Chery Tiggo 5 (T21). Manual - part 338

31–

56

31

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the HVAC control panel assembly connector 

K-012.

d. Disconnect the blower speed resistor connector K-004.
e. Using a digital multimeter, check for continuity between 

terminals of connector K-012 and connector K-004 to 
check if there is an open in system according to the table 
below.
Standard Condition

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the blower connector K-008. 
d. Disconnect the blower speed resistor connector K-004.
e. Using a digital multimeter, check for continuity between 

terminals of connector K-008 and connector K-004 to 
check if there is an open in system according to the table 
below.
Standard Condition

3

Check wire harness and connector (HVAC control panel assembly - blower speed resistor)

RT21311240

-

+

K-012

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

K-004

1

2

3

4

5

6

Multimeter 

Connection

Condition

Specified 

Condition

K-012 (28) - 

K-004 (4)

Always

Continuity

K-012 (26) - 

K-004 (5)

Always

Continuity

Repair or replace A/C wire harness and 
connector

NG

4

Check wire harness and connector (blower - blower speed resistor)

OK

RT21311250

-

+

K-004

1

2

3

4

5

6

K-008

1

2

Multimeter 

Connection

Condition

Specified 

Condition

K-008 (1) - K-004 

(2)

Always

Continuity

K-008 (2) - K-004 

(1)

Always

Continuity

Repair or replace A/C wire harness and 
connector

NG

OK

31–

57

31

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the blower speed resistor connector K-004.
d. Using a digital multimeter, check for continuity between 

terminal 6 of connector K-004 and body ground to check 
if ground circuit is in good condition according to the table 
below.
Standard Condition

a. Turn ignition switch to LOCK.
b. Disconnect the negative battery cable.
c. Disconnect the blower speed resistor connector K-004.
d. Connect the negative battery cable.
e. Turn ignition switch ON.
f. Using a digital multimeter, check the voltage between 

terminal 3 of connector K-004 and body ground to check 
if power supply circuit is in good condition according to 
the table below.
Standard Condition

5

Check wire harness and connector (blower speed resistor - body ground)

RT21311260

-

+

K-004

1

2

3

4

5

6

Multimeter 

Connection

Condition

Specified 

Condition

K-004 (6) - Body 

ground

Always

Continuity

Repair or replace A/C wire harness and 
connector

NG

6

Check wire harness and connector (blower speed resistor - battery)

OK

RT21311270

K-004

1

2

3

4

5

6

-

+

V

Multimeter 

Connection

Condition

Specified 

Condition

K-004 (3) - Body 

ground

Ignition switch ON

9 to 16 V

Check wire harness and connector among 
blower relay, fuse MF05, engine 
compartment fuse and relay box and 
blower speed resistor

NG

OK

31–

58

31

a. Remove the blower speed resistor.
b. Install the new blower speed resistor to vehicle.
c. Use X-431 3G diagnostic tester to check if DTCs are still output.

a. Reconnect all disconnected connectors securely.
b. Connect the negative battery cable.
c. Turn ignition switch ON.
d. Use X-431 3G diagnostic tester (the latest software) to record and clear DTCs stored in the HVAC control 

panel assembly. 

e. Turn ignition switch to LOCK and wait for a few seconds.
f. Turn ignition switch ON.
g. Use X-431 3G diagnostic tester to read DTCs stored in the HVAC control panel assembly again.

7

Check blower speed resistor

Replace blower speed resistor

8

Reconfirm DTCs

NO

YES

Replace HVAC control panel assembly 

NG

System operates normally

OK

31–

59

31

DTC

B2172

AC Recirculation Actuator

ET21310160

HVAC 
CONTROL 
PANEL

K-012

BATTERY

RF10

7.5A

RF21

10A

IGNITION SWITCH
   ON OR START

10

21

1

2

3

4

5

6

7

8

9 10 11 12

13

85

85

87

87 30

87 30

30

86

86

85

86

14 15 16 17 18 19 20 21 22 23 24

25

27

26

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

W

K-012

22 21 20

18

19

17 16 15

13

14

12 11 10

8

9

7

6

5

3

4

2

1

B

I-039

B

I-007

2

WB

BR

4

21

WV

19

Y

INSTRUMENT 
PANEL FUSE 
AND RELAY 
BOX

I-007

I-039

K-007

4

B

BrW

8

I-039

K-007

I-037

W

K-007

1

2

3

4

5

6

8

9

10 11

13 14

15 16

18

17

21

20

22

7

12

19

4 1

5 2

6 3

B

K-006

6

GY

8

4

BY

6

3

RY

7

1

2

Br

1

BBL

5

M

A

B

INNER AND OUTER 
CIRCULATION MOTOR

K-006