Nissan Frontier D22. Manual — part 455
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-923
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
UBS00DL0
BBWA1085E
EC-924
[VG33E]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
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 the ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
4
OR/B
ECM relay
(Self shutoff)
[Engine is running]
[Ignition switch: OFF]
●
For a few seconds after turning ignition switch
OFF
0 - 1.5V
[Ignition switch: OFF]
●
A few seconds passed after turning ignition
switch OFF
BATTERY VOLTAGE
(11 - 14V)
5
R/Y
EVAP canister purge
volume control sole-
noid valve
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
●
Engine speed is 2,000 rpm (More than 100
seconds after starting engine)
BATTERY VOLTAGE
(11 - 14V)
67
B/P
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
72
B/P
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
117
B/P
Current return
[Engine is running]
●
Idle speed
BATTERY VOLTAGE
(11 - 14V)
SEF994U
SEF995U
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-925
[VG33E]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Diagnostic Procedure
UBS00DL1
1.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIR-
CUIT
1.
Turn ignition switch OFF.
2.
Disconnect EVAP canister purge volume control solenoid valve
harness connector.
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.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors F36, M81
●
Harness connectors M65, E43
●
Harness for open or short between EVAP canister purge volume control solenoid valve and ECM relay
>> Repair harness or connectors.
3.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIR-
CUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 5 and solenoid terminal 2.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK (With CONSULT-II)>>GO TO 5.
OK (Without CONSULT-II)>>GO TO 6.
NG
>> GO TO 4.
AEC652A
Voltage: Battery voltage
SEF646W
Continuity should exist.
EC-926
[VG33E]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E43, M65
●
Harness connectors M81, F36
●
Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-II
1.
Start engine.
2.
Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II. Check that engine speed varies according to the
valve opening.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-II
1.
Check air passage continuity under the following conditions.
Without CONSULT-II
1.
Check air passage continuity under the following conditions.
OK or NG
OK
>> GO TO 7.
NG
>> Replace EVAP canister purge volume control solenoid
valve.
SEF985Y
Condition
PURG VOL CONT/V value
Air passage continuity
between A and B
100%
Yes
0%
No
SEF660U
Condition
Air passage continuity
between A and B
12V direct current supply between
terminals 1 and 2
Yes
No supply
No
SEF661U
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