Chery Tiggo 5 T21 - Page 16

Training Center of After-Sales Department Chery International
1. Vehicle communication system
16
T21 software configuration process
DTC is found
Connect X-431
Read DTC
⑦
Clear DTC
No
No DTC
Right
Yes
Failed, reprogram
Failed , reprogram
Failed ,
reprogram
①
Read original BCM
configuration code
②
Power OFF, replace
BCM, input the
configuration code.
The code cannot be read
or communication fails.
Wrong
Success
③
Read and confirm the
BCM configuration code
④
Send VIN to Chery,
and get configuration code
⑤
Replace BCM, and
write the car
configuration code.
⑥
Whether the BCM
configuration codes are
all F?
Record the code
if it can be read.
2. T21 communication bus
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