Maintenance Manual for J2 Sedan
Electronic Control System
215
Fault code: P0202 “the control circuit of fuel injector of Cylinder 2# is open”
1
Connect the diagnosis device and adapter, and turn the ignition switch
es To
Unplug the connector of the fuel injector of Cylinder 2# on the
harness, and check if the voltage between Pin 1# of this connector
and the negative pole of power source is about 12V by the
Yes
Check if the circuit between Pin 1# of the fuel injector connector of
Cylinder 2# and the main relay is
es
step
Check if the resistance between Pins 1# and 2# of the fuel injector of
der 2
0
d 13
the mult
.
es
s
5
Check if the voltage between Pin 2# of the fuel injector of Cylinder
2# and the negative pole of power source is about 3.7V by the
Yes
6
Check if the circuit between Pin 2# of the fuel injector connector of
Cylinder 2# and Pin 63 of ECU is open or short to power source or
Fault code: P0203 “the control circuit of fuel injector of Cylinder 3# is open”
S/N
result
1
Connect the diagnosis device and adapter, and turn the ignition switch
es To
Unplug the connector of the fuel injector of Cylinder 3# on the
harness, and check if the voltage between Pin 1# of this connector
and the negative pole of power source is about 12V by the
Yes
3
Check if the circuit between Pin 1# of the fuel injector connector of
Cylinder 3# and the main relay is
es
Check if the resistance between Pins 1# and 2# of the fuel injector of
der
t 20 is be
11
13Ω
e mul
es
s
5
Check if the voltage between Pin 2# of the fuel injector of Cylinder
3# and the negative pole of power source is about 3.7V by the
Yes
6
Check if the circuit between Pin 2# of the fuel injector connector of
Cylinder 3# and Pin 49 of ECU is open or short to power source or
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