Chery B11. Manual — part 76

Chery Automobile Maintenance Manual

25

III. Camshaft position sensor

Type: Hall Type

Construction and principle--

one-cylinder top dead center of B11

automobile engine includes Hall flip-flop,

permanent magnets and shielding cover,

one group of magnets are installed in the

front cover of camshaft in the engine

cylinder case, one of which is pressed to

Hall flip-flop (electricity goes vertically

through flux as shown). Shielding cover is

installed in front of camshaft and rotates

with it. It lies between the two magnets.

There are two rectangular notches in the

side cover, which will generate rectangular

voltage wave by Hall flip-flop through

flux. It is output to ECU by terminals and

to confirm the accuracy of ignition time by

logic operation.

1- conductivity when ground is normal

2- connect to Pin D19 of ECU(IG:

normal voltage is 4.8-5.2V when

On)

3- power(IG: normal voltage is battery

voltage when On)

2

1

3

Cam position sensor connector

Electric signal terminal

Flux port

Shielding cover

Camshaft

Permanent
magnet

Hall flip-flop

Camshaft position sensor

Chery Automobile Maintenance Manual

26

Error code NO.23 cam position sensor
connector system

Possible reasons

Setup condition

Ignition switch ON

Engine speed above 50rpm

Setup condition

Sensor output voltage keeps unchanged for continuous 4

seconds.

Cam position sensor connector error

Harness joint contact failure, sensor disconnect or short

wiring

Engine ECU failure

Measure cam position sensor connector
Connect connector and apply testing wire: MB991223
voltage between terminal 2# and ground(motor
on)normal:0.4～3.0V
voltage between terminal 2# and ground(engine

idle)normal:0.5～2V

Norm

al

Replace engine ECU

Abnorm

al

Measure cam position sensor connector
Disconnect joint, measure harness side joint
1. Voltage between terminal 3# and ground (ignition
switch ON)
normal：battery voltage
2. Voltage between terminal 2# and ground (ignition
switch ON)
normal：4.8～5.2V
3. Conductivity between terminal 1# and ground

normal：conductivity

Norm

al

Check sensor connector

Abnorm

al

Repair

Norm

al

Check failure

Abnorm

al

Replace cam position sensor

1.abnoma

l

Check harness between cam position sensor and control

relay. If necessary, repair it.

2.abnorm

al

Check connector of harness in D zone

Abnormal

Repair

Norm

al

Check failure

Abnorm

al

Check harness between cam
position sensor and engine ECU.

Abnormal

Repair

Norm

al

Replace engine ECU

3.abnorm

al

Check harness between cam position sensor connector and

ground. If

necessary, repair it.

Chery Automobile Maintenance Manual

27

IV. Ignition coil

The system includes two ignition coils (A
and B) with powered transistor, which are
respectively applied in No.1, No.4 cylinder
and No.2, No.3 cylinder.

Interrupting

electricity in the primary side of ignition
coil A will generate high -pressure
electricity in its secondary side. The
generated high- pressure electricity is put
on the spark plugs in the cylinder No.1 and
No. 4 and then they spark. When the two
spark plugs generate sparks, if one cylinder
is under compressing process while another
is under the exhaust process, the
compressed air/fuel mixture in the cylinder
under compression will be ignited.

1.

Spark plug cable

2. Ignition

coil

3. Spark

plug

1、check conductivity of power transistor
remarks
（1）Apply simulated resistance gauge.
（ 2 ） Connect the cathode (-) of the
multi-meter to the terminal.
Caution:Rapidly finish the test (in 10 seconds)
in case of coil burning and damage of power
transistor.

If error occurred,replace the ignition coil.

2、check on the resistance wire

Measure resistance of all spark plug cables.
（1）Check whether there is any crackle in the

cover and the coating.
（2）Measure resistance.

Limit value: 22kΩ

Ignition coil

Chery Automobile Maintenance Manual

28

Error code NO.44 Ignition coil and power

transistor component system

Possible reasons

Check area

Engine speed 50～4000rpm

Except deceleration and sudden acceleration or deceleration

Setup condition

Ignition failure in cylinder No.1 and No.4 or cylinder No.2

and No. 3 exceeds every 1000rpm preset ignition failure

Ignition coil error

Connector contact defeat of ignition primary

circuit, wiring disconnect or short wiring

Error in spark plug and spark plug cable

Incorrect compression pressure

Engine-ECU failure

2

1

3

Ignition Coil Connector

Measure at the ignition coil
connector
Disconnect

connector

and measure wiring side.
1. Voltage between 1 and
ground（ignition switch：ON）
normal：system voltage
2. Voltage between 3 and
ground（engine: ON） normal：
0.5~4.0V
3. Conductivity between 2 and
ground
normal：conductivity

Replace engine-ECU

Check failure

Check the wiring between

ignition coil and ignition switch

connector. If necessary, repair it.

Check the following electric

wiring of instrument panel

Check the wiring between

engine-ECU and ignition

coil connector.

1.abnorm

al

Normal

Abnormal

Abnormal

Repair

Normal

2. Abnormal

Repair

Normal

Check the wiring between

ignition coil and ground. If

necessary, repair it.

Check the following

ignition coil connector.

Check the following wiring

in zone A of ECU

Check failure

Repair

Abnormal

Abnorm

al

Check failure

Check the following：

Check spark plug and

spark plug cable

check compression

pressure

Abnormal

Normal

Replace ignition coil

Check failure

Replace engine-ECU

3. Abnormal

Abnormal

Repair or

replace