Chery A11. Manual - part 181

 

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Chery A11. Manual - part 181

 

 

 

Maintenance Manual for Chery · Windcloud      

M7.9.7 EFI System

 

 

Failure code: P0507 higher idling speed than target value 

Step Operation 

Result  Solution 

1 

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

 

Go to next step

Yes 

Go to next step

2 

Check throttle regulating screw, throttle cable and 
working conditions of throttle to see if they are 
normal. 

No 

Carry out 
necessary 
inspection, 
repair and 
maintenance 

Yes 

Go to next step

3 

Check working conditions of idle speed regulator to 
see if they are normal. 

No 

Carry out 
necessary 
inspection, 
repair and 
maintenance 

Yes 

Carry out 
necessary 
inspection and 
repair 

4 

A. Check system for air leakage; 
B.  Check injectors for leakage; 
C. Check fuel system pressure to see if it is too 

high. 

No 

Diagnosis 
Instruction 

 

Failure code: P0508 too low control circuit voltage of idle speed regulator 

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 

Unplug idle speed regulator connector, check 
respectively the resistances between Pin A and Pin 
D, Pin B and Pin C of the regulator with a 
multimeter too see if they are around 53±5.3Ω at 
20℃. 

No 

Replace 
stepper motor 

Yes 

Repair or 
replace wire 
harness 

3 

Check respectively the connections between Pin A, 
B, C, D of idle speed regulator connector and Pin 
65, 66, 67, 64 of ECU to see if short circuit to 
ground occurs. 

No 

Diagnosis 
Instruction 

 

Failure code: P0509 too high control circuit voltage of idle speed regulator 

Step Operation 

Result  Solution 

 

32

 

Maintenance Manual for Chery · Windcloud      

M7.9.7 EFI System

 

1 

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

 

Go to next step

Yes 

Go to next step

2 

Unplug idle speed regulator connector, check 
respectively the resistances between Pin A and Pin 
D, Pin B and Pin C of the regulator with a 
multimeter too see if they are around 53±5.3Ω at 
20℃. 

No 

Replace 
stepper motor 

Yes 

Repair or 
replace wire 
harness 

3 

Check respectively the connections between Pin A, 
B, C, D of idle speed regulator connector and Pin 
65, 66, 67, 64 of ECU to see if short circuit occurs. 

No 

Diagnosis 
Instruction 

 

Failure code: P0511 control circuit error of idle speed regulator 

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 

Unplug idle speed regulator connector, check 
respectively the resistances between Pin A and Pin 
D, Pin B and Pin C of the regulator with a 
multimeter too see if they are around 53±5.3Ω at 
20℃. 

No 

Replace 
stepper motor 

Yes 

Repair or 
replace wire 
harness 

3 

Check respectively the connections between Pin A, 
B, C, D of idle speed regulator connector and Pin 
65, 66, 67, 64 of ECU to see if open circuit occurs. 

No 

Diagnosis 
Instruction 

 

Failure code: P0560 improper system voltage signal 

Step Operation 

Result  Solution 

1 

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

 

Go to next step

Yes 

Go to next step

2 

Check battery voltage with a multimeter to see if it 
is around 12V. 

No 

Replace 
battery 

Yes 

Repair or 
replace wire 
harness 

3 

Check respectively the connections between Pin 44, 
45, 63 of ECU and Pin 87 of main relay to see if 
open circuit or short circuit to ground occurs. 

No 

Go to next step

Yes 

Go to next step

4 

Start engine, check charging voltage of generator at 
different engine speeds to see if it maintains within 
9-16V. 

No 

Replace 
generator 

 

33

 

Maintenance Manual for Chery · Windcloud      

M7.9.7 EFI System

 

Yes 

Diagnosis 
Instruction 

5 

Check ground point of engine wire harness to see if 
it is normal. 

No 

Repair or 
replace wire 
harness 

 

Failure code: P0562 too low system voltage 

Step Operation 

Result  Solution 

1 

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

 

Go to next step

Yes 

Go to next step

2 

Check battery voltage with a multimeter to see if it 
is around 12V. 

No 

Replace 
battery 

Yes 

Repair or 
replace wire 
harness 

3 

Check respectively the connections between Pin 44, 
45, 63 of ECU and Pin 87 of main relay to see if the 
resistances are too high. 

No 

Go to next step

Yes 

Go to next step

4 

Start engine, check charging voltage of generator at 
different engine speeds to see if it maintains within 
9-16V. 

No 

Replace 
generator 

Yes 

Diagnosis 
Instruction 

5 

Check ground point of engine wire harness to see if 
it is in good condition. 

No 

Repair or 
replace wire 
harness 

 

Failure code: P0563 too high system votage 

Step Operation 

Result  Solution 

1 

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

 

Go to next step

Yes 

Go to next step

2 

Check battery voltage with a multimeter to see if it 
is around 12V. 

No 

Replace 
battery 

Yes 

Go to next step

3 

Start engine, check charging voltage of generator at 
different engine speeds to see if it maintains within 
9-16V. 

No 

Replace 
generator 

Yes 

Diagnosis 
Instruction 

4 

Check ground point of engine wire harness to see if 
it isin good condition. 

No 

Repair or 
replace wire 
harness 

 

 

34

 

Maintenance Manual for Chery · Windcloud      

M7.9.7 EFI System

 

Failure code: P0601 non-programmed check code error of ECU 

Step Operation 

Result  Solution 

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

1 

 

Go to next step

Yes 

Go to next step

2 

Clear failure code, recheck the failure to see if it is a 
constant failure. 

No System 

normal

3 Replace 

ECU. 

Finish 

 

Failure code: P0602 non-programmed diagnostic data identification code 

error of ECU 

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 

Clear failure code, recheck the failure to see if it is a 
constant failure. 

No System 

normal

3 Replace 

ECU. 

Finish 

 

Failure code: P0645 control circuit error of air conditioner compressor 

relay 

Step Operation 

Result  Solution 

1 

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

 

Go to next step

Yes 

Go to Step 4 

2 

Unplug air conditioner compressor relay, turn 
ignition switch to “ON”, check voltages between 
Pin 30, 85 of relay and cathode of power supply to 
see if they are around 12V. 

No 

Go to next step

Yes 

Repair or 
replace wire 
harness 

3 

Check power supply terminal circuit of relay to see 
if open circuit or short circuit to ground occurs. 

No 

Go to Step 2 

Yes Replace 

relay 

4 

Check the voltage between Pin 86 of relay (control 
terminal of air conditioner compressor relay) and 
cathode of power supply to see if it is around 3.7V. 

No 

Go to next step

Yes 

Repair or 
replace wire 
harness 

5 

Check the connection between Pin 86 of relay 
(control terminal of air conditioner compressor 
relay) and Pin 70 of ECU to see if open circuit 
occurs. 

No 

Diagnosis 
Instruction 

 

 

35

 

 

 

 

 

 

 

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