Chery B11. Manual - part 107

 

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Chery B11. Manual - part 107

 

 

 
 
 
 

Ignition 
switch 

Power 
supply

 
 
 
 
 
 
 
 
 
1. Description of circuit 
This circuit is used to monitor the voltage 
level that can be provided to EBCM. Not 
all system properties can be ensured when 
the voltage has decreased to a certain 
extent. Therefore, monitor the voltage to 
ensure that the battery has been charged 
properly before the operation of ABS and 
also during the operation of ABS if the 
voltage is possible to decrease 
substantially.  
 
2. Conditions for setup of 
troubleshooting codes 
If the ignition voltage to terminal A11 and 
the storage battery to terminals A and B 
are lower than 10.5V in the absence of 
ABS or during initializing, then C0036 can 
only be set when the car speed is bigger 
than 8km/h (5mile/h). 
 
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 C0036.  
(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 DTC C0036 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 
The typical cause of the setup of DTC 
C0036 includes:  
(1) Weak or discharged storage battery;  
(2) Bad contact of storage battery 
terminals;  
(3) Too much consumption of storage 
battery energy during workshop assembly 
or additional equipment connection 
(additional load) after exworks;  
(4) Ground fault of storage battery on 
cylinder body or chasis; 
(5) EBCM terminal bad contact;  
(6) EBCM ground fault;  
(7) Charging system fault (generator); 
Thoroughly check the wiring and 
connectors. Failure in thoroughly and 
carefully checking the wiring and 
connectors may lead to component 
replacement instead of maintenance.  
 

 
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 6 

2 

1. Carry out a load test on the storage battery. 
Refer to “Storage Battery” in the maintenance 
manual.  
2. Check the charging system. Refer to 
“Starter and Charging System” in the 
maintenance manual.  
3. Carry out additional load test.  
Are the tests on storage battery and charging 
system and the load test passed?  

Storage 
battery must 
maintain a 
voltage of 
9.6V for ten 
seconds. The 
shunted 
current shall 
not exceed 
30mA 

To 
Step 3 

To Step 7 

3 

1. Shut off engine 
2. Detach the storage battery positive and 
negative terminals 
3. Detach the wire harness from the EBCM; 
4. Check if there is any bad contact for the 
following:  
·Storage battery terminal cable; 
· Connection between negative cable and 
cylinder and/or chasis. 
· Connection between positive cable and 
starter solenoid and/or junction box. 
·EBCM terminals A11, A, B, C 
·EBCM ground wire in the chasis.  
Are the above connections satisfactory?  

 To 

Step 4 

To Step 8 

4 

1. EBCM still remains detached.  
2. Storage battery cable still remains detached. 
3. Connect one ohmmeter between EBCM 
wire harness terminal C and storage battery 
negative cable.  
Is the resistance within the range required?  

Less than 
2ohm 

To 
Step 5 

To Step 9 

5 

1. Reconnect the storage battery wires.  
2. EBCM still remains detached.  
3. Ignite 
4. Measure the voltages on EBCM wire 
harness terminals A11, A and B with a 
voltmeter.  
Are the voltages on three terminals within the 
range required?  

Storage 
battery 
voltage 

To 
Step 
11 

To Step 10 

6 

Check the diagnostic circuit.  

 

 

 

7 

Repair the charging system and/or 
Recharge/replace the storage battery and/or 

 

 

 

Identify and repair the cause of material extra 
power consumer.  

8 

Repair terminals and/or connections as the 
case may require.  

 

 

 

9 

Identify and repair the cause of high resistance 
between storage battery cathode cable and 
EBCM wire harness connectors.  

 

 

 

10 

Identify and repair the cause of EBCM low 
voltage.  

 

 

 

11 

Replace the EBCM.  

 

 

 

 
 
Seventeen. C0037 High system voltage 

 
 
 
 

Ignition 
switch 

 

Power 
supply

 
 
 
 
 
 
 
 

 
1. Description of circuit 
This circuit is used to monitor the voltage 
level that can be provided to EBCM. 
When the voltage increases to a certain 
extent, the system may be damaged.  
 
2. Conditions for setup of 
troubleshooting codes 
If the voltage provided for terminal A 
and/or B is bigger than 17V for one 
second, then DTC C0037 can only be set 
when the car speed is bigger than 8km/h 
(5mile/h). 
 
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 C0037.  
(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 DTC C0037 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 
The typical cause of the setup of DTC 
C0037 includes:  
(1) Charging system trouble (generator) 
(2) Bad contact 
(3) EBCM trouble. 

 
 
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 4 

2 

1. Connect the voltmeter to the storage battery’s 
anode and cathode terminals. 
2. Turn off all components.  
3. Turn off the engine.  
4. Monitor the storage battery voltage in ABS 
data list when the engine is running at a speed of 
2,000rpm for a couple of seconds.  
Is the voltage within the range required?  

Less than 
17V 

To 
Step 3 

To Step 5 

3 

1. Connect the scanning device and select the 
ABS data list.  
2. Monitor the storage battery voltage in ABS 
data list when the engine is turning at a speed of 
2,000rpm for a couple of seconds.  
Is the voltage within the range required? 

Less than 
17V 

To 
Step 6 

To Step 7 

4 

Check the diagnostic circuit.  

 

 

 

5 

Refer to “Diagnosis of Starter and Charging 
System”.  

 

 

 

6 

The condition is intermittent. Refer to 
“Assistance to Troubleshooting” and “Diagnosis 
of Starter and Charging System”. 

 

 

 

7 

Replace the EBCM.  

 

 

 

 
Eighteen. C0042 Open circuit of oil pump motor 

 
 
 
 
 
 
 
 

 

1. Description of circuit 

The 

pump 

motor is 

incorporated in the BPMV and grounded 
through EBCM terminal D.  

Ignition 
switch 

Power supply

Solenoid valve relay 

Oil pump motor 

Electronic brake 
control module 

Brake pressure modulator valve

 

 

 

 

 

 

 

 

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