NISSAN X-TRAIL 2003 Service Repair Manual

DTC P0327, P0328 KS
EC-633
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DTC P0327, P0328 KSPFP:22060
Component DescriptionEBS010ZA
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.
On Board Diagnosis LogicEBS010ZB
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS010ZC
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.
2. Start engine and run it for at least 5 seconds at idle speed.
3. If 1st trip DTC is detected, go to EC-635, "
Diagnostic Procedure"
.
WITHOUT CONSULT-II
1. Start engine and run it for at least 5 seconds at idle speed.
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 1st trip DTC is detected, go to EC-635, "
Diagnostic Procedure" .
PBIB0512E
DTC No. Trouble Diagnosis Name DTC 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.
SEF058Y

EC-634
[QR (WITHOUT EURO-OBD)]
DTC P0327, P0328 KS

Wiring DiagramEBS010ZD
TBWA0606E

DTC P0327, P0328 KS
EC-635
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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.
Diagnostic ProcedureEBS010ZE
1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check resistance between ECM terminal 15 and 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-II
1. Disconnect knock sensor harness connector.
2. Check harness continuity between knock sensor terminal 1 and ECM terminal 15.
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.
TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
15 W Knock sensor[Engine is running]

Idle speedApproximately 2.5V
54 —Sensor ground
(Knock sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
Resistance: Approximately 530 - 590kΩ [at 20°C (68°F)]
Continuity should exist.
PBIB0512E

EC-636
[QR (WITHOUT EURO-OBD)]
DTC P0327, P0328 KS

3. CHECK KNOCK SENSOR
Refer to EC-637, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace knock sensor.
4. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground three screws on the body.
Refer to EC-578, "
Ground Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace ground connections.
5. CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Reconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 54 and ground.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to power in harness or connectors.
PBIB2021E
Continuity should exist

DTC P0327, P0328 KS
EC-637
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6. CHECK INTERMITTENT INCIDENT
Refer to EC-570, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS010ZF
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 InstallationEBS010ZG
KNOCK SENSOR
Refer to EM-82, "CYLINDER BLOCK" . Resistance: Approximately 530 - 590kΩ [at 20°C (68°F)]
SEF227W

EC-638
[QR (WITHOUT EURO-OBD)]
DTC P0335 CKP SENSOR (POS)

DTC P0335 CKP SENSOR (POS)PFP:23731
Component DescriptionEBS010ZH
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 to the high and low parts of the teeth
cause the gap with the sensor to 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 ModeEBS010ZI
Specification data are reference values.
On Board Diagnosis LogicEBS010ZJ
DTC Confirmation ProcedureEBS010ZK
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-642, "
Diagnostic Procedure"
.
PBIB0562E
MONITOR ITEM CONDITION SPECIFICATION
ENG SPEED·

Run engine and compare CONSULT-II value with the tachometer indica-
tion.Almost the same speed as the
tachometer indication.
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

DTC P0335 CKP SENSOR (POS)
EC-639
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WITHOUT CONSULT-II
1. Crank engine for at least 2 seconds and run it for at least 5 seconds at idle speed.
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 1st trip DTC is detected, go to EC-642, "
Diagnostic Procedure" .

EC-640
[QR (WITHOUT EURO-OBD)]
DTC P0335 CKP SENSOR (POS)

Wiring DiagramEBS010ZL
TBWA0607E

DTC P0335 CKP SENSOR (POS)
EC-641
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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.)TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
14 PU/RCrankshaft position
sensor (POS)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at idleApproximately 3V
[Engine is running]

Engine speed is 2,000 rpmApproximately 3V
30 BSensor ground
(Crankshaft position
sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
PBIB0527E
PBIB0528E

EC-642
[QR (WITHOUT EURO-OBD)]
DTC P0335 CKP SENSOR (POS)

Diagnostic ProcedureEBS010ZM
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground three screws on the body.
Refer to EC-578, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
PBIB2021E