Chery Tiggo 5 (T21). Manual — part 85
06–
182
06
DTC
U0164-87 Lost Communication With CLM
ET21065023
2-1
2-17
13
CAN H1
CAN L1
CAN H2
CAN L2
14
PW
GB
OB
O
OB
O
ECM-2
ECM-1
E-033
E-035
2-63
2-64
1-47
Br
Br
B
B
Br
B
1-48
E-026
E-028
37 38 39 40 41 42 43 44 45 46
47
48
25 26 27 28 29 30 31 32 33 34
35
36
13 14 15 16 17 18 19 20 21 22
23
24
1
2
3
4
5
6
7
8
9 10
11
12
B
E-033
B
E-035
49 50 51
63
64
15
16
31
32
47
48
33 34 35
17 18 19
1
2
3
52 53 54 55 56 57 58 59 60 61 62
36 37 38 39 40 41 42 43 44 45 46
20 21 22 23 24 25 26 27 28 29 30
4
5
6
7
8
9 10 11 12 13 14
A32
A31
A30
A29
A28
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A27
A26
A25
A24
A23
A22
A21
A20
A19
A18
A17
L
I-005
E-027
I-034
9
10
I-039
K-007
13
14
1
2
3
4
5
6
7
8
9 10
11
12
13
14 15
W
E-027
A31
A30
BCM(A)
I-005
A15
CAN H1
CAN L1
CAN H2
CAN L2
A14
HVAC
CONTROL
PANEL
K-012
W
K-012
W
K-007
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
1
2
3
4
5
6
8
9
10 11
13 14
15 16
18
17
21
20
22
7
12
19
06–
183
06
DTC Confirmation Procedure
Confirm that battery voltage is over 12 V before performing the following procedures.
Turn ignition switch to LOCK.
Connect X-431 3G diagnostic tester (the latest software) to Data Link Connector (DLC).
Turn ignition switch to ON.
Use X-431 3G diagnostic tester to record and clear the DTCs stored in the ECM.
Start the engine and warm it up to normal operating temperature, and then select Read Code.
If the DTC is detected, the malfunction indicated by the DTC is current. Go to the diagnosis procedure - Step 1.
If DTC is not detected, the malfunction indicated by the DTC is intermittent (
).
Diagnosis Procedure
a. Turn ignition switch to LOCK.
b. Check ECM grounds E-026 and E-028 (
a. Disconnect ECM connector E-033.
b. Disconnect A/C control panel connector K-012.
c. Disconnect BCM connector I-005.
d. Check if connectors are normal.
DTC Code
DTC Definition
DTC Detection
Condition
Possible Cause
U0164-87
Lost Communication
With CLM
Ignition switch ON
Engine running
CAN line or connector
ECM
CLM (A/C control module)
BCM
CAUTION
When performing circuit diagnosis and test, always refer to the circuit diagram for specific circuit and
component information.
1
Check ECM ground point
Repair or replace ground wire harness or
ground point
NG
2
Check ECM connector, A/C control panel connector and BCM connector
OK
Repair or replace connectors
NG
OK
06–
184
06
a. Check CAN line.
Check for Open
Check for Short
3
Check CAN line (ECM - BCM)
E-033
49 50 51
63
64
15
16
31
32
47
48
33 34 35
17 18 19
1 2 3
52 53 54 55 56 57 58 59 60 61 62
36 37 38 39 40 41 42 43 44 45 46
20 21 22 23 24 25 26 27 28 29 30
4 5 6 7 8 9 10 11 12 13 14
I-005
A32
A31
A30
A29
A28
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A27
A26
A25
A24
A23
A22
A21
A20
A19
A18
A17
-
+
RT21065065
Multimeter Connection
Specified
Condition
E-033 (1) - I-005 (A15)
Continuity
E-033 (17) - I-005 (A14)
Continuity
Multimeter Connection
Specified
Condition
E-033 (1) or I-005 (A15) - Body
ground
No continuity
E-033 (1) or I-005 (A15) - Battery
positive
No continuity
E-033 (17) or I-005 (A14) - Body
ground
No continuity
E-033 (17) or I-005 (A14) - Battery
positive
No continuity
Repair or replace CAN line
NG
OK
06–
185
06
a. Check CAN line.
Check for Open
Check for Short
a. Use X-431 3G diagnostic tester to read the ECM DTC.
b. Refer to "DTC Confirmation Procedure".
c. Check if DTC U0164-87 still exists.
4
Check CAN line (BCM - A/C control panel)
I-005
A32
A31
A30
A29
A28
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A27
A26
A25
A24
A23
A22
A21
A20
A19
A18
A17
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
-
+
RT21065067
Multimeter Connection
Specified
Condition
K-012 (13) - I-005 (A31)
Continuity
K-012 (14) - I-005 (A30)
Continuity
Multimeter Connection
Specified
Condition
K-012 (13) or I-005 (A31) - Body
ground
No continuity
K-012 (13) or I-005 (A31) - Battery
positive
No continuity
K-012 (14) or I-005 (A30) - Body
ground
No continuity
K-012 (14) or I-005 (A30) - Battery
positive
No continuity
Repair or replace CAN line
NG
5
Replace ECM, and check for DTCs
OK
Check or replace BCM and A/C control
panel
NG
System is operating normally.
Reassemble vehicle and perform a road test to confirm that malfunction reported by customer has
been repaired.
OK
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