Chery A11 2003 - Page 714

6 No Diagnostic Code Output (No communication with scan tool) Possible Causes
［［Note］When no communication with scan tool, it may be caused by open
ABS ECU power and diagnostic circuit.
● blown fuse
●broken diagnostic cable and loose
connector
●defective ABS ECU
●scan tool problem
Can scan tool communicate with
MK 20 ABS ECU on other vehicle?
Scan tool problem. Repair it an
d
check again.
Check ABS voltage supply fuse.
Replace fuse.
Is there information displayed
on scan tool screen?
Remove ABS ECU connector.
Check ABS ECU terminal 13 an
d
diagnostic socket
(terminal 7 in scan tool).
Check diagnostic socket voltage
and ground wire, diagnostic wire
and connection. Normal?
Repair diagnostic socket
or ABS wiring harness.
N
O
YES
N
OT OKAY
OKAY
N
O
N
O
Repair socket
Connector
or wiring harness.
YES
N
O
23
Chery SQR7160 series sedan ABS system－fault diagnostic and repairing