

Instrument C/1

Instrument 2#

Instrument

Conditions of A/C Interruption

• 1 Trouble in the throttle position sensor• 2 Trouble in the speed sensor• 3 At the time of large engine load• 4 Trouble in the evaporator temperature sensor• 5 The evaporator temperature of less than 1.5°C• 6 Excessive engine speed• 7 The coolant temperature of more than 108°C• 8 Urgent acceleration• 9 Closed high-pressure switch

Unstable A/C Idle SpeedYes Eliminate the displayed

trouble 1 Turn the ignition switch to “ON”. Use the trouble

diagnostic tester to check whether any trouble information record exists. No Next step

Yes Next step 2 Turn the A/C switch on and connect an adaptor between the ECU and the wire harness. Subsequently, measure whether any signal is input into the No.50 and 58 (A/C switch) pins of the ECU.

No Inspect and repair the A/C circuit

Yes Next step 3 Check whether all the pressure of A/C system, the magnetic clutch of compressor and the A/C pump are normal.

No Repair or replace abnormal one

Yes Next step 4 Turn the ignition switch to “ON”. Check whether the voltage of No.19, 20, 35, 36 (output to the idle actuator) pins of the ECU is normal.

No Inspect the control circuit

Yes Repair or replace the step motor

5 Disassemble the step motor to check whether it is locked or run slowly.

No Next step

Yes Replace the ECU 6 Start the engine and turn on the A/C, and then use the trouble diagnostic tester to check whether the idle actuator operates normally at that time through the step amount of the step motor. (The normal step amount will be provided additionally)

No Replace the idle actuator

ECU

BOSCH

Run

ning

rela

y

To d

imm

er

switc

h

Spee

der r

esis

tanc

e

To d

imm

er s

witc

h (b

row

n-w

hite

line

)

A/C switch

Blower motor

Rheostat

To

Earth Low High

Off

Medium 1

Medium 2

Low

Blow

er sw

itch

Instrument C/16# Instrument C/1

To main relay power

A/C

rela

y

Pres

sure

switc

h

Com

pres

sor

Coolant temperature sensor

Absolute pressure sensor

Throttle position sensor

Main relay

Instrument 23

Extra high relay

Extra low

relay

A/C

relay

Vac

uum

val

ve

Com

pressor

Electronic fan

Resistance

Electronic fan

Fuel

inje

ctor

1

Fuel

inje

ctor

2

Fuel

inje

ctor

3

To A

/C s

witc

h/3

Evaporatortemperature sensor

风扇不转

压力开关

19 32

42

17

蒸发温度

39

风扇不转

19 32

42

17

39

压力开关

19 32

42

17

蒸发温度

39


Instrument Lighting

ABS System

A/C System

Air Bag

Radio




ABS System

• Concept & Function • System Outline• Structural Principle• Repair

Concept & Function

ABS, the abbreviation for “Anti-lock Brake System”, is composed of such main components as hydraulic assembly, computer and wheel speed sensor besides the components of traditional brake system. Its function is to ensure that the automobile can obtain an optimum stopping distance and have an excellent brake stability as well as steering performance despite the road condition.

System Outline

ABS warning lamp

ABS bump motorSwitch of brake lamp

Right brake lamp

Left brake lamp

Left rear wheel speed sensor

Left front wheel speed sensor

ABS hydraulic control unit

ABS electronic control unit

Sensor

Switch of brake lamp

ABS electronic control unit

ABS Hydraulic bump motor and low-pressure energy accumulatorActuator

ABS hydraulic control unit

ABS warning lamp

Wheel speed sensor

Trouble diagnostic socket

工作过程Low-pressure energy accumulator

Suction valve

Pressure valve

Hydraulic pump

Master cylinder Booster

Normally opened valve Normally closed valve

Wheel brake

Stage of pressure

formation

Brake pressure

Wheel speed

Time T

Low-pressure energy accumulator

Suction valve

Pressure valve

Hydraulic pump



Wheel brake

Stage of pressure maintenance

Brake pressure

Wheel speed

Time T


Suction valve

Pressure valve

Hydraulic pump



Wheel brake

Stage of pressure reduction

Brake pressure

Wheel speed

Time T


Suction valve

Pressure valve

Hydraulic pump

Master cylinder

Booster


Wheel brake

Stage of pressure increase

Brake pressure

Wheel speed

Time T

Notes

• Control Unit Code----01901• Jumper (12-pin, 14-pin)

To d

iagn

ostic

con

nect

or 7＃

Hig

h m

ount

ed b

rake

lam

p

Left

brak

e la

mp

Left

fron

t

Righ

t fro

nt

Left

rear

Left

rear

Righ

t bra

ke la

mp

Backup 1/2

Front 3/1 To

ECU 18#

Instrument 4/14

To Instrument

14#

Instrument 3/6

Instrument 1/8 Front 3/3

Front 3/2

To ECU 69#

To ECU 35#

Brak

e sw

itch

Front 5/3

Front 5/4

Front 5/1

Front 5/2


Instrument Lighting

ABS System

A/C System

Air Bag

Radio




Instruments

Schematic Chart of Modern Automobile Power Control

Battery

Control system

Control circuit

Electromagnetic field

Restraint Systems

Power circuit

Electric unit

Calibration

• These instruments are calibrated by working staff or video cameras in order to meet users’requirements and the VDO Standard. On-line programme can be performed for instruments to save the calibration data and to correct any error induced by the pointer position and the parameters of elements.

仪表

To c

eilin

g la

mp

fuse

F3

0

To headlamp switch/9

Speedometer

(Memory of clocks and instruments)

Bra

ke fl

uid

indi

cato

r lam

p

Fuel

gau

ge

Wat

er te

mpe

ratu

re

met

er

Tach

omet

er

Rec

harg

e in

dica

tor l

amp

Han

d br

ake

indi

cato

r lam

p

AB

S in

dica

tor l

amp

Seat

bel

t sw

itch

indi

cato

r lam

p

Oil

pres

sure

Engi

ne in

spec

tion

indi

cato

r lam

p

Ligh

ting

indi

cato

r lam

p

Air

bag

indi

cato

r lam

p

To c

ombi

natio

n sw

itch/

12

To fr

ont f

og li

ght

switc

h/2

Dim

mer

sw

itch/

3

Fron

t fog

ligh

t in

dica

tor l

amp

To st

eerin

g sw

itch

To st

eerin

g sw

itch

Hig

h be

am

indi

cato

r lam

p

Left

turn

in

dica

tor l

amp

Rig

ht tu

rn

indi

cato

r lam

p

Instr

umen

t lig

htin

g la

mp

Instr

umen

t

To fu

se F

17

To E

CU

12

(out

of u

se te

mpo

raril

y)

To

Odo

met

er s

enso

r

Wat

er te

mpe

ratu

re se

nsor

Fuel

sens

or

Bra

ke fl

uid

leve

l sw

itch

Han

d br

ake

switc

h

To g

ener

ator

D+

Oil

pres

sure

sw

itch

Seat

bel

t sw

itch

To A

BS

cont

rol

To a

ir ba

g

To E

CU

23

To h

eadl

amp

switc

h/1

Instrument A/1 Instrument C/19#

Instrument A/6

Instrument C/12#

Instrument A/19

Instrument C/15

Instrument A/18

Troubles• Trouble phenomena• After the engine runs, the water temperature rises, but the pointer of water

temperature indicator doesn't give any indication.• 2) Trouble causes• (1) Damaged water temperature indicator• (2) Failed water temperature sensor• (3) Open circuit of water temperature indicator• (4) Trouble in the instrument unit

• Troubleshooting• Pull out the water temperature sensor connector to check whether the circuit

is open between the jack of water temperature sensor connector (yellow/red wire) and the jack 23 of combination instrument connector. If the above circuit is normal, please check whether the yellow/red wire of water temperature sensor connector is electriferous. In case it is electriferous, it indicates that the water temperature sensor is damaged; if it is not electriferous, it indicates that there is a trouble in the water temperature indicator itself or the instrument unit.

Definition of CircuitOpen circuit: The current circuit is interrupted at a certain point

in the circuit. After an open circuit occurs, one or more electric loads can not function any longer in the circuit.

Short circuit: The load is bypassed accidentally. The current always pass through the circuit with the smallest resistance, soa short circuit will induce higher current so as to heat the protective devices or the connecting wires in the circuit

Earth: The earth state is similar to the short circuit state under which one loaded current is bypassed accidentally in the circuit. The difference consists in the direct connection with the power cathode via the frame earth circuit at the time of earth.

Lighting

Night lamp adjusting switch (brown-white line)

Fog

light

switc

h

Off

Front fog light switch ON

Rear fog light switch ON

Clearance lamp

Clearance lamp

Head lamp

Head lamp Electricity Electricity

To fuse F20 To fuse F24

Low beam

Passing Electricity Low beam

High beam

High beam

Passing

(nonexistent temporarily)

Night lamp adjusting switch

Headlamp adjusting switch

To instrument brightnessA/C control panelRadio brightnessAnd all kinds of switch brightness(lamp adjusting switch brown-white line)

To in

stru

men

t 6

Left

rear

fo

g lig

ht

Fron

t fog

ligh

t rel

ay

Rea

r fog

ligh

t rel

ay

Rig

ht re

ar

fog

light

Left

fron

t fo

g lig

ht

Rig

ht fr

ont

fog

light

Left

clea

ranc

e la

mp

Left

rear

tail

lam

p

Rig

ht c

lear

ance

lam

p

Lice

nse

lam

p

Hig

h be

am re

lay

Left

head

lam

p

Rig

ht re

ar ta

il la

mp

Rig

ht h

eadl

amp

Low

bea

m re

lay

To in

stru

men

t 25

Beam

cha

ngin

g sw

itch

To in

stru

men

t 28

Hea

dlam

p sw

itch

Integration block Green Green

Instrument A/8 Instrument A/9

Instrument C/4

Instrument C/21#

Instrument C/16# Instrument C/4#

Neither Front Fog Light Nor Rear One Lights Up

Trouble PhenomenaUnder the situation that the lighting switch is at gear 2,

the front fog light doesn’t light up when the fog light switch is turned on at gear 1; and neither front fog light nor rear one lights up when the fog light switch is turned on at gear 2.

Trouble causes① Burnt-out fuse in the relay board② Damaged fog light relay③Trouble in the lighting switch

Nig

ht la

mp

Module A24 142b/0.850

Steering switch Flasher relay

Alarm switch

Module A25

Module A13

Left

rear

co

mbi

natio

n la

mp

Left

side

turn

si

gnal

lam

p

Left

fron

t co

mbi

natio

n la

mp

Left

turn

in

stru

men

t la

mp

Rig

ht re

ar

com

bina

tion

lam

p

Rig

ht si

de

turn

sign

al

lam

p

Rig

ht tu

rn

inst

rum

ent

lam

p

Rig

ht fr

ont

turn

sign

al

lam

p

Conclusion

• Through the specific analyses of the circuit of all Chery S11 models, we have learnt and mastered the thought and method to analyze the electric system as well as the circuit system diagram, and furthermore, we have practiced and grasped the troubleshooting flow, comprehended the function and significance of each step in the maintenance & diagnosis flow and been proficient in application.

as-t-t022 s11 body electric system

Documents

system symptom

occurrence of trouble

circuit diagram

complex circuit

mechanical electronic

circuit diagnosis flowstart

past mechanical system

trouble electrical circuits