Condenser NISSAN TEANA 2008 User Guide

EC-5
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P2122, P2123 APP SENSOR ...........................304
Description ............................................................304
DTC Logic .............................................................304
Diagnosis Procedure .............................................304
Component Inspection ..........................................306
Special Repair Requirement .................................306
P2127, P2128 APP SENSOR ...........................307
Description ............................................................307
DTC Logic .............................................................307
Diagnosis Procedure .............................................307
Component Inspection ..........................................309
Special Repair Requirement .................................310
P2135 TP SENSOR ..........................................311
Description ............................................................311
DTC Logic .............................................................311
Diagnosis Procedure .............................................311
Component Inspection ..........................................313
Special Repair Requirement .................................313
P2138 APP SENSOR .......................................314
Description ............................................................314
DTC Logic .............................................................314
Diagnosis Procedure .............................................314
Component Inspection ..........................................316
Special Repair Requirement .................................317
P2A00, P2A03 A/F SENSOR 1 ........................318
Description ............................................................318
DTC Logic .............................................................318
Diagnosis Procedure .............................................319
ASCD BRAKE SWITCH ...................................321
Description ............................................................321
Component Function Check ..................................321
Diagnosis Procedure .............................................321
Component Inspection (ASCD Brake Switch) .......322
ASCD INDICATOR ...........................................323
Description ............................................................323
Component Function Check ..................................323
Diagnosis Procedure .............................................323
COOLING FAN .................................................324
Description ............................................................324
Component Function Check ..................................324
Diagnosis Procedure .............................................324
Component Inspection (Cooling Fan Motor) .........327
Component Inspection (Cooling Fan Relay) .........328
ELECTRICAL LOAD SIGNAL .........................329
Description ............................................................329
Component Function Check ..................................329
Diagnosis Procedure .............................................329
ELECTRONIC CONTROLLED ENGINE
MOUNT .............................................................
331
Description ............................................................331
Component Function Check ..................................331
Diagnosis Procedure .............................................331
Component Inspection ...........................................332
FUEL INJECTOR ............................................334
Description .............................................................334
Component Function Check ..................................334
Diagnosis Procedure .............................................334
Component Inspection ...........................................336
FUEL PUMP ....................................................337
Description .............................................................337
Component Function Check ..................................337
Diagnosis Procedure .............................................337
Component Inspection (Fuel Pump) ......................340
Component Inspection (Condenser) ......................340
IGNITION SIGNAL ..........................................341
Description .............................................................341
Component Function Check ..................................341
Diagnosis Procedure .............................................341
Component Inspection (Ignition Coil with Power
Transistor) .............................................................
344
Component Inspection (Condenser) ......................345
MALFUNCTION INDICATOR .........................346
Description .............................................................346
Component Function Check ..................................346
Diagnosis Procedure .............................................346
POSITIVE CRANKCASE VENTILATION .......347
Description .............................................................347
Component Inspection ...........................................347
REFRIGERANT PRESSURE SENSOR ..........348
Description .............................................................348
Component Function Check ..................................348
Diagnosis Procedure .............................................348
VARIABLE INDUCTION AIR SYSTEM ..........351
Description .............................................................351
Component Function Check (VQ35DE engine) .....351
Component Function Check (VQ25DE engine) .....353
Diagnosis Procedure (VQ35DE engine) ................353
Diagnosis Procedure (VQ25DE engine) ................355
ECU DIAGNOSIS .......................................357
ECM .................................................................357
Reference Value ....................................................357
Wiring Diagram—ENGINE CONTROL SYS-
TEM— ...................................................................
371
Fail safe .................................................................386
DTC Inspection Priority Chart .............................388
DTC Index .............................................................389
How to Set SRT Code ........................................392
Test Value and Test Limit ...................................394
SYMPTOM DIAGNOSIS ............................400
ENGINE CONTROL SYSTEM SYMPTOMS ...400
Symptom Table .....................................................400
NORMAL OPERATING CONDITION .............404

EC-252
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
P1217 ENGINE OVER TEMPERATURE
>> Repair or replace malfunctioning part.
4.CHECK RADIATOR CAP
Check radiator cap. Refer to CO-12, "
RADIATOR CAP : Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace radiator cap.
5.CHECK THERMOSTAT
Check thermostat. Refer to CO-24, "
Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace thermostat
6.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to EC-158, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace engine coolant temperature sensor.
7.CHECK MAIN 12 CAUSES
If the cause cannot be isolated, check the following.
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (56 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to CO-3, "
TroubleshootingChart". Engine Step Inspection item Equipment Standard Reference page
OFF 1  Blocked radiator
 Blocked condenser
 Blocked radiator grille
 Blocked bumper Visual No blocking —
2  Coolant mixture  Coolant testerMA-11, "
Fluids and Lubricants"
3  Coolant level  Visual Coolant up to MAX level in
reservoir tank and radiator
filler neckCO-8, "Inspection"
4  Radiator cap  Pressure testerCO-12, "RADIATOR CAP : Inspection"
ON*25  Coolant leaks  Visual No leaksCO-8, "Inspection"
ON*26  Thermostat  Touch the upper and
lower radiator hosesBoth hoses should be hotCO-24, "Inspection"
ON*17  Cooling fan  CONSULT-III OperatingEC-324, "Component
Function Check"
OFF 8  Combustion gas leak  Color checker chemical
tester 4 Gas analyzerNegative —
ON*
39  Coolant temperature
gauge Visual Gauge less than 3/4 when
driving—
 Coolant overflow to res-
ervoir tank Visual No overflow during driving
and idlingCO-8, "
Inspection"
OFF*410  Coolant return from res-
ervoir tank to radiator Visual Should be initial level in
reservoir tankCO-8, "Inspection"
OFF 11  Cylinder head  Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)EM-104, "Inspection"
12  Cylinder block and pis-
tons Visual No scuffing on cylinder
walls or pistonEM-119, "Inspection"

EC-338
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
FUEL PUMP
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
Check the voltage between IPDM E/R harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 14.
3.DETECT MALFUNCTIONING PART
Check the following.
 IPDM E/R harness connector F12
 Harness for open or short between IPDM E/R and ECM
>> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK CONDENSER POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Reconnect all harness connectors disconnected.
3. Disconnect condenser harness connector.
4. Turn ignition switch ON.
5. Check the voltage between condenser harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 5.
5.CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse (No. 41).
3. Check 15A fuse.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace 15A fuse.
6.CHECK CONDENSER POWER SUPPLY CIRCUIT-II
1. Disconnect IPDM E/R harness connector.
2. Check the continuity between IPDM E/R harness connector and condenser harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 14.
NO >> GO TO 7.
7.DETECT MALFUNCTIONING PART
IPDM E/R
Ground Voltage
Connector Terminal
F12 77 Ground Battery voltage
Condenser
Ground Voltage
Connector Terminal
B81 1 GroundBattery voltage should exist for 1 second
after ignition switch is turned ON.
IPDM E/R Condenser
Continuity
Connector Terminal Connector Terminal
E1013B81 1 Existed

FUEL PUMP
EC-339
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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Check the following.
 Harness connectors E104, B4
 IPDM E/R connector E10
 Harness for open or short between IPDM E/R and condenser
>> Repair open circuit or short to power in harness or connectors.
8.CHECK CONDENSER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check the continuity between condenser harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit or short to power in harness or connectors.
9.CHECK CONDENSER
Refer to EC-340, "
Component Inspection (Condenser)".
Is the inspection result normal?
YES >> GO TO 10.
NO >> Replace condenser.
10.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check harness continuity between IPDM E/R harness connector and “fuel level sensor unit and fuel
pump” harness connector.
Is the inspection result normal?
YES >> GO TO 12.
NO >> GO TO 11.
11 .DETECT MALFUNCTIONING PART
Check the following.
 Harness connectors B4, E104
 Harness for open or short between “fuel level sensor unit and fuel pump” and IPDM E/R
>> Repair open circuit or short to power in harness or connectors.
12.CHECK FUEL PUMP GROUND CIRCUIT
1. Disconnect “fuel level sensor unit and fuel pump” harness connector.
2. Check the continuity between “fuel level sensor unit and fuel pump” harness connector and ground.
Is the inspection result normal?
Condenser
Ground Continuity
Connector Terminal
B81 2 Ground Existed
IPDM E/RFuel level sensor unit and fuel
pump
Continuity
Connector Terminal Connector Terminal
E1013B40 1 Existed
Fuel level sensor unit and fuel
pump
Ground Continuity
Connector Terminal
B40 3 Ground Existed

EC-340
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
FUEL PUMP
YES >> GO TO 13.
NO >> Repair open circuit or short to power in harness or connectors.
13.CHECK FUEL PUMP
Refer to EC-340, "
Component Inspection (Fuel Pump)".
Is the inspection result normal?
YES >> GO TO 14.
NO >> Replace fuel pump.
14.CHECK INTERMITTENT INCIDENT
Refer to GI-35, "
Intermittent Incident".
Is the inspection result normal?
YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connectors.
Component Inspection (Fuel Pump)INFOID:0000000003856846
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect “fuel level sensor unit and fuel pump” harness connector.
3. Check resistance between “fuel level sensor unit and fuel pump” terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace “fuel level sensor unit and fuel pump”
Component Inspection (Condenser)INFOID:0000000003856847
1.CHECK CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace condenser.
Terminals Resistance
1 and 3 0.2 - 5.0 Ω [at 25°C (77°F)]
Terminals Resistance
1 and 2 Above 1 MΩ [at 25°C (77°F)]

EC-342
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
IGNITION SIGNAL
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to EC-132, "
Diagnosis Procedure".
2.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Turn ignition switch ON.
4. Check the voltage between condenser harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check the continuity between IPDM E/R harness connector and condenser harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> Refer to EC-132, "Diagnosis Procedure".
NO >> Repair open circuit, short to ground or short to power in harness or connectors.
4.CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between condenser harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to power in harness or connectors.
5.CHECK CONDENSER
Refer to EC-345, "
Component Inspection (Condenser)"
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace condenser.
6.CHECK IGNITION COIL POWER SUPPLY CIRCUIT-V
1. Reconnect all harness connectors disconnected.
2. Disconnect ignition coil harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ignition coil harness connector and ground.
Condenser
Ground Voltage
Connector Terminal
F13 1 Ground Battery voltage
IPDM E/R Condenser
Continuity
Connector Terminal Connector Terminal
F1249F13 1Existed
Condenser
Ground Continuity
Connector Terminal
F13 2 Ground Existed

IGNITION SIGNAL
EC-345
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
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YES >> INSPECTION END
NO >> Replace malfunctioning ignition coil with power transistor.
Component Inspection (Condenser)INFOID:0000000003856852
1.CHECK CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals as per the following.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace condenser.
Terminals Resistance
1 and 2 Above 1 MΩ [at 25C° (77C°)]

EC-348
< COMPONENT DIAGNOSIS >[VQ25DE, VQ35DE]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
DescriptionINFOID:0000000003856862
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.
Component Function CheckINFOID:0000000003856863
1.CHECK REFRIGERANT PRESSURE SENSOR FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower fan switch ON.
3. Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-348, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003856864
1.CHECK GROUND CONNECTION
1. Turn A/C switch and blower fan switch OFF.
2. Stop engine.
3. Turn ignition switch OFF.
4. Check ground connection E38. Refer to Ground Inspection in GI-37, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Disconnect refrigerant pressure sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between refrigerant pressure sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
PBIB2657E
ECM
Voltage (V)
Connector+–
Te r m i n a l Te r m i n a l
F839
(Refrigerant pressure sensor signal)40
(Sensor ground)1.0 - 4.0
Refrigerant pressure sensor
Ground Voltage (V)
Connector Terminal
E300 1 Ground Approx. 5

PRECAUTIONS
EC-407
< PRECAUTION >[VQ25DE, VQ35DE]
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When connecting or disconnecting pin connectors into or
from ECM, never damage pin terminals (bends or break).
Check that there are not any bends or breaks on ECM pin ter-
minal, when connecting pin connectors.
Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge) volt-
age to develop in coil and condenser, thus resulting in dam-
age to ICs.
Keep engine control system harness at least 10 cm (4 in) away
from adjacent harness, to prevent engine control system mal-
functions due to receiving external noise, degraded operation
of ICs, etc.
Keep engine control system parts and harness dry.
Before replacing ECM, perform ECM Terminals and Reference
Value inspection and check ECM functions properly. Refer to
EC-357, "
Reference Value".
Handle mass air flow sensor carefully to avoid damage.
Never clean mass air flow sensor with any type of detergent.
Never disassemble electric throttle control actuator.
Even a slight leak in the air intake system can cause serious
incidents.
Never shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
After performing each TROUBLE DIAGNOSIS, perform DTC
Confirmation Procedure or Component Function Check.
The DTC should not be displayed in the DTC Confirmation
Procedure if the repair is completed. The Component Func-
tion Check should be a good result if the repair is completed.
PBIB0090E
MEF040D
SAT652J

HA-2
LOW-PRESSURE PIPE .....................................42
Exploded View ........................................................42
Removal and Installation ........................................42
HIGH-PRESSURE PIPE ....................................44
Exploded View ........................................................44
Removal and Installation ........................................44
CONDENSER ....................................................46
Exploded View ........................................................46
Removal and Installation ........................................46
CONDENSER PIPE ASSEMBLY ......................48
Exploded View ........................................................48
Removal and Installation ........................................48
LIQUID TANK ....................................................50
Exploded View ........................................................50
Removal and Installation ........................................50
REFRIGERANT PRESSURE SENSOR ............51
Exploded View ........................................................51
Removal and Installation ........................................51
EVAPORATOR ..................................................52
Exploded View ........................................................52
Removal and Installation .........................................53
EVAPORATOR PIPE ASSEMBLY ....................54
Exploded View ........................................................54
Removal and Installation .........................................55
EXPANSION VALVE .........................................57
Exploded View ........................................................57
Removal and Installation .........................................58
SERVICE DATA AND SPECIFICATIONS
(SDS) ..........................................................
59
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
59
Compressor ............................................................59
Lubricant .................................................................59
Refrigerant ..............................................................59
Engine Idling Speed ................................................59
Belt Tension ............................................................59