Chery QQ - Page 428

Chery QQ Service Manual
Phenomenon
Possible position
of the fault
Diagnosis and
measurement
Result Reason
power source is
out of condition
F6 （ 20A ） fuse
voltage 12V
F6 is out of
condition
Without air conditioner
relay power source
air conditioner
relay is out of
conditon
No. 30, 87 pin
voltates for relay
operation are 12V
Relay is out of
condition
Contacts is out of
condition
Air blower
switch
Air blower switch
disconnects the
no.2 pin ground
strap connection
Air blower switch
is out of condition
or no.1 pin does not
ground
Without ground strap
connection signal
output
A/C switch A/C switch on no.1
pin
A/C switch or
compression is out
of condition
Without ground strap
connection signal
output
pressure switch is
out of condition
Remove the joint,
direct cross
connection
Switch is out of
condition or
insufficient
pressure
Pressure switch can not
be turned on
temperature
sensor for
evaporator is out
of condition
Resistance value is
over 2KΩ
Sensor is out of
condition or
improper
installation
Detection temperature
is too low
water temperature
for engine is too
low
Check the engine
values
water temperature
sensor is out of
condition
water temperature is too
low , compressor does
not work
The engine is
accelerating
Gasoline throttle
position sensor
normal normal operation
conditions
The
compressor
does not work
when the air
conditioner
switch is
turned on
ECU is out of
condition
Measure the ECU
no.41, 22 pins
ECU or wiring ECU cannot deal with
the A/C swich signals
Air blower
does not
duty relay is out
of condition
No.85, 86, 30, 87
pins of the relay
Wiring is out of
condition
Without +12V supplied
to air blower
Chery Automobile Co.,Ltd
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