sensor NISSAN TEANA 2003 Service Manual

REFRIGERANT PRESSURE SENSOR
EC-343
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6. CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between refrigerant pressure sensor terminal 2 and ECM terminal 69.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E39, F41

Harness for open or short between refrigerant pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-105, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace refrigerant pressure sensor.
NG >> Repair or replace.
Removal and InstallationBBS005JT
REFRIGERANT PRESSURE SENSOR
Refer to ATC-144, "Removal and Installation of Refrigerant Pressure Sensor" . Continuity should exist.

EC-346
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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureBBS005JV
Idle Speed and Ignition TimingBBS005JW
*: Under the following conditions:

Air conditioner switch: OFF

Electric load: OFF (Lights, heater fan & rear window defogger)

Steering wheel: Kept in straight-ahead position
Mass Air Flow SensorBBS005JX
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorBBS005JY
Engine Coolant Temperature SensorBBS005JZ
Crankshaft Position Sensor (POS)BBS005K2
Refer to EC-174, "Component Inspection" .
Camshaft Position Sensor (PHASE)BBS005K3
Refer to EC-182, "Component Inspection" .
Heated Oxygen Sensor 1 HeaterBBS005K0
Heated Oxygen sensor 2 HeaterBBS005K1
Throttle Control MotorBBS005K4
Fuel InjectorBBS005K5
Fuel PumpBBS005K6
Fuel pressure at idle
Approximately 350 kPa (3.5bar, 3.57kg/cm2 , 51psi)
Target idle speed No load* (in N or P position) 700±50 rpm
Air conditioner: ON In N or P position 700 rpm or more
Ignition timing In N or P position 15±5° BTDC
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle0.7 - 1.0V*
Temperature °C (°F) Resistance kΩ
25 (77)1.800 - 2.200
80 (176)0.283 - 0.359
Temperature °C (°F) Resistance kΩ
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Resistance [at 25°C (77°F)] 3.3 - 4.0Ω
Resistance [at 25°C (77°F)] 5.0 - 7.0Ω
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)] 11.1 - 14.5Ω
Resistance [at 25°C (77°F)] 0.2 - 5.0Ω

EC-348
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INDEX FOR DTC

*1: 1st trip DTC No. is the same as DTC No.
*2: In Diagnostic Test Mode II (Self-diagnostic results).
*3: When engine is running.
*4: The troubleshooting for this DTC needs CONSULT-II.P1217 1217 ENG OVER TEMPEC-575
P1225 1225 CTP LEARNINGEC-586
P1226 1226 CTP LEARNINGEC-588
P1229 1229 SENSOR POWER/CIRCEC-590
P1564 1564 ASCD SWEC-595
P1572 1572 ASCD BRAKE SWEC-602
P1574 1574 ASCD VHL SPD SENEC-611
P1610 - P1615 1610 - 1615 NATS MALFUNCTIONBL-139
P1700 1700 CVT C/U FUNCTEC-613
P1706 1706 P-N POS SW/CIRCUITEC-614
P1715 1715 IN PULY SPEEDEC-622
1720 1720 V/SP SEN (A/T OUT)EC-624
P1805 1805 BRAKE SW/CIRCUITEC-626
P2122 2122 APP SEN 1/CIRCEC-631
P2123 2123 APP SEN 1/CIRCEC-631
P2127 2127 APP SEN 2/CIRCEC-638
P2128 2128 APP SEN 2/CIRCEC-638
P2135 2135 TP SENSOREC-645
P2138 2138 APP SENSOREC-652
DTC*1Items
(CONSULT-II screen terms)Reference page
CONSULT-II
ECM*
2

INDEX FOR DTC
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Alphabetical IndexBBS004XB
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-458, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
(CONSULT-II screen terms)DTC*1
Reference page
CONSULT-II
ECM*2
APP SEN 1/CIRC P2122 2122EC-631
APP SEN 1/CIRC P2123 2123EC-631
APP SEN 2/CIRC P2127 2127EC-638
APP SEN 2/CIRC P2128 2128EC-638
APP SENSOR P2138 2138EC-652
ASCD BRAKE SW P1572 1572EC-602
ASCD SW P1564 1564EC-595
ASCD VHL SPD SEN P1574 1574EC-611
BRAKE SW/CIRCUIT P1805 1805EC-626
CAN COMM CIRCUIT U1000
1000*4EC-458
CAN COMM CIRCUIT U1001
1001*4EC-458
CKP SEN/CIRCUIT P0335 0335EC-517
CMP SEN/CIRC-B1 P0340 0340EC-524
CMP SEN/CIRC-B2 P0345 0345EC-524
CTP LEARNING P1225 1225EC-586
CTP LEARNING P1226 1226EC-588
CVT C/U FUNCT P1700 1700EC-613
ECM P0605 0605EC-538
ECM BACK UP/CIRCUIT P1065 1065EC-541
ECT SEN/CIRC P0117 0117EC-474
ECT SEN/CIRC P0118 0118EC-474
ENG OVER TEMP P1217 1217EC-575
ETC ACTR P1121 1121EC-552
ETC FUNCTION/CIRC P1122 1122EC-555
ETC MOT P1128 1128EC-568
ETC MOT PWR P1124 1124EC-562
ETC MOT PWR P1126 1126EC-562
HO2S1 (B1) P0132 0132EC-486
HO2S1 (B1) P0134 0134EC-496
HO2S1 (B2) P0152 0152EC-486
HO2S1 (B2) P0154 0154EC-496
IN PULY SPEED P1715 1715EC-622
INT/V TIM CONT-B1 P0011 0011EC-461
INT/V TIM CONT-B2 P0021 0021EC-461
I N T / V T I M V / C I R - B 1 P 1111 1111EC-545
INT/V TIM V/CIR-B2 P1136 1136EC-545
KNOCK SEN/CIRC-B1 P0327 0327EC-512
KNOCK SEN/CIRC-B1 P0328 0328EC-512
MAF SEN/CIRCUIT P0102 0102EC-466

EC-350
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INDEX FOR DTC

*1: 1st trip DTC No. is the same as DTC No.
*2: In Diagnostic Test Mode II (Self-diagnostic results).
*3: When engine is running.
*4: The troubleshooting for this DTC needs CONSULT-II.MAF SEN/CIRCUIT P0103 0103EC-466
NATS MALFUNCTION P1610 - P1615 1610 - 1615BL-139
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*3EC-378
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000 —
P-N POS SW/CIRCUIT P1706 1706EC-614
PW ST P SEN/CIRC P0550 0550EC-533
SENSOR POWER/CIRC P1229 1229EC-590
TCS C/U FUNCTN P1211 1211EC-573
TCS/CIRC P1212 1212EC-574
TP SEN 1/CIRC P0222 0222EC-505
TP SEN 1/CIRC P0223 0223EC-505
TP SEN 2/CIRC P0122 0122EC-479
TP SEN 2/CIRC P0123 0123EC-479
TP SENSOR P2135 2135EC-645
V/SP SEN (A/T OUT) P1720 1720EC-624
Items
(CONSULT-II screen terms)DTC*1
Reference page
CONSULT-II
ECM*2

PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BBS004XC
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
On Board Diagnostic (OBD) System of EngineBBS004XD
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-71, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM
before returning the vehicle to the customer.
PrecautionBBS004XE

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.
SEF289H

EC-352
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PRECAUTIONS


Do not disassemble ECM.

If a battery cable is disconnected, the memory will return to
the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.

If the battery is disconnected, the following emission-
related diagnostic information will be lost within 24 hours.
–Diagnostic trouble codes
–1st trip diagnostic trouble codes
–Freeze frame data
–1st trip freeze frame data

When connecting ECM harness connector, fasten it
securely with levers as far as they will go as shown in the
figure.

When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.

Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.

Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions 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 Refer-
ence Value” inspection and make sure ECM functions prop-
erly. Refer to EC-415, "
ECM Terminals and Reference Value"
.

Handle mass air flow sensor carefully to avoid damage.

Do not disassemble mass air flow sensor.

Do not clean mass air flow sensor with any type of deter-
gent.

Do not disassemble electric throttle control actuator.

Even a slight leak in the air intake system can cause seri-
ous incidents.

Do not shock or jar the camshaft position sensor (PHASE), crankshaft position sensor (POS).
PBIB1164E
PBIB2466E
PBIB0090E
MEF040D

PREPARATION
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PREPARATIONPFP:00002
Special Service ToolsBBS004XG
Tool number
Tool nameDescription
KV10117600
Fuel pressure check
adapterChecking fuel pressure with pressure gauge
KV10117100
Heated oxygen
sensor wrenchLoosening or tightening heated oxygen sensors
with 22 mm (0.87 in) hexagon nut
KV10114400
Heated oxygen
sensor wrenchLoosening or tightening heated oxygen sensors
a: 22 mm (0.87 in)
KV109E0010
Break-out boxMeasuring the ECM signals with a circuit tester
KV109E0080
Y-cable adapterMeasuring the ECM signals with a circuit tester
S-NT777
S-NT379
S-NT636
S-NT825
S-NT826

EC-356
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PREPARATION

Commercial Service ToolsBBS004XH
Tool name Description
Fuel filler cap adapter Checking fuel tank vacuum relief valve opening
pressure
Socket wrench Removing and installing engine coolant
temperature sensor
Oxygen sensor thread
cleanerReconditioning the exhaust system threads
before installing a new oxygen sensor. Use with
anti-seize lubricant shown below.
a: 18 mm diameter with pitch 1.5 mm for
Zirconia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for
Titania Oxygen Sensor
Anti-seize lubricant
i.e.: (Permatex
TM
133AR or equivalent
meeting MIL
specification MIL-A-
907)Lubricating oxygen sensor thread cleaning tool
when reconditioning exhaust system threads.
S-NT653
S-NT705
AEM488
S-NT779

EC-358
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ENGINE CONTROL SYSTEM

Multiport Fuel Injection (MFI) SystemBBS004XJ
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system. This is used only for the on board diagnosis.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the crankshaft position sensor and the mass air
flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.


During warm-up

When starting the engine

During acceleration

Hot-engine operation

When selector lever is changed from N to D

High-load, high-speed operation


During deceleration

During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS)
Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Heated oxygen sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Knock sensor Engine knocking condition
Battery
Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Air conditioner switch
Air conditioner operation*
2
Wheel sensor
Vehicle speed*2