Chery B11. Manual - part 98

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 right 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 C0033 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 C0022 reset or if the front right 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 A07 and A08.  
5. Select AC mV scale 
6. Rotate the front right wheel while observing the 
voltmeter (the voltage shall increase with the speed 
increase) 
Is the AC voltage within the range required?  

At least 
100mV 

To 
Step 
16 

To Step 
6 

6 

1. Detach the front right straddling wire harness from 
the front right wheel speed sensor.  
2. Connect the ohmmeter to the front right 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 right straddling wire harness still remains 
detached from the front right wheel speed sensor. 
2. Connect the ohmmeter to the front right wheel speed 
sensor terminals A and B. 
3. Select AC mV scale.  
4. Rotate the front right 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 8

To Step 
17 

8 

1. Detach the front right 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 A07 
and A08.  
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 right wire harness remains detached from the 
ABS car body wire harness.  
3. Connect an ohmmeter to the EBCM terminal A07 and 
then to the ABS car body wire harness terminal A.  

Less than 
2ohm 

To 
Step 
10 

To Step 
19 

 
 
 
 
 
 
Six. C0023 Rear left 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 C0023:  
(1) C0032, C0033, C0034 or C0035 is 
not current.  
(2) ABS does not work.  
(3) Braking switch is on.  
(4) Rear left 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 C0023.  
(3) ABS is disabled and ABS alarm 
lamp is on.  
 
4. Conditions for clearing 
troubleshooting codes 
If the conditions for setting up 
troubleshooting code C0023 are gone, 
corresponding scanning tools can be 
used to clear the troubleshooting code.  
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 C0023.  
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
6. Diagnostic steps 

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 rear 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 C0034 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 C0023 reset or if the rear 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 A03 and A04.  
5. Select AC mV scale 
6. Rotate the rear left wheel while observing the 
voltmeter (the voltage shall increase with the speed 
increase) 
Is the AC voltage within the range required?  

At least 
100mV 

To 
Step 
16 

To Step 6 

6 

1. Detach the rear left straddling wire harness from the 
rear left wheel speed sensor.  
2. Connect the ohmmeter to the rear 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. Rear left straddling wire harness still remains 
detached from the rear left wheel speed sensor. 
2. Connect the ohmmeter to the rear left wheel speed 
sensor terminals A and B. 
3. Select AC mV scale.  
4. Rotate the rear left wheel while observing the 
voltmeter (the voltage shall increase with the speed 
increase) 
Is the AC voltage within the range required? 

At least 
100mV 

To 
Step 8 

To Step 17 

8 

1. Detach the rear 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 A03 
and A04.  
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. Rear left straddling wire harness remains detached 
from the ABS car body wire harness.  
3. Connect an ohmmeter to the EBCM terminal A03 and 
then to the ABS car body wire harness terminal A.  

Less than 
2ohm 

To 
Step 
10 

To Step 19