Chery QQ - Page 260

Chery QQ Service Manual Chassis System
6、No DTC put out( cannot communicate with tester)
Possible cause
Open in ABS ECU source circuit or diagnosis
circuit
·Fuse burn out
·Diagnosis wire
loose or damage
·ABS ECU damage
·Tester problem
N
o
Yes
Fix tester and try
again
Can tester communicate wit
h
other MK20 ABS ECU
Abnormal
Replace
Check ABS fuse
N
orma
N
o Abnormal
Yes
On
No
Fix diagnosis plug or harness
Any display on tester Check source wire,
ground wire, an
d
connector
Check terminal is conducte
d
with diagnosis terminal
（MK20I/E : terminal 7）
Fix o
r
replace
Replace ABS ECU
50
Chery Automobile Co., Ltd