Maintenance Manual for Chery·Windcloud Marelli EFI System
No
Repair or
replace wire
harness
Failure: too high system votage
Step Operation Result Solution
1
Connect scanner and commutator, and then turn
ignition switch to “OFF”.
Go to next step
Yes Go to next step
2
Check battery voltage with a multimeter to see if it
is around 12V.
No
Replace
battery
Yes Go to next step
3
Start engine, check charging voltage of generator at
different engine speeds to see if it maintains within
9-16V.
No
Replace
generator
Yes
Diagnosis
Instruction
4
Check ground point of engine wire harness to see if
it isin good condition.
No
Repair or
replace wire
harness
Failure: non-programmed check code error of ECU
Step Operation Result Solution
1
Connect scanner and commutator, and then turn
ignition switch to “ON”.
Go to next step
Yes Go to next step
2
Clear failure code, recheck the failure to see if it is a
constant failure.
No System normal
3 Replace ECU. Finish
Failure: non-programmed diagnostic data identification code error of ECU
Step Operation Result Solution
1
Connect scanner and commutator, and then turn
ignition switch to “ON”.
Go to next step
Yes Go to next step
2
Clear failure code, recheck the failure to see if it is a
constant failure.
No System normal
3 Replace ECU. Finish
Failure: control circuit error of air conditioner compressor relay
Step Operation Result Solution
32
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