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
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