2005 NISSAN NAVARA sensor

DTC P1274 FUEL PUMP
EC-259
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EC
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS01KK2
NOTE:
If DTC P1274 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for DTC P0652
or P0653. Refer toEC-227, "
DTC P0652, P0653 SENSOR POWER SUPPLY".
DTC Confirmation ProcedureEBS01KK3
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Tuning ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let idle for at least 5 seconds.
4. If DTC is detected, go toEC-261, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and let idle for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go toEC-261, "
Diagnostic Procedure".
29 B Fuel pump[Engine is running]
lWarm-up condition
lIdle speed0.5 - 1.0V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpm0.5 - 1.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0887E
MBIB0888E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1274
1274Fuel pump protectionFuel pressure is too much higher than the target
value.
lHarness or connectors
(The fuel pump circuit is open or
shorted.)
lFuel pump
lFuel rail pressure sensor
SEF817Y

DTC P1274 FUEL PUMP
EC-261
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Diagnostic ProcedureEBS01KK5
1.CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and fuel pump (2) harness
connector.
–Fuel pump temperature sensor (1)
3. Check harness continuity between ECM terminal 10 and fuel
pump terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
2.CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 29 and fuel pump terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK FUEL RAIL PRESSURE SENSOR
Refer toEC-122, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4.CHECK FUEL PUMP
Refer toEC-262, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Valve Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
>>INSPECTION END
6.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.
MBIB1389E
Continuity should exist.

EC-264
DTC P1275 FUEL PUMP
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS01KKB
NOTE:
If DTC P1275 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for DTC P0652
or P0653. Refer toEC-227, "
DTC P0652, P0653 SENSOR POWER SUPPLY".
DTC Confirmation ProcedureEBS01KKC
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Keep engine speed more than 2,000 rpm for at least 60 sec-
onds.
4. If DTC is detected, go toEC-267, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Keep engine speed more than 2,000 rpm for at least 60 seconds.
3. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
4. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
29 B Fuel pump[Engine is running]
lWarm-up condition
lIdle speed0.5 - 1.0V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpm0.5 - 1.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB0887E
MBIB0888E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1275
1275Fuel pump exchangeFuel pressure is too much higher than the target
value.
lHarness or connectors
(The fuel pump circuit is open or
shorted.)
lFuel pump
lFuel rail pressure sensor
SEF817Y

DTC P1275 FUEL PUMP
EC-267
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EC
Diagnostic ProcedureEBS01KKE
1.CHECK ECM OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector and fuel pump (2) harness
connectors.
–Fuel pump temperature sensor (1)
3. Check harness continuity between ECM terminal 10 and fuel
pump terminal 1.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
2.CHECK FUEL PUMP GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 29 and fuel pump terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK FUEL RAIL PRESSURE SENSOR
Refer toEC-122, "
Component Inspection".
OK or NG
OK >> GO TO 4.
NG >> Replace fuel rail.
4.CHECK FUEL PUMP
Refer toEC-268, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.REPLACE FUEL PUMP
1. Replace fuel pump.
2. Perform Fuel Pump Learning Valve Clearing. Refer toEC-24, "
Fuel Pump Learning Value Clearing".
>>INSPECTION END
6.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END Continuity should exist.
MBIB1389E
Continuity should exist.

DTC P2135 APP SENSOR
EC-275
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EC
DTC P2135 APP SENSORPFP:18002
DescriptionEBS01KKT
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensors detect the accelera-
tor pedal position and sends a signal to the ECM. The ECM uses the
signal to determine the amount of fuel to be injected.
CONSULT-II Reference Value in Data Monitor ModeEBS01KKU
Specification data are reference values.
*: This signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
ECM Terminals and Reference ValueEBS01KKV
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.
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL POS SEN*
lIgnition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.65 - 0.87V
Accelerator pedal: Fully depressed More than 4.3V
ACCEL SEN 2*
lIgnition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.28 - 0.48V
Accelerator pedal: Fully depressed More than 2.0V
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
82 WAccelerator pedal position sen-
sor 1 power supply[Ignition switch ON]Approximately 5.3V
83 RAccelerator pedal position sen-
sor 1[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully released0.95 - 1.17V
[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully depressedMore than 4.6V
84 BAccelerator pedal position sen-
sor 1 ground[Ignition switch ON]Approximately 0.3V
85 —Sensor ground
(Accelerator pedal position sen-
sor shield circuit)[Ignition switch ON]Approximately 0.3V
90 WAccelerator pedal position sen-
sor 2 power supply[Ignition switch ON]Approximately 5.3V

EC-276
DTC P2135 APP SENSOR
On Board Diagnosis Logic
EBS01KKW
The MI will not light up for this self-diagnosis.
NOTE:
lIf DTC P2135 is displayed with DTC P0642 or P0643, first perform the trouble diagnosis for DTC
P0642 or P0643. Refer toEC-222, "
DTC P0642, P0643 SENSOR POWER SUPPLY".
lIf DTC P2135 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for DTC
P0652 or P0653. Refer toEC-227, "
DTC P0652, P0653 SENSOR POWER SUPPLY".
DTC Confirmation ProcedureEBS01KKX
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. Depress accelerator pedal slowly spending 5 seconds, and then
release it slowly spending 5 seconds.
5. If DTC is detected, go toEC-278, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait at least 5 seconds.
2. Depress accelerator pedal slowly spending 5 seconds, and then release it slowly spending 5 seconds.
3. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
4. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
5. If DTC is detected, go toEC-278, "
Diagnostic Procedure".
91 RAccelerator pedal position sen-
sor 2[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully released0.58 - 0.78V
[Ignition switch ON]
lEngine: Stopped
lAccelerator pedal: Fully depressedMore than 2.3V
92 BAccelerator pedal position sen-
sor 2 ground[Ignition switch ON]Approximately 0.3V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2135
2135Accelerator pedal position
sensor 1, 2 signal correla-
tionThe correlation between APP sensor 1 signal
and APP sensor 2 signal is out of the normal
range.
lHarness or connectors
(The APP sensor circuit is open or
shorted.)
lAccelerator pedal position sensor
SEF817Y

DTC P2135 APP SENSOR
EC-277
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EC
Wiring DiagramEBS01KKY
MBWA1054E

EC-278
DTC P2135 APP SENSOR
Diagnostic Procedure
EBS01KKZ
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer toEC-78, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK APP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor (1) harness
connector.
2. Turn ignition switch ON.
3. Check voltage between APP sensor terminals 1, 2 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
: Vehicle front
1. Body ground E21 2. ECM 3. Body ground E41
4. A/C high-pressure service valve 5. ABS actuator and electric unit
(control unit)6. Body ground E61
MBIB1218E
MBIB1201E
Voltage: Approximately 5.3V
MBIB1244E