Chery A11. Manual — part 177

Maintenance Manual for Chery · Windcloud

M7.9.7 EFI System

memory will be removed automatically.
Use scanner to remove failure information record by selecting the command of “Clear failure
memory”.
 Unplug ECU connection or pull out accumulator wires, and clear failure information record
in external RAM.

(9). Failure Identification:
Failure information record is obtained via the aforesaid means with only the rough part of
failure occurrence found. For the reason causing a failure information may be electrical
element breakdown (for example: sensor, actuator or ECU); may be wire having open circuit
or short circuit to ground or accumulator anode; and may be even mechanical failure.
Failure is an internal error, its external exhibition is various symptoms. If a symptom is found,
first check with scanner or according to flash code to see if there is any failure information
record, and eliminate relevant failure as per failure information, and then troubleshoot
according to engine symptom.

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Maintenance Manual for Chery · Windcloud

M7.9.7 EFI System

Failure code: P0107 too low circuit voltage of intake pressure sensor

Step Operation

Result Solution

1

Connect scanner and commutator, and then turn
ignition switch to “ON”.

Go to next step

Yes

Go to Step 5

2

Check Intake Pressure in data stream to see if it is
around 101kpa (specific value is related to site air
pressure).

No

Go to next step

Yes

Go to Step 5

3

Unplug intake pressure sensor connector from wire
harness and check the voltage between Pin 3 and
Pin 1 of the connector to see if it is around 5V.

No

Go to next step

Yes

Repair or
replace wire
harness

4

Check respectively connections between Pin 17 of
ECU and Pin 1 of sensor connector, Pin 33 of ECU
and Pin 3 of sensor connector, Pin 37 of ECU and
Pin 4 of sensor connector to see if short circuit
occurs.

No

Go to next step

Yes

Diagnosis
Instruction

5

Start engine and idle it. Slowly step down
accelerating pedal to dead position and observe
value of Intake Pressure on scanner, and it does not
vary much; quickly step down accelerating pedal to
dead position, the instant increase of value of Intake
Pressure reaches 90kpa or more.

No Replace

sensor

Yes

Diagnosis
Instruction

6

Start engine and idle it. Observe value of Coolant
Temperature, it increases along with coolant
temperature.

No Replace

sensor

Failure code: P0118 too high indication of engine coolant temperature

sensor

Step Operation

Result Solution

1

Connect scanner and commutator, and then turn
ignition switch to “ON”.

Go to next step

Yes

Go to Step 6

2

Check Coolant Temperature in data stream to see if
it is equivalent to engine temperature (specific value
is related to engine temperature at that very
moment)
Note: -40℃ value shown constantly may indicate
open circuit.

No

Go to next step

3

Unplug coolant temperature sensor connector from
wire harness and check the resistance value between

Yes

Go to next step

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Maintenance Manual for Chery · Windcloud

M7.9.7 EFI System

wire harness and check the resistance value between
Pin 1 and Pin 2 with a multimeter to see if it
corresponds with the temperature (refer to
corresponding chapter of this manual for details).

No Replace

sensor

Yes

Go to Step 6

4

Unplug coolant temperature sensor connector from
wire harness and check the voltage between Pin 1
and Pin 2 with a multimeter to see if it is around 5V.

No

Go to next step

Yes

Repair or
replace wire
harness

5

Check respectively the connections between Pin 39
of ECU and Pin 1 of sensor connector, Pin 35 of
ECU and Pin 2 of sensor connector to see if they are
short circuit to ground.

No

Go to next step

Yes

Diagnosis
Instruction

6

Start engine and idle it. Observe value of Coolant
Temperature, it increases along with coolant
temperature.

No Replace

sensor

Failure code: P0122 too low circuit voltage of throttle position sensor

Step Operation

Result Solution

1

Connect scanner and commutator, and then turn
ignition switch to “ON”.

Go to next step

Yes

Go to next step

2

Check Throttle Absolute Opening in data stream to
see if it is 4%-10% (depends on specific car model). No

Go to Step 5

Yes

Go to next step

3

Slowly step down accelerating pedal to dead
position and observe Throttle Absolute Opening in
data stream to see if it increases to 85-95% (depends
on specific car model) along with opening of
throttle.

No

Go to Step 5

Yes Replace

sensor

4

Repeat Step 3 and check Throttle Absolute Opening
in data stream to see if it jumps when changing.

No

Go to next step

Yes

Repair or
replace wire
harness

5

Unplug throttle position sensor connector from wire
harness, and respectively check the connections
between Pin 17 of ECU and Pin 1 of sensor
connector, Pin 32 of ECU and Pin 2 of sensor
connector, Pin 16 of ECU and Pin 3 of sensor
connector to see if they are short circuit to ground.

No

Go to next step

Yes Replace

sensor

6

Check the voltage between Pin 1 and Pin 2 of
sensor connector with a multimeter to see if it is
around 5V.

No

Diagnosis
Instruction

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Maintenance Manual for Chery · Windcloud

M7.9.7 EFI System

Failure code: P0123 too high circuit voltage of throttle position sensor

Step Operation

Result Solution

1

Connect scanner and commutator, and then turn
ignition switch to “ON”.

Go to next step

Yes

Go to next step

2

Check Throttle Absolute Opening in data stream to
see if it is 4%-10% (depends on specific car model). No

Go to Step 5

Yes

Go to next step

3

Slowly step down accelerating pedal to dead
position and observe Throttle Absolute Opening in
data stream to see if it increases to 85-95% (depends
on specific car model) along with opening of
throttle.

No

Go to Step 5

Yes Replace

sensor

4

Repeat Step 3 and check Throttle Absolute Opening
in data stream to see if it jumps when changing.

No

Go to next step

Yes

Repair or
replace wire
harness

5

Unplug throttle position sensor connector from wire
harness, and respectively check the connections
between Pin 17 of ECU and Pin 1 of sensor
connector, Pin 32 of ECU and Pin 2 of sensor
connector, Pin 16 of ECU and Pin 3 of sensor
connector to see if open or short circuit occurs.

No

Go to next step

Yes Replace

sensor

6

Check the voltage between Pin 1 and Pin 2 of
sensor connector with a multimeter to see if it is
around 5V.

No

Diagnosis
Instruction

Failure code: P0130 signal circuit error of upstream oxygen sensor

(Note: the following diagnosing process shall apply only when failure code of P0135 does not
occur at the same time. In case this failure code occurs concurrently, please fix it fisrt before
examining and repairing as per the following process.)

Step Operation

Result Solution

1

Connect scanner and commutator, and then turn
ignition switch to “ON”.

Go to next step

Yes

Diagnosis
Instruction

2

Start engine and idle it until coolant temperature is
normal. Observe Oxygen Sensor Voltage to see if
the indication quickly changes between
100mV-900mV.

No

Go to next step

Yes

Repair or
replace wire
harness

3

Check respectively the connections between Pin 36
of ECU and Pin A (corresponding to gray wire of
oxygen sensor) of sensor connector, Pin 18 of ECU
and Pin B (corresponding to black wire of oxygen
sensor) of sensor connector to see if they are short
circuit to ground.

No

Go to next step

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