Chery B11. Manual - part 97

 
 
 

 

Step Diagnostic 

action 

Expected 
value 

Yes No 

1 

If the checking of diagnostic circuit has been finished 

 

To Step 
2 

To Step 
12 

2 

1. Shut off engine 
2. Check if the front left wheel speed sensor, 
straddling wire harness and gear ring suffers any 
physical damage. 
Is there any physical damage?  

 

To Step 
13 

To Step 3 

3 

Is DTC C0032 to be set as a current or historic code?  

 

To  Step 
14 

To Step 4 

4 

1. Connect the scanning device and select the data list 
2. Monitor wheel speed sensor 
3. Trial run the car at a speed of 24km/h (15mile/h) 
and then gradually lower the car speed to zero. Repeat 
it for a couple of times. 
Is C0021 reset or if the front left wheel speed 
suddenly lowers to zero before the car fully stops?  

 

To Step 
5 

To Step 
15 

5 

1. Shut off engine 
2. Lift and properly support the car. 
3. Detach the EBCM wire harness from the EBCM 
4. Connect a voltmeter to the EBCM wire harness 
Terminals A09 and A10.  
5. Select AC mV scale 
6. Rotate the front left wheel while observing the 
voltmeter (the voltage shall increase with the speed 
increase) 
Is the AC voltage within the range required?  

At least 
100mA 

To Step 
16 

To Step 6 

6 

1. Detach the front left wire harness from the front left 
wheel speed sensor.  
2. Connect the ohmmeter to the front left wheel speed 
sensor terminals A and B.  
Is the resistance within the range required?  

800-
1,600ohm 
(resistance 
will increase 
with 
temperature 
rise 

To Step 
7 

To Step 
17 

 
 
 
 
 

7 

1. Front left straddling wire harness still remains detached 
from the front left wheel speed sensor. 

At 
least 

To 
Step 8 

To Step 17 

2. Connect the ohmmeter to the front left wheel speed 
sensor terminals A and B. 
3. Select AC mV scale.  
4. Rotate the front left wheel while observing the voltmeter 
(the voltage shall increase with the speed increase) 
Is the AC voltage within the range required? 

100m
V 

8 

1. Detach the front left straddling wire harness from the 
ABS car body wire harness.  
2. EBCM wire harness remains detached from the EBCM.  
3. Connect an ohmmeter to the EBCM terminals A09 and 
A10.  
Is the resistance within the range required? 

OL 
open 
circuit 

To 
Step 9 

To Step 18 

9 

1. EBCM wire harness remains detached from the EBCM.  
2. Front left straddling wire harness remains detached from 
the ABS car body wire harness.  
3. Connect an ohmmeter to the EBCM terminal A09 and 
then to the ABS car body wire harness terminal A.  
Is the resistance within the range required? 

Less 
than 
2ohm 

To 
Step 
10 

To Step 19 

10 

1. EBCM wire harness remains detached from the EBCM.  
2. Front left straddling front left wire harness remains 
detached from the ABS car body wire harness.  
3. Connect an ohmmeter to the EBCM terminal A10 and 
then to the ABS car body wire harness terminal B.  
Is the resistance within the range required? 

Less 
than 
2ohm 

To 
Step 
11 

To Step 20 

11 

1. Replace front left wheel speed sensor straddling wire 
harness.  
2. Trial run the car at various speeds on various road 
surfaces.  
Is C0021 reset?  

 

To 
Step 
16 

Car 
maintenance 

12 

Check the diagnostic circuit before the test is carried out.  

 

 

 

13 

Repair the front left wheel speed sensor, straddling wire 
harness and/or damaged ring with gear rings.  

 

 

 

14 

Diagnose DTC C0032 before carrying out the steps in the 
table 

 

 

 

15 

DTC C0021 is intermittent. Refer to “Assistance to 
troubleshooting”. 

 

 

 

16 

Replace the EBCM.  

 

 

 

17 

Replace the front left wheel speed sensor 

 

 

 

18 

Identify and repair the short circuit between two circuits.  

 

 

 

19 

Repair the open circuit or high resistance between 
terminals A09 and A.  

 

 

 

20 

Repair the open circuit or high resistance between 
terminals A10 and B.  

 

 

 

 
 

Five. C0022 front right wheel speed sensor input signal = 0 
 
 

Wheel speed sensor

Straddling 
wire 

Car body wire harness

 
 
 

Gear 
ring 

 
 
 
 
 
 
 
1. Description of circuit 
The wheel speed sensor will create an 
AC voltage that increases with the 
increase of wheel speed. EBCM then 
calculates the wheel speed on the basis 
of the AC signal frequency. The speed 
sensor is connected to the EBCM by a 
twisted pair which can reduce the noise 
vulnerability of troubleshooting codes.  
 
2. Conditions for setup of 
troubleshooting codes 
The following conditions will have to be 
met for the setup of C0022:  
(1) C0032, C0033, C0034 or C0035 is 
not current.  
(2) ABS does not work.  
(3) Braking switch is on.  
(4) Front right wheel speed is 0, and the 
speeds of other wheels are bigger than 
8km/h (5mile/h) for at least 2.5 seconds.  
 
3. Actions to be taken for setup of 
troubleshooting codes 
(1) The electromagnetic relay is turned 
off and pump motor and solenoid are 
disconnected with the power source.  
(2) Save DTC C0022.  
(3) ABS is disabled and ABS alarm 
lamp is on.  
 
4. Conditions for clearing 
troubleshooting codes 

(1) If the conditions for setting up 
troubleshooting code C0022 are gone, 
corresponding scanning tools can be 
used to clear the troubleshooting code.  
(2) If the troubleshooting code does not 
appear for 100 driving cycles running, it 
can be eliminated from the database.  
 
5. Assistance to troubleshooting 
In the case of any interrupted 
troubleshooting code, please thoroughly 
check the wiring and connectors, which 
shall include:  
(1) Unfix guard pipes and check if the 
wiring is damaged, short circuited and 
polluted.  
(2) Check if the terminals are deformed 
and/or damaged.  
(3) Check the contact (fastness) of 
terminals by the spare male/female 
terminals.  
(4) Check if the wire terminals are 
correct by unfixing terminals from the 
connector.  
If the driver complains that the ABS 
alarm lamp only illuminates when there 
is a change in environment moisture 
(rain, snow and car washing), please 
thoroughly check if any wheel speed 
sensor is soaked. If the troubleshooting 
code is not current, then simulate the 
impact of water soaking. Follow the 
following steps: spray 5% brine on 

suspected area. Then trial run the car at a 
speed of over 24km/h (15m/h) on 
various road surfaces (e.g. bumpy or 
curved road, etc). If any troubleshooting 
code appears, then replace the suspected 
wire harness and/or sensor.  
Make sure that the car is under room 
temperature when measuring wheel 

speed sensor resistance as the resistance 
will increase with temperature rise.  
Any failure in carefully and thoroughly 
following the above steps will possibly 
result in wrong diagnosis, unnecessary 
component replacement and 
reoccurrence of DTC C0022.  
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6. Diagnostic steps