JAC J2 User Manual



Maintenance Manual for J2 Sedan
Electronic Control System
of Engine
218
S/N
Step
Check
result
Subsequent
step
Y
es To
Step
6
4
Check if the voltage between Pin 2# of phase sensor and the negative
pole of power source is about 9.9V.
No
Next step
Yes
Repair or replace
the harness
5
Check if the circuit
connecting to Pin 2# of phase
sensor connector to
Pin 42# of ECU is open or short to power source or ground.
No
Next step
Y
es
Diagnosi
s
help
6
Check
if
the
signal
panel
of
camshaft
is
good.
No
Replace the
signal panel
Fault code: P0343 “the phase sensor is short to power source”
S/N
Step
Check
result
Subsequent
step
1
Connect the diagnosis device and adapter, and turn the ignition switch
to ON position.
Next step
Y
es
To
Step
4
2
Unplug the phase sensor connector on the harness, and check if the
voltage between Pins 3# and 1# of this connector is about 12V by the
multimeter.
No
Next step
Yes
Repair or replace
the harness
3
Check if the circuit connecting Pin 3# of phase sensor to Pin 87# of
main relay is open or short to
ground.
Check if Pin
1# of phase sensor
is grounded improperly
.
No
Next step
Y
es To
Step
6
4
Check if the voltage between Pin 2# of phase sensor and the negative
pole of power source is about 9.9V.
No
Next step
Yes
Repair or replace
the harness
5
Check if the circuit
connecting to Pin 2# of phase
sensor connector to
Pin 42# of ECU is open or short to power source or ground.
No
Next step
Y
es
Diagnosi
s
help
6
Check
if
the
signal
panel
of
camshaft
is
good.
No
Replace the
signal panel
Fault code: P0444 “the control circuit of canister control valve is open”
S/N
Step
Check
result
Subsequent
step
1
Connect the diagnosis device and adapter, and turn the ignition switch
to ON position.
Next step
Y
es To
Step
4
2
Unplug the connector of canister control valve 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 multimeter.
No
Next step
Yes
Repair or replace
the harness
3
Check if the circuit of power supply side of canister control valve is
open or short to ground.
No
T
o Step 2
4
Check if the resistance between Pins 1# and 2# of the canister control
Y
es
Next
step

JAC J2 Specifications

General

Brand	JAC
Model	J2
Category	Automobile
Language	English