Geely Diagnosis Flow. Manual part — 95

377

No.275 The evaporator temperature sensor is in poor condition.

(code display 03)

No.276 The temperature adjustment performer is in poor condition;

(code display 04)

1. The temperature adjustment
performer is in bad condition;
2.The A/C controller is in poor condition

1. B10, B9 and B13 wires inside B plug are in poor
contact with the performer or broken;
2. The temperature adjustment performer is in bad
condition or the mechanism is seized;
3. The A/C controller is in bad condition.

The A/C controller is in bad
condition

1. Turn the ignition switch to "ON";
2. Remain the environment temperature at about 25℃ (or unplug the temperature sensor
inside and outside the vehicle);
2. Test the voltage between B9 and B2 (ground lead) pins with a meter;
3. Adjust the TEMP+ or the TEMP- key on the control panel.

Does the voltage between B9 and B2 continuously changed
between 1.1V and 4.0V when the design temperature varies
continuously between HI and LO?

Does the voltage value
remain constant?

A/C controller

Yes

Yes

No

No

The A/C controller is in bad condition

B4 and B1 metal plug-in card inside B plug are in
poor contact with the controller socket;

1. Harness or metal plug-in unit connected with B4 and B1 is
in bad condition;
2. The evaporator temperature sensor is in bad condition.

Test the ohmic value between B4 and B1 of B plug at the harness end with the meter

Pull out B plug behind the control panel

Power on and test if the voltage between B4 and B1 is 0.5V≤Vi≤4.8V

Yes

Vehicle exterior temperature sensor

Is the ohmic value between 500 and
100K?

Yes

No

B3

A/C controller

No

B2

B3

378

故障6-

No.277 The sun sensor is in poor condition.(code display 05)

No.278 The fan governing module is in poor condition;

(code display 06)

The sun sensor is
in poor condition.

1. Pull out B plug behind the control panel; let the light sensitive
head fully exposed under the sun;
2. Connect B5 pin at the harness end B plug with the digital
multimeter red pen and connect B2 (ground lead) with the black
pen.

1.Pull out B plug behind the control panel;
2.Cover the light sensitive head of the sun sensor
with a light-tight object.

Test the ohmic value between B2 and B5 of B plug at
the harness end with the meter

1. Harness or metal plug-in unit connected with B2
and B3 is in poor condition;
2. The sun sensor is in poor condition.

The a/c controller is
in poor condition

Power on and test if the voltage between B2 and B5
is0.7V≤Vi≤4.85V

Test if the ohmic value between B5 and B2 is
reduced apparently?

Is the ohmic value less than 100K?

A/C controller

Yes

No

Yes

No

Yes

No

1.The harness connected with

B7 and the plug-in unit are in

poor condition;
2.The a/c controller is in poor
condition.

1The governing module is in poor
condition;
2.The plug-in unit at DS end of the
governing module is in poor contact.

Test the voltage between B7 and B2 with a meter from gear 1 to gear 5. The normal
voltage shall be as follow: 3.9V at gear 1; 4.0V at gear 2 and 4.3V at gear 3; 4.5V at
gear 4; 4.8V at gear 5.

1.Turn the ignition switch to "ON";
2.Adjust the "air volume plus" key on the control panel. There has no air or abnormal
air volume variation from gear 1 to gear 5; the air volume is in normal condition at the
Max. gear 6.

Fan re

la

y

Hi

gh speed

real

y

Is the voltage value in normal
condition?

3BW

M

Blue

Blower

Fan ground lead

black

blue/blac

k

grey

/b

ro

wn

blue/bro

w

n

E

A/c controller

spee

d r

e

gu

la

tio

n

m

o

du

le

Yes

No

GAUSE meter

40A

800 power line (2)

379

No.279 The high speed relay is in poor condition; (code display 07)

No.280 The rear defrosting function is invalid

1. The high-speed relay socket is in bad

contact; A/c controller
2. The high-speed relay is in bad
condition.

1.The GAUSE meter wire is in bad condition;

2. The high-speed relay socket is in bad

contact;

3. The high-speed relay is in bad condition.

1. Turn the ignition switch to gear "ON";
2. Adjust the "air volume plus" key on the control panel. There has no
air or abincreaseunsharpness air volume variation from gear 1 to gear
5, the air volume does not increase apparently at the Max. gear 6.

Test the voltage value between B6 and B2 with a
meter. The normal value shall be 13V at gears
excepet gear 6 and no more than 1V at gear 6.

1. The controller card connected with B6

is in bad contact;

2. The a/c controller is in bad condition;

GAUSE meter

Fan re

la

y

Blue

Blower

M

E

Fan ground lead

black

blue/blac

k

grey

/b

ro

wn

blue/bro

w

n

A/c controller

spee

d r

e

gu

la

tio

n

m

o

du

le

Is voltage value at gear 5 or gear 6 close to 0V?

Is the voltage value at gear 6 ≤ 1V?

Yes

No

Yes

No

Rear

de

fr

os

ting

co

ntro

l

1. The A3 plug-in unit is in bad contact with the
controller socket;
2. The a/c controller is in bad condition;

Test the voltage value between A3 and the ground with a
meter. The normal value shall be 13V at light off and ≤ 1V
at light on.

1. Turn the ignition switch to gear "ON";
2. Operate the "rear defrosting" key on the control panel; the defrosting
lamp will light up after pressing the key once and will go out after
pressing it again.

1. The GAUSE meter wire is broken;

2. The rear defrosting relay socket is in bad contact;
3. The rear defrosting relay is in bad condition;

1. The rear defrosting relay socket is in bad
contact;

2. The rear defrosting relay is in bad condition;
3. The rear defrosting heater and concerned
harness problem.

G

reen

/W

hi

te

800 powe line (2)

2#

30A

A3

A/C controller

Is the voltage value at light on or ligh off close to 0V?

Is the voltage value no more than 1V
when the light is on?

380

No.281 The display screen has no display

No.282 The internal and external circulation regulation is invalid