Nissan Pathfinder (2009 year). Instruction — part 300
EC-414
< COMPONENT DIAGNOSIS >
[VQ40DE]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
Component Description
INFOID:0000000004297652
The refrigerant pressure sensor is installed at the condenser of the
air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
Diagnosis Procedure
INFOID:0000000004297653
1.
CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1.
Start engine and warm it up to normal operating temperature.
2.
Turn A/C switch and blower switch ON.
3.
Check voltage between ECM terminal 70 and ground with CON-
SULT-III or tester.
OK or NG
OK
>> INSPECTION END
NG
>> GO TO 2.
2.
CHECK GROUND CONNECTIONS
1.
Turn A/C switch and blower switch OFF.
2.
Turn ignition switch OFF.
3.
Loosen and retighten three ground screws on the body. Refer to
BBIA0564E
PBIB2657E
Voltage: 1.0 - 4.0V
PBIB1188E
BBIA0539E
2009 Pathfinder
REFRIGERANT PRESSURE SENSOR
EC-415
< COMPONENT DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace ground connections.
3.
CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect refrigerant pressure sensor harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between refrigerant pressure sensor terminal 3
and ground with CONSULT-III or tester.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E5, F14
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair harness or connectors.
5.
CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between refrigerant pressure sensor terminal 1 and ECM terminal 67.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E5, F14
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between ECM terminal 70 and refrigerant pressure sensor terminal 2.
Refer to Wiring Diagram.
BBIA0564E
Voltage: Approximately 5V
PBIB1872E
Continuity should exist.
2009 Pathfinder
EC-416
< COMPONENT DIAGNOSIS >
[VQ40DE]
REFRIGERANT PRESSURE SENSOR
2.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E5, F14
• Harness for open or short between ECM and refrigerant pressure sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK INTERMITTENT INCIDENT
GI-49, "Intermittent Incident"
OK or NG
OK
>> Replace refrigerant pressure sensor.
NG
>> Repair or replace.
Continuity should exist.
2009 Pathfinder
VIAS
EC-417
< COMPONENT DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
VIAS
Diagnosis Procedure
INFOID:0000000004297654
1.
CHECK OVERALL FUNCTION
With CONSULT-III
1.
Start engine and warm it up to normal operating temperature.
2.
Perform “VIAS SOL VALVE” in “ACTIVE TEST” mode with CONSULT-III.
3.
Turn VIAS control solenoid valve “ON” and “OFF”, and make
sure that power valve actuator rod moves.
Without CONSULT-III
1.
Start engine and warm it up to normal operating temperature.
2.
Rev engine up to between 2,200 and 3,300 rpm and make sure
that power valve actuator rod moves.
OK or NG
OK
>> INSPECTION END
NG (With CONSULT-III) >>GO TO 2.
NG (Without CONSULT-III) >>GO TO 3.
2.
CHECK VACUUM EXISTENCE
With CONSULT-III
1.
Stop engine and disconnect vacuum hose connected to power valve actuator.
2.
Start engine and let it idle.
3.
Perform “VIAS SOL VALVE” in “ACTIVE TEST” mode with CONSULT-III.
4.
Turn VIAS control solenoid valve “ON” and “OFF”, and check vacuum existence under the following condi-
tions.
OK or NG
OK
>> Repair or replace power valve actuator.
NG
>> GO TO 4.
3.
CHECK VACUUM EXISTENCE
Without CONSULT-III
1.
Stop engine and disconnect vacuum hose connected to power valve actuator.
2.
Disconnect VIAS control solenoid valve harness connector.
3.
Start engine and let it idle.
BBIA0570E
BBIA0570E
VIAS SOL VALVE
Vacuum
ON
Should exist.
OFF
Should not exist.
2009 Pathfinder
EC-418
< COMPONENT DIAGNOSIS >
[VQ40DE]
VIAS
4.
Apply 12V of direct current between VIAS control solenoid valve
terminals 1 and 2.
5.
Check vacuum existence under the following conditions.
OK or NG
OK
>> Repair or replace power valve actuator.
NG
>> GO TO 4.
4.
CHECK VACUUM HOSE
1.
Stop engine.
2.
Check hoses and tubes between intake manifold and power
valve actuator for cracks, clogging, improper connection or dis-
connection. Refer to
OK or NG
OK
>> GO TO 5.
NG
>> Repair hoses or tubes.
5.
CHECK VACUUM TANK
EC-419, "Component Inspection"
OK or NG
OK
>> GO TO 6.
NG
>> Replace vacuum tank.
6.
CHECK VIAS CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect VIAS control solenoid valve harness connector.
3.
Turn ignition switch ON.
4.
Check voltage between terminal 1 and ground with CONSULT-
III or tester.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 7.
Condition
Vacuum
12V direct current supply
Should exist.
No supply
Should not exist.
PBIB0845E
SEF109L
BBIA0569E
Voltage: Battery voltage
PBIB0173E
2009 Pathfinder
VIAS
EC-419
< COMPONENT DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• Harness for open or short between VIAS control solenoid valve and IPDM E/R
• Harness for open or short between VIAS control solenoid valve and ECM
>> Repair harness or connectors.
8.
CHECK VIAS 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 29 and VIAS 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
>> GO TO 9.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK VIAS CONTROL SOLENOID VALVE
EC-419, "Component Inspection"
OK or NG
OK
>> GO TO 10.
NG
>> Replace VIAS control solenoid valve.
10.
CHECK INTERMITTENT INCIDENT
GI-49, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000004297655
VIAS CONTROL SOLENOID VALVE
With CONSULT-III
1.
Reconnect harness connectors disconnected.
2.
Turn ignition switch ON.
3.
Perform “VIAS SOL VALVE” in “ACTIVE TEST” mode.
4.
Check air passage continuity and operation delay time under the
following conditions.
Operation takes less than 1 second.
Without CONSULT-III
Continuity should exist.
Condition
VIAS SOL VALVE
Air passage continuity
between (A) and (B)
Air passage continuity
between (A) and (C)
ON
Yes
No
OFF
No
Yes
JMBIA0180ZZ
2009 Pathfinder
EC-420
< COMPONENT DIAGNOSIS >
[VQ40DE]
VIAS
Check air passage continuity and operation delay time under the fol-
lowing conditions.
Operation takes less than 1 second.
VACUUM TANK
1.
Disconnect vacuum hose connected to vacuum tank.
2.
Connect a vacuum pump to the port (A) of vacuum tank.
3.
Apply vacuum and make sure that vacuum exists at the port (B).
Condition
Air passage continuity
between (A) and (B)
Air passage continuity
between (A) and (C)
12V direct current supply
between terminals 1 and 2
Yes
No
No supply
No
Yes
PBIB2532E
PBIB0846E
2009 Pathfinder
ECM
EC-421
< ECU DIAGNOSIS >
[VQ40DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
ECU DIAGNOSIS
ECM
CONSULT-III Reference Value in Data Monitor Mode
INFOID:0000000004297656
Remarks:
z
Specification data are reference values.
z
Specification data are output/input values which are detected or supplied by the ECM at the connector.
* Specification data may not be directly related to their components signals/values/operations.
i.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the specification data in spite of the
ignition timing not being adjusted to the specification data. This IGN TIMING monitors the data calculated by the ECM according to the signals
input from the camshaft position sensor and other ignition timing related sensors.
MONITOR ITEM
CONDITION
SPECIFICATION
ENG SPEED
• Run engine and compare CONSULT-III value with the tachometer indica-
tion.
Almost the same speed as the
tachometer indication.
MAS A/F SE-B1
See
B/FUEL SCHDL
See
A/F ALPHA-B1
A/F ALPHA-B2
See
COOLAN TEMP/S
• Engine: After warming up
More than 70
°
C (158
°
F)
A/F SEN1 (B1)
A/F SEN1 (B2)
• Engine: After warming up
Maintaining engine speed at 2,000 rpm
Fluctuates around 2.2 V
HO2S2 (B1)
HO2S2 (B2)
• Revving engine from idle to 3,000 rpm quickly after the following conditions
are met
- Engine: After warming up
- Keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load.
0 - 0.3 V
←→
Approx. 0.6 - 1.0
V
HO2S2 MNTR (B1)
HO2S2 MNTR (B2)
• Revving engine from idle to 3,000 rpm quickly after the following conditions
are met
- Engine: After warming up
- Keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load.
LEAN
←→
RICH
VHCL SPEED SE
• Turn drive wheels and compare CONSULT-III value with the speedometer
indication.
Almost the same speed as the
speedometer indication
BATTERY VOLT
• Ignition switch: ON (Engine stopped)
11 - 14 V
ACCEL SEN 1
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.65 - 0.87 V
Accelerator pedal: Fully depressed
More than 4.3 V
ACCEL SEN 2*
1
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.56 - 0.96 V
Accelerator pedal: Fully depressed
More than 4.0 V
TP SEN 1-B1
TP SEN 2-B1*
1
• Ignition switch: ON
(Engine stopped)
• Shift lever: D
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
EVAP SYS PRES
• Ignition switch: ON
Approx. 1.8 - 4.8 V
START SIGNAL
• Ignition switch: ON
→
START
→
ON
OFF
→
ON
→
OFF
CLSD THL POS
• Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
ON
Accelerator pedal: Slightly depressed
OFF
AIR COND SIG
• Engine: After warming up, idle the
engine
Air conditioner switch: OFF
OFF
Air conditioner switch: ON
(Compressor operates.)
ON
P/N POSI SW
• Ignition switch: ON
Shift lever: P or N
ON
Shift lever: Except above
OFF
PW/ST SIGNAL
• Engine: After warming up, idle the
engine
Steering wheel: Not being turned
OFF
Steering wheel: Being turned.
ON
2009 Pathfinder
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст