Chery A15. Manual - part 163

  Chery A15 Maintenance Manual 

on when 

vehicle is 

running 

pressure switch. 

(3) High pressure 

switch (180kPa 

switch) fault. 

(4) Open circuit of 

high pressure switch. 

(5) Lubrication duct 

pressure meets no 

specified value. 

pressure. 

 

(1) Connect a diode test lamp 

between battery anode and low 

pressure switch, and the lamp is 

lighted. Start engine and increase 

engine speed slowly, the diode test 

lamp shall go out when pressure 

reaches 15-45KPa. If the lamp 

does not go out, the low pressure 

switch might be at fault; idle run 

the engine, engine oil pressure 

shall be higher than 45KPa and 

the test lamp shall go out. Any oil 

pressure lower than 15kPa 

indicates lubrication system fault. 

(2) Connect diode test lamp with 

high pressure switch and increase 

engine speed slowly. When engine 

oil pressure reaches 160- 200KPa, 

test lamp shall go on. If not on, 

high pressure switch probably is 

at fault. Further increase engine 

speed to 2000r/min, the oil 

pressure shall at least reach 

200kpa. If not, the lubrication 

system is at fault. 

If the problem still exists after 

lubrication system and pressure 

switches are all found normal in 

the above inspection, then check 

circuit for failure according to 

circuit diagram. 

Note: low pressure switch 

warning light goes on when the 

circuit is earthed, so earthed 

circuit is the key point when 

checking; while high pressure 

warning light  goes on when the 

  Chery A15 Maintenance Manual 

circuit is open or engine speed 

exceeds 2000r/min, therefore 

checking for open circuit is of 

greatest importance. 

Coolant 

warning 

light 

Coolant 

warning 

light keeps 

on when 

vehicle is 

running in 

both cold 

state and hot 

state 

(1) Low level in 

coolant tank. 

(2) Coolant level 

switch fault. 

(3) Coolant 

temperature warning 

switch fault. 

(4) Warning light 

circuit earthed. 

(1) Check enginge coolant to see 

if the temperature is too high or 

the level is too low. 

(2) If the above is normal, unplug 

coolant tank level switch. If 

warning light goes out, the level 

switch is at fault. 

(3) If the warning light keeps on, 

plug level switch and unplug 

coolant temperature warning 

switch. If the warning light goes 

out, the coolant temperature 

warning switch is at fault; and if 

the light keeps on, the circuit is 

probably earthed. 

 

Brake 

warning 

light 

Brake 

warning 

light keeps 

on when 

parking 

brake lever 

is released. 

(1) Brake fluid level 

too low. 

(2) Brake fluid level 

switch fault. 

(3) Parking brake 

switch fault. 

(4) Warning light 

circuit problem. 

(1) Check brake fluid to see if the 

level is too low. 

(2) If brake fluid level is normal, 

unplug brake fluid level switch. If 

warning light goes out, brake fluid 

level switch is at fault. 

(3) If warning light keeps on, 

unplug parking brake switch. If 

warning light goes out, parking 

brake switch is at fault; and if 

warning light still keeps on, the 

circuit is earthed somewhere. 

 

 

 

  Chery A15 Maintenance Manual 

 

Chapter Six: Electric Wiper and Windshield Washer 

 

Section One: Introduction to Wiper/Washer System 

 

Wiper mainly consists of motor assembly, trilink mechanism, swing bar with three 

direction ball knots and wiper blade. See figure (Wiper-1) for wiper and figure 

(Wiper-2) for motor. 

 

 

 

 

 

 

 

 

Wiper (Wiper-1) 

 

 

1-Permanent DC motor 
2-Gear worm reducer 

3-Wiper motor output shaft 

 

 

                                  Wiper Motor (Wiper-2) 

Wiper motor includes a PM DC small size motor and a gear worm reducer. In order to 

ensure that wiper swing bar and wiper blade will stop at the lower edge of windshield 

and remain parallel to it after working, an autostop positioning conducting strip is 

installed on the back side of reducer worm wheel output shaft, and three contacts 

  Chery A15 Maintenance Manual 

connecting to conducting strip are located on reducer rear cover. They work together, 

with the help of contact at zero position of the wiper switch, to provide the autostop 

positioning function of wiper. 

Washer includes a mini PM DC motor, a centrifugal water pump, nozzles, fluid tank 

and water pipe. Motor and water pump together compose a washer motor and water 

pump assembly, as shown in the figure (Wiper-6): 

 

 
1-Water inlet 
2-Impeller 
3-Pump 
4-Water outlet 

5-PM DC motor 

 

 

 

                      Washer Motor (Wiper-3) 

 

This assembly is fixed on fluid tank and forms a washer assembly with the tank, as the 

figure (Wiper-6) shows. Washer assembly is installed on left wing, and the volume of 

fluid tank is 5.lL. 

 

 

 

 

 

             

 

 

Washer motor

 

 
 
 
 
 

Washer Assembly (Wiper-4)