Back NISSAN TEANA 2003 Manual PDF

FUEL INJECTOR
EC-289
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FUEL INJECTORPFP:16600
Component DescriptionBBS005IG
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
CONSULT-II Reference Value in Data Monitor ModeBBS005IH
Specification data are reference values.
SEF375Z
MONITOR ITEM CONDITION SPECIFICATION
B/FUEL SCHDL See EC-95, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
INJ PULSE-B1

Engine: After warming up

Air conditioner switch: OFF

Shift lever: N

No loadIdle 2.0 - 3.0 msec
2,000 rpm 1.9 - 2.9 msec

INDEX FOR DTC
EC-347
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[VQ]INDEX FOR DTCPFP:00024
DTC No. IndexBBS004XA
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" .
DTC*1Items
(CONSULT-II screen terms)Reference page
CONSULT-II
ECM*
2
No DTC
Flashing*3NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.EC-378
U1000
1000*4CAN COMM CIRCUITEC-458
U1001
1001*4CAN COMM CIRCUITEC-458
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
P0011 0011 INT/V TIM CONT-B1EC-461
P0021 0021 INT/V TIM CONT-B2EC-461
P0102 0102 MAF SEN/CIRCUITEC-466
P0103 0103 MAF SEN/CIRCUITEC-466
P0117 0117 ECT SEN/CIRCEC-474
P0118 0118 ECT SEN/CIRCEC-474
P0122 0122 TP SEN 2/CIRCEC-479
P0123 0123 TP SEN 2/CIRCEC-479
P0132 0132 HO2S1 (B1)EC-486
P0134 0134 HO2S1 (B1)EC-496
P0152 0152 HO2S1 (B2)EC-486
P0154 0154 HO2S1 (B2)EC-496
P0222 0222 TP SEN 1/CIRCEC-505
P0223 0223 TP SEN 1/CIRCEC-505
P0327 0327 KNOCK SEN/CIRC-B1EC-512
P0328 0328 KNOCK SEN/CIRC-B1EC-512
P0335 0335 CKP SEN/CIRCUITEC-517
P0340 0340 CMP SEN/CIRC-B1EC-524
P0345 0345 CMP SEN/CIRC-B2EC-524
P0550 0550 PW ST P SEN/CIRCEC-533
P0605 0605 ECMEC-538
P1065 1065 ECM BACK UP/CIRCUITEC-541
P 1111 1111 I N T / V T I M V / C I R - B 1EC-545
P1121 1121 ETC ACTREC-552
P1122 1122 ETC FUNCTION/CIRCEC-555
P1124 1124 ETC MOT PWREC-562
P1126 1126 ETC MOT PWREC-562
P1128 1128 ETC MOTEC-568
P1136 1136 INT/V TIM V/CIR-B2EC-545
P1211 1211 TCS C/U FUNCTNEC-573
P1212 1212 TCS/CIRCEC-574

INDEX FOR DTC
EC-349
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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

ENGINE CONTROL SYSTEM
EC-359
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MIXTURE RATIO FEEDBACK CONTROL (CLOSED LOOP CONTROL)
The mixture ratio feedback system provides the best air-fuel mixture ratio for driveability and emission control.
The three way catalyst (manifold) can then better reduce CO, HC and NOx emissions. This system uses
heated oxygen sensor 1 in the exhaust manifold to monitor whether the engine operation is rich or lean. The
ECM adjusts the injection pulse width according to the sensor voltage signal. For more information about
heated oxygen sensor 1, refer to EC-486, "
DTC P0132, P0152 HO2S1" . This maintains the mixture ratio
within the range of stoichiometric (ideal air-fuel mixture).
This stage is referred to as the closed loop control condition.
Heated oxygen sensor 2 is located downstream of the three way catalyst (manifold). Even if the switching
characteristics of heated oxygen sensor 1 shift, the air-fuel ratio is controlled to stoichiometric by the signal
from heated oxygen sensor 2.
Open Loop Control
The open loop system condition refers to when the ECM detects any of the following conditions. Feedback
control stops in order to maintain stabilized fuel combustion.

Deceleration and acceleration

High-load, high-speed operation

Malfunction of heated oxygen sensor 1 or its circuit

Insufficient activation of heated oxygen sensor 1 at low engine coolant temperature

High engine coolant temperature

During warm-up

After shifting from N to D

When starting the engine
MIXTURE RATIO SELF-LEARNING CONTROL
The mixture ratio feedback control system monitors the mixture ratio signal transmitted from heated oxygen
sensor 1. This feedback signal is then sent to the ECM. The ECM controls the basic mixture ratio as close to
the theoretical mixture ratio as possible. However, the basic mixture ratio is not necessarily controlled as orig-
inally designed. Both manufacturing differences (i.e., mass air flow sensor hot wire) and characteristic
changes during operation (i.e., fuel injector clogging) directly affect mixture ratio.
Accordingly, the difference between the basic and theoretical mixture ratios is monitored in this system. This is
then computed in terms of “injection pulse duration” to automatically compensate for the difference between
the two ratios.
“Fuel trim” refers to the feedback compensation value compared against the basic injection duration. Fuel trim
includes short term fuel trim and long term fuel trim.
“Short term fuel trim” is the short-term fuel compensation used to maintain the mixture ratio at its theoretical
value. The signal from heated oxygen sensor 1 indicates whether the mixture ratio is RICH or LEAN compared
to the theoretical value. The signal then triggers a reduction in fuel volume if the mixture ratio is rich, and an
increase in fuel volume if it is lean.
“Long term fuel trim” is overall fuel compensation carried out long-term to compensate for continual deviation
of the short term fuel trim from the central value. Such deviation will occur due to individual engine differences,
wear over time and changes in the usage environment.
PBIB2938E

EC-374
[VQ]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

ECT SEN/CIRC P0118 0118 2×EC-474
TP SEN 2/CIRC P0122 0122 1×EC-479
TP SEN 2/CIRC P0123 0123 1×EC-479
HO2S1 (B1) P0132 0132 2×EC-486
HO2S1 (B1) P0134 0134 2×EC-496
HO2S1 (B2) P0152 0152 2×EC-486
HO2S1 (B2) P0154 0154 2×EC-496
TP SEN 1/CIRC P0222 0222 1×EC-505
TP SEN 1/CIRC P0223 0223 1×EC-505
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-512
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-512
CKP SEN/CIRCUIT P0335 0335 2×EC-517
CMP SEN/CIRC-B1 P0340 0340 2×EC-524
CMP SEN/CIRC-B2 P0345 0345 2×EC-524
PW ST P SEN/CIRC P0550 0550 2 —EC-533
ECM P0605 0605 1 or 2× or —EC-538
ECM BACK UP/CIRCUIT P1065 1065 2×EC-541
I N T / V T I M V / C I R - B 1 P 1111 1111 2×EC-545
ETC ACTR P1121 1121 1×EC-552
ETC FUNCTION/CIRC P1122 1122 1×EC-555
ETC MOT PWR P1124 1124 1×EC-562
ETC MOT PWR P1126 1126 1×EC-562
ETC MOT P1128 1128 1×EC-568
INT/V TIM V/CIR-B2 P1136 1136 2×EC-545
TCS C/U FUNCTN P1211 1211 2 —EC-573
TCS/CIRC P1212 1212 2 —EC-574
ENG OVER TEMP P1217 1217 1×EC-575
CTP LEARNING P1225 1225 2 —EC-586
CTP LEARNING P1226 1226 2 —EC-588
SENSOR POWER/CIRC P1229 1229 1×EC-590
ASCD SW P1564 1564 1 —EC-595
ASCD BRAKE SW P1572 1572 1 —EC-602
ASCD VHL SPD SEN P1574 1574 1 —EC-611
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —BL-139
CVT C/U FUNCT P1700 1700 1 —EC-613
P-N POS SW/CIRCUIT P1706 1706 2×EC-614
IN PULY SPEED P1715 1715 2 —EC-622
V/SP SEN (A/T OUT) P1720 1720 2 —EC-624
BRAKE SW/CIRCUIT P1805 1805 1×EC-626
APP SEN 1/CIRC P2122 2122 1×EC-631
APP SEN 1/CIRC P2123 2123 1×EC-631
APP SEN 2/CIRC P2127 2127 1×EC-638
APP SEN 2/CIRC P2128 2128 1×EC-638
Items
(CONSULT-II screen terms)DTC*1
Trip MI Reference page
CONSULT-II
ECM*2

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-379
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2. Make sure that monitoring sensor has changed by MI blinking as follows.
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
1. Set ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to EC-378, "How to Set Diagnostic
Test Mode II (Self-diagnostic Results)" .
2. Fully depress the accelerator pedal and keep it for more than 10 seconds.
The emission-related diagnostic information has been erased from the backup memory in the ECM.
3. Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.
DIAGNOSTIC TEST MODE I — BULB CHECK
In this mode, the MI on the instrument panel should stay ON. If it remains OFF, check the bulb. Refer to DI-35,
"WARNING LAMPS" or see EC-763 .
DIAGNOSTIC TEST MODE I — MALFUNCTION WARNING

These DTC numbers are clarified in Diagnostic Test Mode II (SELF-DIAGNOSTIC RESULTS)
DIAGNOSTIC TEST MODE II — SELF-DIAGNOSTIC RESULTS
In this mode, the DTC and 1st trip DTC are indicated by the number of blinks of the MI as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MI does not illuminate in diagnostic test mode
I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MI illumi-
nates in diagnostic test mode II (SELF-DIAGNOSTIC RESULTS), it is a DTC; if two or more codes are dis-
played, they may be either DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified
codes can be identified by using the CONSULT-II. A DTC will be used as an example for how to read a code.
PBIB0093E
MI Condition
ON When the malfunction is detected
OFF No malfunction
PBIA3905E

EC-380
[VQ]
ON BOARD DIAGNOSTIC (OBD) SYSTEM

A particular trouble code can be identified by the number of four-digit numeral flashes. The “zero” is indicated
by the number of ten flashes. The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds
consisting of an ON (0.6-second) - OFF (0.6-second) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-second ON and 0.3-second OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-second OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no mal-
function. (See EC-347, "
INDEX FOR DTC" )
How to Erase Diagnostic Test Mode II (Self-diagnostic Results)
The DTC can be erased from the back up memory in the ECM by depressing accelerator pedal. Refer to EC-
378, "HOW TO SWITCH DIAGNOSTIC TEST MODE" .

If the battery is disconnected, the DTC will be lost from the backup memory within 24 hours.

Be careful not to erase the stored memory before starting trouble diagnoses.
DIAGNOSTIC TEST MODE II — HEATED OXYGEN SENSOR 1 MONITOR
In this mode, the MI displays the condition of the fuel mixture (lean or rich) which is monitored by the heated
oxygen sensor 1.
*: Maintains conditions just before switching to open loop.
To check the heated oxygen sensor 1 function, start engine in the Diagnostic Test Mode II and warm it up until
engine coolant temperature indicator points to the middle of the gauge.
Next run engine at about 2,000 rpm for about 2 minutes under no load conditions. Then make sure that the MI
comes ON more than 5 times within 10 seconds with engine running at 2,000 rpm under no load.
MI Fuel mixture condition in the exhaust gas Air fuel ratio feedback control condition
ON Lean
Closed loop system
OFF Rich
*Remains ON or OFF Any condition Open loop system

EC-424
[VQ]
TROUBLE DIAGNOSIS

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)108 G/R ASCD brake switch[Ignition switch: ON]

Brake pedal: Slightly depressedApproximately 0V
[Ignition switch: ON]

Brake pedal: Fully releasedBATTERY VOLTAGE
(11 - 14V)
109 R Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
111 W / BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]

For a few seconds after turning ignition
switch OFF0 - 1.5V
[Ignition switch: OFF]

More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
113 B/R Fuel pump relay[Ignition switch: ON]

For 1 second after turning ignition switch
ON
[Engine is running]0 - 1.5V
[Ignition switch: ON]

More than 1 second after turning ignition
switch ONBATTERY VOLTAGE
(11 - 14V)
11 5
11 6B
BECM ground[Engine is running]

Idle speedBody ground
11 9
120R/G
R/GPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
121 W/LPower supply for ECM
(Back-up)[Ignition switch: OFF]BATTERY VOLTAGE
(11 - 14V) TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)

TROUBLE DIAGNOSIS
EC-425
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CONSULT-II Function (ENGINE)BBS004YF
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.

Diagnostic trouble codes

1st trip diagnostic trouble codes

Freeze frame data

1st trip freeze frame dataDiagnostic test mode Function
Work supportThis mode enables a technician to adjust some devices faster and more accurately by following the
indications on the CONSULT-II unit.
Self-diagnostic resultsSelf-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.*
Data monitor Input/Output data in the ECM can be read.
Data monitor (SPEC)Input/Output of the specification for Basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.
Active testDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
Function test This mode is used to inform customers when their vehicle condition requires periodic maintenance.
ECM part number ECM part number can be read.

TROUBLE DIAGNOSIS
EC-427
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INSPECTION PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
WORK SUPPORT MODE
Work Item
*: This function is not necessary in the usual service procedure.
SELF-DIAG RESULTS MODE
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to EC-373, "EMISSION-RELATED DIAGNOSTIC INFORMA-
TION ITEMS" .
Freeze Frame Data and 1st Trip Freeze Frame Data
*: The items are the same as those of 1st trip freeze frame data.WORK ITEM CONDITION USAGE
FUEL PRESSURE RELEASE

FUEL PUMP WILL STOP BY TOUCHING “START” DUR-
ING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS.When releasing fuel pressure
from fuel line
IDLE AIR VOL LEARN

THE IDLE AIR VOLUME THAT KEEPS THE ENGINE
WITHIN THE SPECIFIED RANGE IS MEMORIZED IN
ECM.When learning the idle air volume
SELF-LEARNING CONT

THE COEFFICIENT OF SELF-LEARNING CONTROL
MIXTURE RATIO RETURNS TO THE ORIGINAL COEF-
FICIENT.When clearing the coefficient of
self-learning control value
TARGET IDLE RPM ADJ*

IDLE CONDITION When setting target idle speed
TARGET IGN TIM ADJ*

IDLE CONDITION When adjusting target ignition tim-
ing
Freeze frame data
item*Description
DIAG TROUBLE
CODE
[PXXXX]

The engine control component part/control system has a trouble code, it is displayed as “PXXXX”. (Refer
to EC-347, "
INDEX FOR DTC" .)
FUEL SYS-B1

“Fuel injection system status” at the moment a malfunction is detected is displayed.

One mode in the following is displayed.
“Mode2”: Open loop due to detected system malfunction
“Mode3”: Open loop due to driving conditions (power enrichment, deceleration enleanment)
“Mode4”: Closed loop - using oxygen sensor(s) as feedback for fuel control
“Mode5”: Open loop - has not yet satisfied condition to go to closed loop FUEL SYS-B2
COOLANT TEMP
[°C] or [°F]

The engine coolant temperature at the moment a malfunction is detected is displayed.
L-FUEL TRM-B1 [%]

“Long-term fuel trim” at the moment a malfunction is detected is displayed.

The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule
than short-term fuel trim. L-FUEL TRM-B2 [%]
S-FUEL TRM-B1 [%]

“Short-term fuel trim” at the moment a malfunction is detected is displayed.

The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel
schedule. S-FUEL TRM-B2 [%]
ENGINE SPEED
[rpm]

The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED
[km/h] or [mph]

The vehicle speed at the moment a malfunction is detected is displayed.
B/FUEL SCHDL
[msec]

The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE
[°C] or [°F]

The intake air temperature at the moment a malfunction is detected is displayed.