Nissan Maxima. Instruction — part 460
EC-324
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Select “PURG VOL CN/V P1444” of “EVAPORATIVE SYSTEM” in “DTC WORK SUPPORT” mode with
CONSULT.
5. Touch “START”.
6. Start engine and let it idle until “TESTING” on CONSULT changes to “COMPLETED”. (It will take approxi-
mately 10 seconds.)
If “TESTING” is not displayed after 5 minutes, retry from step 2.
7. Touch “SELF-DIAG RESULT”.
Which is displayed on CONSULT?
OK
>> INSPECTION END
NG
>> Go to
4.
PERFORM DTC CONFIRMATION PROCEDURE A
With GST
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
3. Start engine and wait at least 60 seconds.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> GO TO 5.
5.
PERFORM DTC CONFIRMATION PROCEDURE
With GST
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and let it idle for at least 20 seconds.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010095010
Regarding Wiring Diagram information, refer to
.
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.
ECM
Ground
Voltage (V)
Connector
Terminal
E10
95
(Fuel tank temperature sensor signal)
Ground
3.1 - 4.0
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-325
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
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A
EC
N
P
O
4. Check the voltage between EVAP canister purge volume control
solenoid valve harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E11, F2
• Junction block connectors E44, E45
• 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, 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 the continuity between EVAP canister purge volume control solenoid valve harness connector and
ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check that water is not inside connectors.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-17, "Removal and Installation"
.
5.
CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
EC-346, "Component Inspection"
Is the inspection result normal?
YES-1 >> With CONSULT: GO TO 6.
YES-2 >> Without CONSULT: GO TO 7.
NO
>> Replace EVAP control system pressure sensor. Refer to
FL-17, "Removal and Installation"
.
6.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1. Turn ignition switch OFF.
2. Reconnect harness connectors disconnected.
3. Start engine.
EVAP canister purge volume control
solenoid valve
Ground
Voltage
Connector
Terminal
F29
1
Ground
Battery voltage
PBIB0080E
EVAP canister purge volume con-
trol solenoid valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
F29
2
F14
25
Existed
EC-326
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
4. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT. Check that engine speed varies
according to the valve opening.
Does engine speed vary according to the valve opening?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-327, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace EVAP canister purge volume control solenoid valve.
8.
CHECK RUBBER TUBE FOR CLOGGING
1. Disconnect rubber tube connected to EVAP canister vent control valve.
2. Check the rubber tube for clogging.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Clean the rubber tube using an air blower.
9.
CHECK DRAIN FILTER
EC-327, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace drain filter.
10.
CHECK EVAP CANISTER VENT CONTROL VALVE
EC-335, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Replace EVAP canister vent control valve. Refer to
FL-16, "Removal and Installation"
.
11.
CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Remove EVAP canister with EVAP canister vent control valve and
EVAP control system pressure sensor attached. Refer to
"Removal and Installation (EVAP Canister)"
.
Does water drain from the EVAP canister?
YES
>> GO TO 12.
NO
>> GO TO 14.
12.
CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> GO TO 13.
13.
DETECT MALFUNCTIONING PART
Check the following.
• EVAP canister for damage
• EVAP hose between EVAP canister and drain filter for clogging or poor connection
PBIB1213E
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-327
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
>> Repair hose or replace EVAP canister. Refer to
FL-14, "Removal and Installation (EVAP Canis-
.
14.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000010095011
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
1.
CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4. Turn ignition switch ON.
5. Select “PURG VOL CONT/V” in “ACTIVE TEST” mode with CONSULT.
6. Touch “Qd” and “Qu” on CONSULT screen to adjust “PURG
VOL CONT/V” opening and check air passage continuity of
EVAP canister purge volume control solenoid valve under the
following conditions.
Without CONSULT
1. Turn ignition switch OFF.
2. Disconnect EVAP canister purge volume control solenoid valve harness connector.
3. Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4. Check air passage continuity of EVAP canister purge volume
control solenoid valve under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace EVAP canister purge volume control solenoid
valve
DRAIN FILTER
1. Check visually for insect nests in the drain filter air inlet.
2. Check visually for cracks or flaws in the appearance.
3. Check visually for cracks or flaws in the hose.
Condition
(PURG VOL CONT/V value)
Air passage continuity
between (A) and (B)
100%
Existed
0%
Not existed
PBIB2058E
Condition
Air passage continuity
between (A) and (B)
12 V direct current supply between
terminals 1 and 2
Existed
No supply
Not existed
PBIB2059E
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