Chery T21 2014 Service Manual page 349

4
Check CAN line (BCM - A/C control panel)
a. Check CAN line.
Check for Open
Multimeter Connection
K-012 (13) - I-005 (A31)
K-012 (14) - I-005 (A30)
Check for Short
Multimeter Connection
K-012 (13) or I-005 (A31) - Body
ground
K-012 (13) or I-005 (A31) - Battery
positive
K-012 (14) or I-005 (A30) - Body
ground
K-012 (14) or I-005 (A30) - Battery
positive
Repair or replace CAN line
NG
5
Replace ECM, and check for DTCs
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.
Check or replace BCM and A/C control
NG
panel
System is operating normally.
Reassemble vehicle and perform a road test to confirm that malfunction reported by customer has
been repaired.
Chery Automobile Co., Ltd.
06 - SQR484F ENGINE MANAGEMENT SYSTEM
Specified
Condition
+
Continuity
Continuity
A17 A18
A1 A2
Specified
Condition
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
No continuity
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
No continuity
No continuity
No continuity
-
A19 A20 A21 A22 A23 A24 A25 A26 A27 A28
A3 A4 A5 A6 A7 A8 A9 A10 A11 A12
I-005
K-012
A29 A30 A31 A32
A13 A14 A15 A16
06
RT21065067
OK
OK
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