Chery S11 / Chery QQ. Manual - part 68

             

Chery QQ Service Manual                              BCM Computer Control System   

     

 

connecting wire defective 

repair or replace 

None of the power windows 

works 

connecting wire defective 

power window motor 

power window switch 

theftproof computer 

   repair or replace wire

repair or replace 
repair or replace 
repair or replace 

Power window does not lower 

power window switch 

power window motor 

connecting wire defective 

repair or replace 
repair or replace 
repair or replace 

Power window does not rise 

power window switch 

power window motor 

connecting wire defective 

repair or replace 
repair or replace 
repair or replace 

Power window rises slowly 

connecting wire defective 

power window motor 

power window switch 

theftproof computer 

   repair or replace wire

repair or replace 
repair or replace 
repair or replace 

Power window does not 

lowers slowly 

connecting wire defective 

power window motor 

power window switch 

theftproof comupter 

   repair or replace wire

repair or replace 
repair or replace 
repair or replace 

 
 

Ⅴ

. Inspection and Repair of the control device of electric door lock 

1.Description of the operation of central control door lock 

Key                                          Remote controller 

                         

 

 

 

 

All the doors can be operated simultaneously with the key and the remote controller 

All the doors can be locked or unlocked at the driver side door lock with the key. 

While unlocking, secure buttons of all the doors move upward. While locking, secure 

buttons of all the doors move downward. The doors can also be locked by pushing the 

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Chery QQ Service Manual                              BCM Computer Control System   

     

 

secure button down. 

Door lock 

The front doors can be locked and unlocked from outside with the key and can be locked 

from inside with the door handle. 

Before leaving the car, push down the locking rod down and close the door to lock it. 

After entering the car and turning the start-up switch on, if the door is not locked or 

opened within 5min, it will be locked automatically. Once the start-up switch is off and 

the key is pulled out, the door lock will be unlocked automatically.   

Operating mode 

When the driver locks or unlocks the door lock, the door operating device installed on 

the side of driver seat, lock or unlock signal will be sent to the micro switch in the door 

lock. According to the lock or unlock signal sent by the door operating device, The BCM 

computer (theftproof computer) will activate the motor integrated in the door operating 

device. The built-in motor of the door operating device is controlled by the signal on the 

201 terminal of the BCM computer (theftproof computer) to lock and unlock each door 

lock jointly. Or the rotating direction of the door lock motor is changed according to the 

direction of output current of BCM computer (theftproof computer)), whereby the door 

lock will be locked or unlocked through the connecting rod. 

 

 

 

 

 

 

 

 

门锁的组件

  components of the door lock 

20006

 

 

2. 

Inspection and Repair 

of the Central Control Door Lock 

(1) BCM computer (theftproof computer) 

The BCM computer (theftproof computer) is installed in the instrument panel on the left 

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Chery QQ Service Manual                              BCM Computer Control System   

     

 

side of the lower evaporation box. It gets power supply from the secondary cell, and 

receives opening and closing signal from the door lock device of the front left door to 

control the direction of the central door lock device. The BCM computer (theftproof 

computer) is in charge of controlling the central door lock and power window. 

(2) Door lock operating device (driver seat side) 

When the driver opens the front left door from outside, the micro switch inside the door 

lock operating device connects the circuit to the ground or disconnected it from the 

ground, and sends signals to the BCM computer (theftproof computer). When the driver 

opens the front left door from inside, by turning the start-up switch off and pulling the 

key out, the BCM computer (theftproof computer) will unlock the central control door 

lock automatically, or if the door on the driver side is open directly, the central controlled 

door lock will be unlocked. 

(3) Door lock operating device (front passenger side door and rear doors) 

Midget motors are provided in the three door lock operating devices. Both terminals of 

each of these motors receive positive or negative current from the BCM computer 

(theftproof computer), the rotating direction of the motors is changed, and the door locks 

are operated in opening or closing direction through the connecting rods. 

(4) Inspection of the door lock motor 

Malfunction of the door lock motor can be determined by checking the electric resistance. 

Specifically, check the electric resistance on the terminal 1 and 2 of the connector of the 

door lock operating device. If infinity shows, broken coil of the motor can be determined. 

A simple way of inspection is, supply instantaneous (within 0.3s) current to the  

terminal 1 and 2 of the connector of the door lock operating device, the motor should 

rotate; if reverse current is supplied, the motor should rotate in opposite direction. It 

should be noted, that the supply time should be short, otherwise the armature coil may be 

damaged due to overload. 

①

Inspection of the operating of motors 

a、Connect the positive pole (+) to the terminal 1, and the negative pole (-) to the 

terminal 2, check if the door lock connecting rod moves to the “UNLOCK” position 

b、Connect them reversely, check if the door lock connecting rod moves to the 

“LOCK” position. If it is not the case, replace the door lock assembly. 

3. Circuit Diagram 

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Chery QQ Service Manual                              BCM Computer Control System   

     

 

Pages 107-108 show the circuit diagram of power supply of the power 

window 

 

Ⅵ.The structure, Inspection and Repair of the power rearview mirror 

1. Internal rearview mirror 

External appearance of the assembly 

 

 

 

 

 

 

Technical 

parameter

 

No. Parameter 

Criterion 

1 

reflectivity of the mirror 

≥40% 

Angular of upward 

adjustment of the rearview 

mirror 

≥22 

Angular of downward 

adjustment of the rearview 

mirror 

≥28 

Angular of leftward 

adjustment of the rearview 

mirror 

≥30° 

2 

Angular of rightward 

adjustment of the rearview 

mirror 

≥30° 

3 

Angular of adjustment of 

handle 

4°30ˊ 

 

 

 

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