Infiniti FX35 / FX45. Manual — part 399
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-357
< SERVICE INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Wiring Diagram
INFOID:0000000001326181
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
CAUTION:
TBWM1390E
EC-358
< SERVICE INFORMATION >
[VQ35DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis Procedure
INFOID:0000000001326182
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.
3.
Turn ignition switch ON.
TER-
MI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
45
GY
EVAP canister purge volume
control solenoid valve
[Engine is running]
• Idle speed
• Accelerator pedal is not depressed even
slightly, after engine starting
BATTERY VOLTAGE
(11 - 14V)
[Engine is running]
• Engine speed is about 2,000 rpm (More than
100 seconds after starting engine)
BATTERY VOLTAGE
(11 - 14V)
111
W/B
ECM relay
(Self shut-off)
[Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF
0 - 1.5V
[Ignition switch: OFF]
• More than a few seconds after turning igni-
tion switch OFF
BATTERY VOLTAGE
(11 - 14V)
119
120
R
R/B
Power supply for ECM
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
SEC990C
SEC991C
PBIB2097E
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-359
< SERVICE INFORMATION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4.
Check voltage between EVAP canister purge volume control
solenoid valve terminal 1 and ground with CONSULT-III or
tester.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E211, M41
• Harness connectors M82, F102
• Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
• 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.
3.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between ECM terminal 45 and EVAP canister purge volume control solenoid
valve terminal 2. Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK (With CONSULT-III)>>GO TO 4.
OK (Without CONSULT-III)>>GO TO 5.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-III
1.
Reconnect all harness connectors disconnected.
2.
Start engine.
3.
Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT-III. Check that engine speed var-
ies according to the valve opening.
OK or NG
OK
>> GO TO 6.
NG
>> GO TO 5.
5.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-360, "Component Inspection"
OK or NG
OK
>> GO TO 6.
NG
>> Replace EVAP canister purge volume control solenoid valve.
6.
CHECK INTERMITTENT INCIDENT
>> INSPECTION END
Voltage: Battery voltage
PBIB0148E
Continuity should exist.
EC-360
< SERVICE INFORMATION >
[VQ35DE]
DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
Component Inspection
INFOID:0000000001326183
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-III
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
Without CONSULT-III
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
Removal and Installation
INFOID:0000000001326184
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Condition
(PURG VOL CONT/V value)
Air passage continuity
between A and B
100%
Yes
0%
No
PBIB0149E
Condition
Air passage continuity
between A and B
12V direct current supply between
terminals 1 and 2
Yes
No supply
No
PBIB0150E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст