P1304 NISSAN X-TRAIL 2003 Electronic Repair Manual

EC-10
DTC P0500 VEHICLESPEED SENSOR (VSS) .....744
Description ............................................................744
ECM Terminals and Reference Value ...................744
On Board Diagnosis Logic ....................................744
Overall Function Check ........................................744
Wiring Diagram .....................................................745
Diagnostic Procedure ...........................................747
DTC P1107 ABSOLUTE PRESSURE SENSOR ....749
Description ............................................................749
On Board Diagnosis Logic ....................................749
DTC Confirmation Procedure ...............................749
Diagnostic Procedure ...........................................749
DTC P1180 FUEL TEMPERATURE SENSOR .......751
Description ............................................................751
CONSULT-II Reference Value in Data Monitor Mode
.751
ECM Terminals and Reference Value ...................751
On Board Diagnosis Logic ....................................751
DTC Confirmation Procedure ...............................751
Wiring Diagram .....................................................752
Diagnostic Procedure ...........................................753
Removal and Installation ......................................753
DTC P1216 EDU .....................................................754
Description ............................................................754
ECM Terminals and Reference Value ...................754
On Board Diagnosis Logic ....................................755
DTC Confirmation Procedure ...............................755
Wiring Diagram .....................................................756
Diagnostic Procedure ...........................................758
Removal and Installation ......................................760
DTC P1217 OVERHEAT (COOLING SYSTEM) .....761
Description ............................................................761
CONSULT-II Reference Value in Data Monitor Mode
.761
ECM Terminals and Reference Value ...................761
On Board Diagnosis Logic ....................................761
Overall Function Check ........................................762
Wiring Diagram .....................................................763
Diagnostic Procedure ...........................................764
Main 12 Causes of Overheating ...........................770
Component Inspection ..........................................771
DTC P1233 - P1234 SUCTION CONTROL VALVE. 772
Description ............................................................772
CONSULT-II Reference Value in Data Monitor Mode
.772
ECM Terminals and Reference Value ...................772
On Board Diagnosis Logic ....................................773
DTC Confirmation Procedure ...............................773
Wiring Diagram .....................................................774
Diagnostic Procedure ...........................................775
Component Inspection ..........................................776
Removal and Installation ......................................776
DTC P1301 - P1304 FUEL INJECTOR ADJUST-
MENT RESISTOR ...................................................777
Description ............................................................777
ECM Terminals and Reference Value ...................777
On Board Diagnosis Logic ....................................777
DTC Confirmation Procedure ...............................777Wiring Diagram ..................................................... 778
Diagnostic Procedure ............................................ 779
Component Inspection .......................................... 780
Removal and Installation ....................................... 780
DTC P1305 FUEL LEAK ......................................... 781
On Board Diagnosis Logic .................................... 781
DTC Confirmation Procedure ................................ 781
Diagnostic Procedure ............................................ 781
Removal and Installation ....................................... 781
DTC P1510 ACCELERATOR PEDAL RELEASED
POSITION SWITCH ................................................. 783
Description ............................................................ 783
CONSULT-II Reference Value in Data Monitor Mode
. 783
ECM Terminals and Reference Value ................... 783
On Board Diagnosis Logic .................................... 784
DTC Confirmation Procedure ................................ 784
Wiring Diagram ..................................................... 785
Diagnostic Procedure ............................................ 786
Component Inspection .......................................... 787
Removal and Installation ....................................... 787
DTC P1606 ECM ..................................................... 788
Description ............................................................ 788
On Board Diagnosis Logic .................................... 788
DTC Confirmation Procedure ................................ 788
Diagnostic Procedure ............................................ 788
DTC P1621 ECM RELAY ........................................ 790
ECM Terminals and Reference valve .................... 790
On Board Diagnosis Logic .................................... 790
DTC Confirmation Procedure ................................ 790
Wiring Diagram ..................................................... 791
Diagnostic Procedure ............................................ 792
Component Inspection .......................................... 793
DTC P1660 BATTERY VOLTAGE ........................... 794
On Board Diagnosis Logic .................................... 794
DTC Confirmation Procedure ................................ 794
Diagnostic Procedure ............................................ 794
GLOW CONTROL SYSTEM ................................... 796
Description ............................................................ 796
ECM Terminals and Reference Value ................... 796
Wiring Diagram ..................................................... 797
Diagnostic Procedure ............................................ 798
Component Inspection .......................................... 802
Removal and Installation ....................................... 802
EGR VOLUME CONTROL SYSTEM ...................... 803
Description ............................................................ 803
CONSULT-II Reference Value in Data Monitor Mode
. 803
ECM Terminals and Reference Value ................... 804
Wiring Diagram ..................................................... 805
Diagnostic Procedure ............................................ 806
Component Inspection .......................................... 808
Removal and Installation ....................................... 809
BRAKE SWITCH ..................................................... 810
Description ............................................................ 810
ECM Terminals and Reference Value ................... 810
Wiring Diagram .....................................................811

EC-654
[YD]
INDEX FOR DTC
[YD]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS00368
X: Applicable —: Not applicable
DTC No. IndexEBS0036C
X: Applicable —: Not applicable Items
(CONSULT-II screen terms)DTC MI illumination Reference page
ACCEL POS SENSOR P0120´EC-715
ACCEL POS SW (F/C) P1510´EC-783
BATTERY VOLTAGE P1660´EC-794
CAM POS SEN/CIR P0340´EC-739
COOLANT TEMP SEN P0115´EC-711
CR PRES SEN P0190´EC-723
CRANK POS SEN (TDC) P0335´EC-734
CYL1 INJECTOR P0201´EC-727
CYL2 INJECTOR P0202´EC-727
CYL3 INJECTOR P0203´EC-727
CYL4 INJECTOR P0204´EC-727
ECM 1 P1606´EC-788
ECM 10 P1107´EC-749
ECM 15 P1621 —EC-790
FUEL LEAK FNCTN P1305´EC-781
INJ DRIVE UNIT P1216´EC-754
INJ1 CORREC R P1301 —EC-777
INJ2 CORREC R P1302 —EC-777
INJ3 CORREC R P1303 —EC-777
INJ4 CORREC R P1304 —EC-777
MAS AIR FLOW SEN P0100´EC-706
NATS MALFUNCTION P1610 - P1617 —BL-70
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.P0000——
OVER HEAT P1217´EC-761
P9·FUEL TEMP SEN P1180´EC-751
SUCTION CONT/V1 P1233´EC-772
SUCTION CONT/V2 P1234´EC-772
VEHICLE SPEED SEN P0500´EC-744
DTCItems
(CONSULT-II screen item)MI illumination Reference page
P0000NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.——
P0100 MASS AIR FLOW SEN´EC-706
P0115 COOLANT TEMP SEN´EC-711
P0120 ACCEL POS SENSOR´EC-715
P0190 CR PRES SEN´EC-723
P0201 CYL1 INJECTOR´EC-727
P0202 CYL2 INJECTOR´EC-727

INDEX FOR DTC
EC-655
[YD]
C
D
E
F
G
H
I
J
K
L
MA
EC
P0203 CYL3 INJECTOR´EC-727
P0204 CYL4 INJECTOR´EC-727
P0335 CRANK POS SEN (TDC)´EC-734
P0340 CAM POS SEN/CIR´EC-739
P0500 VEHICLE SPEED SEN´EC-744
P1107 ECM 10´EC-749
P1180 P9 ·FUEL TEMP SEN´EC-751
P1216 INJ DRIVE UNIT´EC-754
P1217 OVER HEAT´EC-761
P1233 SUCTION CONT/V1´EC-772
P1234 SUCTION CONT/V2´EC-772
P1301 INJ1 CORREC R —EC-777
P1302 INJ2 CORREC R —EC-777
P1303 INJ3 CORREC R —EC-777
P1304 INJ4 CORREC R —EC-777
P1305 FUEL LEAK FNCTN´EC-781
P1510 ACCEL POS SW (F/C)´EC-783
P1606 ECM 1´EC-788
P1610 - P1617 NATS MALFUNTION —BL-70
P1621 ECM 15 —EC-790
P1660 BATTERY VOLTAGE´EC-794
DTCItems
(CONSULT-II screen item)MI illumination Reference page

DTC P1301 - P1304 FUEL INJECTOR ADJUSTMENT RESISTOR
EC-777
[YD]
C
D
E
F
G
H
I
J
K
L
MA
EC
DTC P1301 - P1304 FUEL INJECTOR ADJUSTMENT RESISTORPFP:16600
DescriptionEBS008XN
The fuel injector adjustment resistor is built into the fuel injector. The resistance is constant and individual.
ECM uses the individual resistance to determine the fuel injection pulse.
ECM Terminals and Reference ValueEBS008XP
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
On Board Diagnosis LogicEBS008XQ
DTC Confirmation ProcedureEBS008XR
WITH CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and run it for at least 2 seconds at idle speed.
(If engine does not run, turn ignition switch to “START” for at
least 2 seconds.)
4. If DTC is detected, go toEC-779, "
Diagnostic Procedure".
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
A25 G/W Fuel injector's ground[Engine is running]
lWarm-up condition
lIdle speedApproximately 0V
B9 G/BFuel injector adjustment
resistor No.2
[Ignition switch "ON"]0.7 - 2.3V (0.2 - 4.8V)
(There is an individual differ-
ence in fuel injector adjust-
ment resistor.) B10 Y/BFuel injector adjustment
resistor No.4
B11 R/BFuel injector adjustment
resistor No.3
B12 W/BFuel injector adjustment
resistor No.1
DTC Malfunction is detected when .... Check Items (Possible cause)
P1301
lAn excessively high or low voltage from fuel injector
No.1 adjustment resistor is sent to ECMlHarness or connectors
(Injector adjustment resister circuit is open or
shorted.)
lFuel injector adjustment resistor P1302lAn excessively high or low voltage from fuel injector
No.2 adjustment resistor is sent to ECM
P1303
lAn excessively high or low voltage from fuel injector
No.3 adjustment resistor is sent to ECM
P1304
lAn excessively high or low voltage from fuel injector
No.4 adjustment resistor is sent to ECM
SEF817Y

EC-778
[YD]
DTC P1301 - P1304 FUEL INJECTOR ADJUSTMENT RESISTOR
Wiring Diagram
EBS008XS
TBWA0128E

DTC P1301 - P1304 FUEL INJECTOR ADJUSTMENT RESISTOR
EC-779
[YD]
C
D
E
F
G
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K
L
MA
EC
Diagnostic ProcedureEBS008XT
1.CHECK FUEL INJECTOR ADJUSTMENT RESISTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect fuel injector harness connector of malfunctioning
cylinder.
3. Turn ignition switch "ON".
4. Check voltage between fuel injector terminal 2 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check harness continuity for open and short between ECM and fuel injector.
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK FUEL INJECTOR ADJUSTMENT RESISTOR GROUND CIRCUIT
1. Turn ignition switch "OFF".
2. Check harness continuity between fuel injector terminal 1 and ECM terminal A25.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK FUEL INJECTOR ADJUSTMENT RESISTOR
Refer toEC-780, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace fuel injector.
PBIB0409E
Voltage: Approximately 5V
PBIB0414E
Continuity should exist.

EC-780
[YD]
DTC P1301 - P1304 FUEL INJECTOR ADJUSTMENT RESISTOR
5.CHECK INTERMITTENT INCIDENT
Refer toEC-699, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS008Z8
FUEL INJECTOR ADJUSTMENT RESISTOR
1. Disconnect fuel injector harness connector.
2. Check continuity between terminals as shown in the figure.
If NG, replace fuel injector.
Removal and InstallationEBS008Z9
FUEL INJECTOR
Refer toEM-135, "INJECTION TUBE AND FUEL INJECTOR". Continuity should exist.
PBIB0415E