Chery A15. Manual - part 267

 
3. Troubleshooting procedure 

Step Description 

Yes 

No 

1 

Will the troubleshooting procedure be 
implemented? 

To Step 2 

Troubleshooting 
procedure 

2 

Turn off the ignition switch, unfix 
Terminal B of control solenoid valve and 
turn on the ignition switch but do not turn 
on the engine, measure if there is a 12V 
power supply to the fuse.  

To Step 4 

To Step 3 

3 

Check if the circuit between the fuse and 
the control solenoid valve suffers any of 
the following:  
Ground fault (Ω stage) 
Open circuit (Ω stage) 
Short circuit with the power source 
(anode): (voltage stage) 

Confirm 
repair 

 

4 

Check if the resistance of the solenoid 
valve is 5-50 Ω. 

To Step 5 

To Step 6 

5 

Turn off the ignition switch, unfix the 
ECM terminal and check if the circuit 
between the ECM and the control 
solenoid valve suffers any of the 
following:  
Ground fault (Ω stage) 
Open circuit (Ω stage) 
Short circuit with the power source 
(anode): (voltage stage) 

Confirm 
repair 

To Step 7 

6 

Replace the control solenoid valve and 
confirm the repair. 

 

 

7 

Replace the engine control module and 
confirm the repair. 

 

 

 
 
Thirteen. Troubleshooting code – water tank low-speed fan relay 
 
1. Troubleshooting code setup conditions and emergency scheme 
P0480 Short circuit between water tank 
low-speed fan relay drive circuit and the 
power source anode 

P0480 Open circuit of water tank low-speed 
fan relay drive circuit or its ground fault 

Ju

dg

m

en

t 

co

nd

iti

on

s

•  Duration > 3s 

Ju

dg

m

en

t 

co

nd

iti

on

s 

- Duration > 3s 

 

E

m

er

ge

nc

y s

ch

em

e 

•  Turn on the fault indicator light 

until the fault is eliminated  

•  Nil 
•  The fan does not work until the 

water temperature rises to 98 ℃. 
Then the high-speed fan is 
started.  

E

m

er

ge

nc

y s

ch

em

e 

•  Turn on the fault indicator light 

until the fault is eliminated  

•  Nil 
•  The fan does not work (open 

circuit) until the water 
temperature rises to 98 ℃. Then 
the high-speed fan is started. 

•  The fan works as usual (ground 

fault) 

 
 
2. Relevant computer terminals and measurement 

Wiring terminal 

ECM 

Low-speed fan 
relay 

Normal measurement signal

Storage battery 

\

 

See electrical 
system 
description 

12V 

Relay drive 

01 

See electrical 
system 
description 

In operation = 0V 
Out of operation = 12V 

 
 
3. Troubleshooting procedure 

Step Description 

Yes 

No 

1 

Will the troubleshooting procedure be 
implemented? 

To Step 2 

Troubleshooting 
procedure 

2 

Check and make sure that the fuse is not 
damaged. Unfix the fittings for water tank 
fan motor relay and the ECM; turn on the 
ignition switch and measure if the voltage 
between the ECM Terminal 1 and the 
ground is higher than 1.0V.  

To Step 
11 

To Step 3 

3 

Measure if the resistance of the water tank 
fan relay coil is within the range of 50-80 
Ω

.  

To Step 4 

To Step 12 

4 

Check if there is any broken fuse.  

To Step 
13 

To Step 5 

5 

Measure if the voltages between relay 
Terminal 85, 86 and the ground are higher 
than 10V.  

To Step 6 

To Step 14 

6 

Measure if the resistance between ECM 
Terminal 1 and Terminal 85 of the fan 
relay is within the range of 0-2 Ω 

To Step 7 

To Step 15 

7 

Check if the fuse of the engine fault 
indicator light is broken.  

To Step 
16 

To Step 8 

 

8 

Check if the circuit between the engine 
fault indicator light and the fuse suffers 
any open circuit or ground fault.  

To Step 
17 

To Step 9 

9 

Check if the circuit between the engine 
fault indicator light and the ECM suffers 
any open circuit or ground fault. 

To Step 
18 

To Step 10 

10 

Turn on the ignition switch, ground ECM 
Terminal 1 and see if the engine fault 
indicator light is on or not.  

To Step 
19 

To Step 11 

11 

Repair the short circuit to the power 
source.  

 

 

12 

Replace the fan relay.  

 

 

13 

Repair the open circuit.  

 

 

14 

Repair the ground fault.  

 

 

15 

Repair the open circuit.  

 

 

16 

Replace the fuse on the circuit of engine 
fault indicator light.  

 

 

17 

Repair the open circuit or ground fault of 
the circuit between engine fault indicator 
light and the fuse.  

 

 

18 

Repair the open circuit or ground fault of 
the circuit between engine fault indicator 
light and the ECM.  

 

 

19 

Replace the engine control module 
(ECM). 

 

 

 
 
Fourteen. Troubleshooting code – water tank high-speed relay 
 
1. Troubleshooting code setup conditions and emergency scheme 
P0481 Short circuit between water tank 
high-speed fan relay drive circuit and the 
power source anode 

P0481 Open circuit of water tank high-
speed fan relay drive circuit or its ground 
fault 

Ju

dg

m

en

t 

co

nd

iti

on

s

•  Duration > 3s 

Ju

dg

m

en

t 

co

nd

iti

on

s 

•  Duration > 3s 

E

m

er

ge

nc

y 

sc

he

m

e

•  Turn on the fault indicator light 

until the fault is eliminated  

•  Nil 
 

E

m

er

ge

nc

y 

sc

he

m

e 

•  Turn on the fault indicator light 

until the fault is eliminated  

•  Nil 

•  The fan works as usual (ground 

fault) 

 
 

 

 
 
 
2. Relevant computer terminals and measurement 

Wiring terminal 

ECM 

High-speed fan 
relay 

Normal measurement signal

Storage battery 

\

 

See electrical 
system 
description 

12V 

Relay drive 

08 

See electrical 
system 
description 

In operation = 0V 
Out of operation = 12V 

 
3. Troubleshooting procedure 

Step Description 

Yes 

No 

1 

Will the troubleshooting procedure be 
implemented? 

To Step 2 

Troubleshooting 
procedure 

2 

Check and make sure that the fuse is not 
damaged. Unfix the fittings for water tank 
fan motor relay and the ECM; turn on the 
ignition switch and measure if the voltage 
between the ECM Terminal 8 and the 
ground is higher than 1.0V.  

To Step 
11 

To Step 3 

3 

Measure if the resistance of the water tank 
fan relay coil is within the range of 50-80 
Ω

.  

To Step 4 

To Step 12 

4 

Check if there is any broken fuse.  

To Step 
13 

To Step 5 

5 

Measure if the voltages between relay 
Terminal 85, 86 and the ground are higher 
than 10V.  

To Step 6 

To Step 14 

6 

Measure if the resistance between ECM 
Terminal 8 and Terminal 85 of the fan 
relay is within the range of 0-2 Ω 

To Step 7 

To Step 15 

7 

Check if the fuse of the engine fault 
indicator light is broken.  

To Step 
16 

To Step 8 

8 

Check if the circuit between the engine 
fault indicator light and the fuse suffers 
any open circuit or ground fault.  

To Step 
17 

To Step 9 

9 

Check if the circuit between the engine 
fault indicator light and the ECM suffers 
any open circuit or ground fault. 

To Step 
18 

To Step 10 

10 

Turn on the ignition switch, ground ECM 
Terminal 8 and see if the engine fault 
indicator light is on or not.  

To Step 
19 

To Step 11