Chery QQ6 (S21) / S12LHD. Manual — part 55

3. Engine’s Anti-Theft System . . . . . . . . . . . . . . . . . . . . . . 28

4. A/C and Defrost Systems . . . . . . . . . . . . . . . . . . . . . . . 29

5. Horn, Backup Lamp, Cigaretter Lighter, Ceiling Lamp and Luggage Boot Light . . 30

6. Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 31

7. Front/Rear Wiper . . . . . . . . . . . . . . . . . . . . . . . . . . 32

8. Turn Signal Lamp System. . . . . . . . . . . . . . . . . . . . . . ... 33

9. Air Bag. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

10. Instrument System . . . . . . . . . . . . . . . . . . . . . . . . . 35

11. Engine’s Electronic Fuel Injection System . . . . . . . . . . . . . . . ... 36

12. BCM system. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 37

Chapter One Control Principle of Some Systems

I. Control Principle of Starting System

1. Starting System

When the ignition switch is turned to ST position, the pull-in winding of the starter powers on, and

then the starting gear of stater motor is pushed to and engaged with the gear of flywheel. At the

same time, when the gears engage, the contact on the pull-in winding works and connects the

power supply from the battery to the starter motor so as to turn the motor and start up the engine.

When the ignition key returns back to the IG position, the holding coil of the starter powers off,

and under the action of spring force of the gear the motor disengages from the flywheel and the

flywheel of starter motor disconnects at the same time. The starting signal is transmitted to BCM

at the same time. The BCM utilizes the starting signal to determine that the system is in the

starting condition. In this case, the BCM will stop the action of motor of window glass regulator

so as to ensure that there is electric engergy enough to be supplied to starter motor.

2. Charging System

When the ignition switch is in IG position, the power supply from the ignition switch F17 is used

to excite the generator so as to ensure that it can generate electric power during the generator is

A t B o d y

A t
T r a n s m i s s i o n

I g n i t i o n
S w i t c h

B a t t e r y

S t a r t e r

G e n e r a t o r

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15

15 a

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I g n i t i o n S w i t c h

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operating. When the generator itself can generate electric power, the system will switch to the

self-excitation mode. In addition, when the generator is generating electric power, it gives a signal

to the relevant instrument via the D+ terminal. After the instrument receive the signal from the

generator, the battery indicator on the instrument will be extinguished.

3. Troubleshooting and Elimination

3.1. The starter not operate, low power output or its fuse burnout

Not operate: When the key is in starting position, if the sound of action of pull-in winding can be

heard while the motor doesn’t operate, this may be caused due to the battery no power output,

contact in pull-in winding failure or starter ground poor.

Low power output: The starter can operate while with low power output. The cause may be low

power output of battery, or high resistance of engine mechanical parts.

Fuse burnout: If the fuse burns out frequently when starting, it may be caused due to the starter

ground poor, wire connection poor or starter interior and engine interior resistance overhigh.

3.2. Generator not work or low power output

Generator not work: Generator’s not working may make an influence on many systems, and also

result that the battery is used out rapidly. The cause to result the generator doesn’t work may be

the exciting circuit work poor, and also may be the rotor, carbon brush or rectification regulator

inside generator failure. Of course, the generator is now unallowable to be repaired. If the trouble

is caused due to the generator problem, please replace the generator assy..

Power output low or overhigh: When the generator’s power output is low, it may result that the

system voltage is low and many systems fail to work normally. For the vehicle equipped with ABS

system, the ABS system is very sensitive to the power output of generator. In case that the power

output is low, the system immediately changes to the failure mode. The main cause to result the

low power output may be the reguator inside the generator work poor or generator’s belt loose and

etc. The power output overhigh generally means that the voltage is overhigh, which easily

damages the electical devices. This is a very dangerous failure which may result the electrical

harness catches a fire. The generator voltage overhigh is mainly caused due to the regulating

circuit inside the generator work poor.

II. BCM Control

1. Ceiling Lamp Control

l When any door opens, the ceiling lamp lights automatically, and then extighuishes 15

minutes later after the door opens.

l The ignition switch is placed to OFF position, and, 8s later after all four doors close, the

ceiling lamp gradually extinguishes, with duration of 2s.

l During the ceiling lamp delays 8s, if the ignition switch changes OFF position to ON

position, the ceiling lamp extinguishes immediately.

l If the ignition switch is in ON position and all four doors close, after any door opens and

then closes, the ceiling lamp immediately extinguishes without time delay.

l When all four doors close and the ceiling lamp lights, press down the LOCK button on

the remote controller and then the lamp immediately extinguishes.

l Press the UNLOCK button once, then the ceiling lamp lights and keeps lighting for 8s,

and the lamp extinguishes slowly within the subsequent 2 s.

Note: When the switch of ceiling lamp is placed to the controlled position, the ceiling lamp control

function is available.

2. Window Glass UP/DOWN Function

l The electric window control is allowable only when the ignition switch is in ON position,

or only within 1 minute after the ignition key changes from ON to OFF, otherwise, the

electric window control is prohibited.

l Temporarily stop the lifting of window glass when starting
l Automatic/manual control

Manual control UP: If the driver-side door or passenger-side door window UP switch is

pulled up, the window will be driven by a motor and lift.

Note: Without the automatic window lift function, only with the manual lift function).

Automatic/manual DOWN: If the switch input time t < 300 ms, the window will

aumatically fall down. When t is greater than or equal to 300 ms, the window will

manually fall down.

l Press the LOCK pushbutton for 2s every time to remote control the lifting of window

glass, and releasae the pushbutton to stop the lifting of window glass.

3. Central Door Lock

l The front left door key independently control the unlocking/locking of the central door

lock.