Infiniti G20 (P11). Manual — part 243
![](/vehicles/zatt/wheiso/zix/pickit.png)
ECM Terminals and Reference Value
NCEC0646
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM’s transistor. Use a ground other than ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
14
P
EVAP canister purge
volume control sole-
noid valve
[Engine is running]
I
Idle speed
BATTERY VOLTAGE
(11 - 14V)
SEF994U
[Engine is running]
I
Engine speed is about 2,000 rpm (More than 100
seconds after starting engine)
BATTERY VOLTAGE
(11 - 14V)
SEF995U
On Board Diagnosis Logic
NCEC0533
Malfunction is detected when an improper voltage signal is sent to
ECM through the valve.
Possible Cause
NCEC0534
I
Harness or connectors
(The valve circuit is open or shorted.)
I
EVAP canister purge volume control solenoid valve
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
(CIRCUIT)
ECM Terminals and Reference Value
EC-383
![](/vehicles/zatt/wheiso/zix/vilo.png)
SEF058Y
DTC Confirmation Procedure
NCEC0535
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm battery
voltage is more than 11V at idle.
WITH CONSULT-II
NCEC0535S01
1)
Turn ignition switch “ON”.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Start engine and let it idle for at least 13 seconds.
4)
If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-386.
WITH GST
NCEC0535S02
Follow the proocedure “WITH CONSULT-II” above.
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
(CIRCUIT)
DTC Confirmation Procedure
EC-384
![](/vehicles/zatt/wheiso/zix/apl.png)
Wiring Diagram
NCEC0536
TEC711
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
(CIRCUIT)
Wiring Diagram
EC-385
![](/vehicles/zatt/wheiso/zix/mint.png)
Diagnostic Procedure
NCEC0537
1
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
SEF851X
3. Turn ignition switch “ON”.
4. Check voltage between EVAP canister purge volume control solenoid valve terminal 1 and ground with CONSULT-II or
tester.
SEF206W
Voltage: Battery voltage
OK or NG
OK
©
GO TO 3.
NG
©
GO TO 2.
2
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F13, F51
I
Harness connectors F24, M62
I
Fuse block (J/B) connector M2
I
10A fuse
I
Harness for open or short between EVAP canister purge volume control solenoid valve and fuse
©
Repair harness or connectors.
DTC P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
(CIRCUIT)
Diagnostic Procedure
EC-386
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