Chery B11. Manual - part 231

 

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Chery B11. Manual - part 231

 

 

   

Chery·Maintenance Manual for Oriental Son

   

Automatic Transmission 

Checking Sequence 14 
Poor acceleration 

Possible cause 

Acceleration ability is poor even if the car is 
geared down during traveling. The reason is 
possibly trouble in engine, brake or clutch.  

Engine trouble 
Clutch or brake trouble 

 
 
 
 
 

 
 

 
 
Checking Sequence 15 

ibration 

Possible cause 

Check the engine 
Check the ignition system, 
fuel system and main 
machine sy tem

Repair, replace

s

 

 
 

V

There is vibration during constant-speed 
traveling or acceleration/deceleration at highest 

ear. In that case, the reason is possibly 

normal pressure of damp clutch or trouble in 

engine, damp clutch control solenoid valve, 
hydraulic torque converter or valve body.  

Abnormal pressure of damp clutch 
Engine trouble 
Damp clutch control solenoid valve trouble 
Hydraulic torque converter trouble 
Valve body trouble 
 

g
ab

 
 

 

 
 
 
 
 
 
 
 
 
 

 
 
检查顺序 16 
 

Checking Sequence 16 

 
 
 

 

 

Check the brake or clutch 
Check if there are any 
surface burns, damages of 
piston seals and interference 
by the jacket. 

Norma

Abnormal

MUT-Ⅱ Actuator test 
Serial No. 6 damp clutch control 
solenoid valve 
Normal: actuation noise can be 
heard

Replace damp clutch control solenoid 
valve

Does the same problem occur 
after the oil temperature sensor is 
detached?

Check the engine 
Check the control system, ignition 
system, fuel system and main machine 
system

Oil pressure test (refer to Page 23-
51) 
Measure damp clutch pressure  
Standard value: refer to Page 23-
52

Disassemble, clean and reassemble the 
valve body  
Pay special attention to loosened bolts and 
damaged O-rings and valve body 
Replace the valve body assembly in the 
case of damage that can’t be repaired 

Replace hydraulic torque 
converter assembly 

Abnormal 

Norma

No 

Abnormal

Yes 

Normal 

92 

   

Chery·Maintenance Manual for Oriental Son

   

Automatic Transmission 

Manual-gear-shifting-protective switchgear 

Possible cause 

system 

The reason is possibly trouble in manual-gear-
shifting-protective switchgear circuit, ignition 
switch or A/T-ECU.  

Manual-gear-shifting-protective switch trouble 
Ignition switch trouble 
Connector switch 
A/T-ECU trouble 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
Checking Sequence 18 

le speed position switchgear system 

Possible cause 

 

 

Id

The reason is possibly trouble in idle speed 

osition switch or A/T-ECU.  

Idle speed position switch trouble 
Connector trouble 
A/T-ECU trouble 

p

 
 
 
 
 
 
 
 
 
 
 

Check the manual-gear-shifting-
protective switch (refer to Page 23-45)

Check the voltage of manual-gear-
shifti

ective switch connector 

B-72 
Detach the connector and measure 
voltage between wiring side Terminal 
8 and ground circuit 

ng-prot

Normal: storage battery voltage 

Check the following 
connectors: C-49, C-
56, C-83, C-131, C-
134

Check the following connectors 
B-72, C-30

 

Check the electric wiring 
Between manual-gear-
shifting-protective switch 
and medium connector 
Between medium 
connector and the 
ignition switch 

Check the electric wiring 
Between manual-gear-shifting-
protective switch and A/T-ECU 
connector

Check fault symptoms 

Check the ignition switch 

Check fault symptoms 

Replace A/T-ECU 

Abnormal

Normal 

Normal 

Abnormal

Abnorm l 

a

Normal 

Normal 

Abnormal

Abnormal 

Abnormal

Abnormal 

Repair

Repair

Repair

Replace 

Repair

Check the idle speed position switch 

Replace the throttle position 
sensor 

Check the following connectors: 
B-07 B-29 B-47

Check electric wiring 
Bad contact between idle speed 
position and A/T-ECU

Check fault symptoms 

Replace A/T-ECU 

Abnormal

Abnormal

Repair

Repair

Abnormal

Normal 

Normal 

Normal 

93 

   

Chery·Maintenance Manual for Oriental Son

   

Automatic Transmission 

Checking Sequence 19 
Double pressure switchgear system 

Possible cause 

The reason is possibly trouble in double 
pressure switch circuit or bad contact of A/T-
ECU 

ouble 

A/C system trouble 
A/T-ECU trouble 

Double pressure switch tr
Connector trouble 

 
 
 
 

 
 

 
 
 
 
 

 
 
 

 
 
 
 
 

 
 
 
 
 
 

 
 
 
 
 
Checking Sequence 20 

 
 
 

 
 
 

 

Check the double 
pressure switch 

Check the voltage 
between A/T-ECU and 
connector C-28 
Detach the connector 
and check the wiring 
side 
Ignition switch: ON 
A/C switch: ON 
Voltage between 
Terminal 10 and 
ground ci

rcui

Normal: storage 
battery vo

ltag

Check A/C system 

Check the following 
connectors: A-35, 
C-14, C-28, C-67, 
C-116 

Check fault symptoms

Check A/C system 

Replace A/T-ECU

Abnormal 

Normal

Abnormal 

Normal

Abnormal

Normal 

Normal 

Abnormal 

Abnormal

Repair 

Repair 

Replace 

 

 

 

94 

   

Chery·Maintenance Manual for Oriental Son

   

Automatic Transmission 

95 

Car speed sensor system 

Possible cause 

The reason is possibly car sped sensor circuit 
trouble or bad contact of A/T-ECU 

Car speed sensor trouble 
Connector trouble 
A/T-ECU trouble 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Check the car speed sensor 

Measure at Terminal B-67 of the car 
speed sensor 
Detach the connector and measure the 
wiring side 
Voltage between 1 and the ground 
circuit (ignition switch: ON) 
Normal: storage battery  
Voltage between 3 and the ground 
circuit (ignition switch: ON) 
Normal: 4.8-5.2V 
Connection between 2 and the ground 
circuit 
Normal: connected 

Check the following connector: B-67

Check fault symptoms 

Check the wiring 
between engine-
ECU and car 
speed sensor

Replace engine-ECU 

Check the following 
connectors: C-90, C-
131 C-135

Check fault symptoms 

Check wiring between 
car speed sensor and 
ignition switch connector

Check the ignition switch 

Check the following 
connector: C-30, C-47

Check fault symptoms 

Check the wiring between 
engine-ECU and car speed 
sensor connector 

Replace engine-ECU 

Check wiring between car speed sensor 
and grounding, and repair if necessary. 

Abnormal

Abnormal 

Abnormal

Abnormal

Abnormal

Abnormal 

Normal 

Normal

Abnormal

Normal

Abnormal 

Normal

Abnormal 

Normal 

Abnormal 

Abnormal

Normal

Abnormal

Normal 

Repair

Repair

Repair

Repair

Repair

 

 

 

 

 

 

 

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