Chery A15. Manual - part 276

- Open circuit of crank shaft position sensor 
wire harness 
- Crank shaft position sensor terminals are 
reversely connected. 
- Incorrect clearance between sensor and 58x 
target gear  
- Sensor absorbs foreign matters 
- Sensor magnetism fades or is spoiled 
2) There is turning speed data flow 
- Incorrect relative position between the 58x 
gear and the upper limit 

- Repair wire harness 
 
- Repair wire harness 
 
- Adjust the clearance: 0.3-1.5mm 
 
- Clean the sensor 
- Replace the sensor 
2) There is turning speed data flow 
- Check: Lower rim of Tooth No. 20 is 
the upper limit of Cylinder 1-4.  

Fuel supply system: 
1) Reversed connection of inlet/return fuel  
pipe 
2) Open circuit of fuel pump wiring 
 
3) Extra fuel in the engine 
 
 
 
 
 
4) Inlet pipe pressure > 250kPa 
- Blocked spray nozzle 
5) Inlet pipe pressure < 250kPa 
- Insufficient fuel in the fuel tank 
- Clogged fuel filter 
- Inlet pipe leakage 
- Damaged fuel pressure regulator 
- Insufficient fuel pump pressure 
- Improper fuel evaporative duty 

 
1) Connect properly 
 
2) Repair vehicle wire harness and fix the 
fuel pump fittings again 
3) Small amount of extra fuel in the 
engine: wide open the throttle and start 
the starter; 
Big amount of extra fuel in the engine: 
unfix the spark plug and start the starter 
until the extra fuel is fully dried.  
4)  
- Replace spray nozzle 
5) 
- Gas up 
- Replace the fuel filter 
- Replace the inlet pipe 
- Replace the fuel pressure regulator 
- Replace the fuel pump 
- Use fuel of appropriate evaporative 
duty based on the season 

Ignition system 
1) Ignition coil fittings 
2) Incorrect cylinder sequence 
 
3) Damaged spark plug 
4) Damaged ignition coil 

 

 
1) Fix the terminals again 
2) Connect the coil and spark plug as 
instructed 
3) Replace the spark plug 
4) Replace the ignition coil 

 
 
 
 
 
Continued 

Idle speed control system: 
1) Lightly step on the accelerator pedal but 

 
1) Look for other causes 

 

startup fails. 
2) Lightly step on the accelerator pedal and the
car starts 

 2) 

- Idle speed valve terminal is detached 
- Idle speed valve terminals do not match with 
ECM terminals 
- Blocked idle speed valve 
- ECM normal power supply is cut off 
- Idle speed valve is damaged 
- ECM fault 

 

 
- Fix the terminals again 
- Repair wire harness 
 
- Clean the throttle body 
- Repair wire harness 
- Replace idle speed valve 
- Replace ECM 

Intake/exhaust system 
1) Clogged air filter 
 
2) Clogged three-way catalyst 
- Broken catalyst 
- Clogged with foreign matters 

 
1) Clean the air passage and replace the 
filter element 
2)  
- Replace the three-way catalyst 
- Repair the engine and replace the three-
way catalyst 

 
 

Fault 03 

Engine is ignited but fails to start 

Possible cause 

Reference maintenance scheme 

Fuel supply system: 
1) Inlet pipe pressure < 250kPa 
- Insufficient fuel in the fuel tank 
- Clogged fuel filter 
- Inlet pipe leakage 
- Damaged fuel pressure regulator 
- Insufficient fuel pump pressure 
- Improper fuel evaporative duty 

 
1)  
- Gas up 
- Replace fuel filter 
- Replace inlet pipe 
- Replace fuel pressure regulator 
- Replace fuel pump 
- Use fuel of appropriate evaporative 
duty based on the season 

Idle speed control system: 
1) Step on the accelerator pedal and the engine 
starts 
- Idle speed valve terminal is detached 
- Idle speed valve terminals do not match with 
ECM terminals 
- Blocked idle speed valve 
- ECM normal power supply is cut off 
- Idle speed valve is damaged 
- ECM fault 

 
1) 
 
- Fix the terminals again 
- Repair wire harness 
 
- Clean the throttle body 
- Repair wire harness 
- Replace idle speed valve 
- Replace ECM 

 
 
 
Continued 

Intake/exhaust system: 
1) Clogged air filter 

 
1) Clean the air passage and replace the 

 

 
2) Clogged three-way catalyst 
- Broken catalyst 
- Clogged with foreign matters 

filter element 
2)  
- Replace the three-way catalyst 
- Repair the engine and replace the three-
way catalyst 

 
 

Fault 04 

Abnormal idle speed 

Possible cause 

Reference maintenance scheme 

1) System is powered up for the first time after 
power supply to the vehicle is cut off 
2) ECM normal power supply is cut off at 
parking 

1) Turn off the ignition switch and restart 
10 seconds later 
2) Resume normal power supply to the 
ECM 

 
 

Fault 05 

Low idle speed 

Possible cause 

Reference maintenance scheme 

1) Idle speed valve terminal is detached 
2) Idle speed valve terminals do not match 
with ECM terminals 
3) Blocked idle speed valve 
4) Idle speed valve is damaged  
5) Insufficient fuel in the fuel tank 
6) Clogged fuel filter 
7) Inlet pipe leakage 
8) Clogged three-way catalyst 
 
9) Blocked air intake system 
 
10) Damaged fuel pressure regulator 
11) Insufficient fuel pump pressure 
12) ECM fault 

1) Fix again 
2) Repair wire harness 
 
3) Clean the throttle body 
4) Replace the idle speed valve 
5) Gas up 
6) Replace fuel filter 
7) Replace inlet pipe 
8) Replace the catalyst and repair the 
engine if necessary.  
9) Clean the air passage and replace the 
filter element 
10) Replace the fuel pressure regulator 
11) Replace the fuel pump 
12) Replace the ECM 

 
 
 
 
 
 
 
 
 
 
 

Fault 06 

High idle speed 

Possible cause 

Reference maintenance scheme 

 

1) Comply with target idle speed 
- Abnormal reading on water temperature 
sensor 
- Normal reading on water temperature sensor
2) Do not comply with target idle speed 
- Throttle position does not reset 
- Idle speed valve step distance < 50 steps – 
inlet pipe leakage; idle speed control system 
fault 
- 5 steps < Idle speed valve step distance < 150
steps -  Idle speed control system fault 

1)  
- Replace the water temperature sensor 
 
- Normal  
2)  
- Adjust the throttle pull rod 
- Repair inlet pipe leakage; see “Low idle 
speed” for idle speed control system fault
 
- see “Low idle speed” for idle speed 
control system fault 

 

Fault 07 

Unstable idle speed 

Possible cause 

Reference maintenance scheme 

1) Terminals of the spark plug wiring are not 
properly connected  
2) Different spark plug clearances 
3) Detached or damaged vacuum pipe of fuel 
pressure regulator  
4) Some spray nozzles are clogged 
 
5) Displaced 58x gear ring 

1) Connect again 
 
2) Adjust to 1.0-1.2mm 
3) Repair or replace the vacuum pipes 
 
4) Clean or replace the defected spray 
nozzle 
5) Make sure that the lower rim of Tooth 
No. 20 is the upper limit of Cylinder 1-4.

 

Fault 08 

Sudden flameout when the engine is in normal operation 

Possible cause 

Reference maintenance scheme 

1) Terminals of the electrical system are not 
properly connected.  
 
2) Insufficient fuel in the fuel tank 
3) Inlet pipe leakage 

1) Check all relevant fittings in the 
circuits to the power source 
anode/cathode 
2) Gas up 
3) Replace the inlet pipe 

 

Fault 09 

Engine decelerates and flames out 

Possible cause 

Reference maintenance scheme 

1) ECM normal power supply is cut off at 
parking 
2) Idle speed valve terminals do not match 
with ECM terminals 
3) Blocked idle speed valve 
4) Idle speed valve is damaged  
5) ECM fault 

1) Resume ECM normal power supply 
 
2) Repair wire harness 
 
3) Clean the throttle body 
4) Replace the idle speed valve 
5) Replace the ECM 

 
 

Fault 10 

Poor/delayed acceleration 

Possible cause 

Reference maintenance scheme