Nissan Maxima. Manual — part 508
EC-516
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
REFRIGERANT PRESSURE SENSOR
3. Check the voltage between refrigerant pressure sensor harness
connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E3, F1
• Junction block connectors E44, E45
• IPDM E/R harness connectors E18, E201
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.
CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E3, F1
• IPDM E/R harness connectors E18, E201
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
6.
CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Refrigerant pressure sensor
Ground
Voltage (V)
Connector
Terminal
E219
1
Ground
Approx. 5
JMBIA1619ZZ
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E219
3
F13
40
Existed
Refrigerant pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
E219
2
F13
39
Existed
REFRIGERANT PRESSURE SENSOR
EC-517
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Check the following.
• Harness connectors E3, F1
• IPDM E/R harness connectors E18, E201
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit, short to ground or short to power in harness or connectors.
8.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace refrigerant pressure sensor. Refer to
HAC-105, "Removal and Installation"
HAC-208, "Removal and Installation"
(with monochrome display).
NO
>> Repair or replace malfunctioning part.
EC-518
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
VARIABLE INDUCTION AIR SYSTEM
VARIABLE INDUCTION AIR SYSTEM
Description
INFOID:0000000010095238
Power Valves 1 and 2
The power valves 1 and 2 are installed in intake manifold collector and used to control the suction passage of
the variable induction air control system. They are set in the fully closed or fully opened position by the power
valve actuators 1 and 2 operated by the vacuum stored in the vacuum tank. The vacuum to power valve actu-
ators is controlled by the VIAS control solenoid valves 1 and 2.
Component Function Check
INFOID:0000000010095239
1.
CHECK OVERALL FUNCTION-I
With CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. Perform “VIAS S/V-1” in “ACTIVE TEST” mode with CONSULT.
3. Turn VIAS control solenoid valve 1 “ON” and “OFF”, and check that power valve actuator 1 rod moves.
Without CONSULT
1. Start engine and warm it up to the normal operating temperature.
2. When revving engine up to 5,000 rpm quickly.
3. Check that power valve actuator 1 rod moves under the following conditions.
Is the inspection result normal?
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2 rod
4.
Power valve actuator 2
: Vehicle front
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2 rod
4.
Power valve actuator 2
: Vehicle front
Condition
Operation
Idle
Existed
When revving engine up to 5,000 rpm quickly
Not existed
ALBIA0613ZZ
ALBIA0613ZZ
VARIABLE INDUCTION AIR SYSTEM
EC-519
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> GO TO 2.
NO
>>
.
2.
CHECK OVERALL FUNCTION-II
With CONSULT
1. Perform “VIAS S/V-2” in “ACTIVE TEST” mode with CONSULT.
2. Turn VIAS control solenoid valve 2 “ON” and “OFF”, and check that power valve actuator 2 rod moves.
Without CONSULT
1. When revving engine up to 5,000 rpm quickly.
2. Check that power valve actuator 2 rod moves under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>>
.
Diagnosis Procedure
INFOID:0000000010095240
1.
INSPECTION START
Confirm the malfunctioning system (power valve 1 or power valve 2). Refer to
.
Which system is related to the incident?
Power valve 1>>GO TO 2.
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2 rod
4.
Power valve actuator 2
: Vehicle front
1.
Power valve actuator 1
2.
Power valve actuator 1 rod
3.
Power valve actuator 2 rod
4.
Power valve actuator 2
: Vehicle front
Condition
Operation
Idle
Existed
When revving engine up to 5,000 rpm quickly
Not existed
ALBIA0613ZZ
ALBIA0613ZZ
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