NISSAN X-TRAIL 2001 Service Repair Manual

DTC P0327, P0328 KS
EC-951
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DTC P0327, P0328 KSPFP:22060
Component DescriptionEBS00MX0
The knock sensor is attached to the cylinder block. It senses engine knocking using a piezoelectric element. A
knocking vibration from the cylinder block is sensed as vibrational pressure. This pressure is converted into a
voltage signal and sent to the ECM.
ECM Terminals and Reference ValueEBS00MX1
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 LogicEBS00MX2
The MI will not light up for this diagnosis.
DTC Confirmation ProcedureEBS00MX3
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.
WITH CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode with CONSULT-II.
PBIB0512E
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
82 W Knock sensor[Engine is running]
●Idle speedApproximately 2.5V
DTC No.Trouble Diagnosis
NameDTC Detected Condition Possible Cause
P0327
0327Knock sensor circuit
low inputAn excessively low voltage from the sensor is
sent to ECM.
●Harness or connectors
(The sensor circuit is open or shorted.)
●Knock sensor P0328
0328Knock sensor circuit
high inputAn excessively high voltage from the sensor is
sent to ECM.

EC-952
[QR20(WITH EURO-OBD)]
DTC P0327, P0328 KS
2. Start engine and run it for at least 5 seconds at idle speed.
3. If 1st trip DTC is detected, go to EC-954, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y

DTC P0327, P0328 KS
EC-953
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Wiring DiagramEBS00MX4
TBWA0064E

EC-954
[QR20(WITH EURO-OBD)]
DTC P0327, P0328 KS
Diagnostic Procedure
EBS00MX5
1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check resistance between ECM terminal 82 and engine ground. Refer to Wiring Diagram.
NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 82 and knock sensor terminal 1.
Refer to Wiring Diagram.
3. 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 KNOCK SENSOR
Refer to EC-955, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace knock sensor.Resistance: Approximately 530 - 590kΩ [at 20°C (68°F)]
Continuity should exist.
PBIB0512E

DTC P0327, P0328 KS
EC-955
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4.RETIGHTEN GROUND SCREWS
Loosen and retighten engine ground screws.
>> GO TO 5.
5.CHECK INTERMITTENT INCIDENT
Refer to EC-847, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS00MX6
KNOCK SENSOR
Check resistance between knock sensor terminal 1 and ground.
NOTE:
It is necessary to use an ohmmeter which can measure more
than 10 MΩ.
CAUTION:
Do not use any knock sensors that have been dropped or phys-
ically damaged. Use only new ones.
Removal and InstallationEBS00MX7
KNOCK SENSOR
Refer to EM-73, "CYLINDER BLOCK" .
PBIB0494E
Resistance: Approximately 530 - 590kΩ [at 20°C (68°F)]
SEF478Y

EC-956
[QR20(WITH EURO-OBD)]
DTC P0335 CKP SENSOR (POS)
DTC P0335 CKP SENSOR (POS)
PFP:23731
Component DescriptionEBS00MX8
The crankshaft position sensor (POS) is located on the cylinder
block rear housing facing the gear teeth (cogs) of the signal plate at
the end of the crankshaft. It detects the fluctuation of the engine rev-
olution.
The sensor consists of a permanent magnet and Hall IC.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
CONSULT-II Reference Value in Data Monitor ModeEBS00MX9
Specification data are reference values.
ECM Terminals and Reference ValueEBS00MXA
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
PBIB0562E
MONITOR ITEM CONDITION SPECIFICATION
ENG SPEED
●Run engine and compare the CONSULT-II value with tachometer indica-
tion.Almost the same speed as the
tachometer indication.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
71 PU/RCrankshaft position
sensor (POS)[Engine is running]
●Warm-up condition
●Idle speedApproximately 3V
[Engine is running]
●Engine speed is 2,000 rpmApproximately 3V
PBIB0527E
PBIB0528E

DTC P0335 CKP SENSOR (POS)
EC-957
[QR20(WITH EURO-OBD)]
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On Board Diagnosis LogicEBS00MXB
DTC Confirmation ProcedureEBS00MXC
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10.5V with igni-
tion switch “ON”.
WITH CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode
with CONSULT-II.
2. Crank engine for at least 2 seconds and run it for at least 5 sec-
onds at idle speed.
3. If 1st trip DTC is detected, go to EC-959, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0335
0335Crankshaft position
sensor (POS) circuit
●The crankshaft position sensor (POS) signal
is not detected by the ECM during the first
few seconds of engine cranking.
●The proper pulse signal from the crankshaft
position sensor (POS) is not sent to ECM
while the engine is running.
●The crankshaft position sensor (POS) signal
is not in the normal pattern during engine
running.
●Harness or connectors
(The sensor circuit is open or shorted)
●Crankshaft position sensor (POS)
●Signal plate
SEF058Y

EC-958
[QR20(WITH EURO-OBD)]
DTC P0335 CKP SENSOR (POS)
Wiring Diagram
EBS00MXD
TBWA0065E
SMA for models with roof mounted driving lamp

DTC P0335 CKP SENSOR (POS)
EC-959
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Diagnostic ProcedureEBS00MXE
1.RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
>> GO TO 2.
2.CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT
1. Disconnect crankshaft position (CKP) sensor (POS) harness connector.
2. Turn ignition switch “ON”.
3. Check voltage between CKP sensor (POS) terminal 1 and
ground with CONSULT-II or tester.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
●Harness for open or short between ECM and crankshaft position sensor (POS)
●Harness for open or short between ECM relay and crankshaft position sensor (POS)
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB0494E
Voltage: Battery voltage
PBIB0512E
PBIB0664E

EC-960
[QR20(WITH EURO-OBD)]
DTC P0335 CKP SENSOR (POS)
4. CHECK CKP (POS) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between CKP sensor (POS) terminal 3 and engine ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 71 and CKP sensor (POS) terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-961, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace crankshaft position sensor (POS).
7. CHECK GEAR TOOTH
Visually check for chipping signal plate gear tooth.
OK or NG
OK >> GO TO 8.
NG >> Replace the signal plate.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-847, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Continuity should exist.