Chery automobile Service Manual page 144

Diagnostic trouble code: P0202 "Circuit malfunction of the double cylinder fuel
injector"
Item
Operation procedure
No.
Connect the diagnostic tester and adaptor,
1 and turn the ignition switch to "ON"
position.
Disconnect the connector of the double
cylinder fuel injector on the wiring
harness, and inspect with multimeter to
2
verify that the voltage between 1# pin of
this connector and the negative grid of
power supply is about 12V.
Verify that the circuit between 1# pin of
the connector of the double cylinder fuel
3
injector and the main relay is open, or
short to ground.
Inspect with multimeter to verify that the
resistance between 1# and 2# pins of the
4
double cylinder fuel injector is within
11~16Ω under 20 .
Inspect with multimeter to verify that the
voltage between the connector of the
5 double cylinder fuel injector (2# pin) and
the negative grid of power supply is about
3.7V.
Verify that the circuit between the
connector of the double cylinder fuel
6
injector (2# pin) and 6# pin of ECU is
open or short to ground or power supply.
Inspection
results
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
G-35
Follow-up
procedure
Proceed to next
step.
Proceed to Step 4
Proceed to next
step.
Repair and replace
the wiring harness.
Proceed to next
step.
Proceed to next
step.
Replace the fuel
injector.
Refer to diagnosis
help.
Proceed to next
step.
Repair or replace
the wiring harness.
Refer to diagnosis
help.