2001 NISSAN X-TRAIL ignition

EC-1238
[QR20(WITHOUT EURO-OBD)]
DTC P0327, P0328 KS
Diagnostic Procedure
EBS00N5Z
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-1239, "
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 P0335 CKP SENSOR (POS)
EC-1241
[QR20(WITHOUT EURO-OBD)]
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On Board Diagnosis LogicEBS00N65
DTC Confirmation ProcedureEBS00N66
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-1243, "
Diagnostic Proce-
dure" .
WITHOUT CONSULT-II
1. Crank engine 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-1243, "
Diagnostic Procedure" .
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-1243
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Diagnostic ProcedureEBS00N68
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-1244
[QR20(WITHOUT 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 Dia-
gram.
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-1245, "
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-1192, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Continuity should exist.

DTC P0340 CMP SENSOR (PHASE)
EC-1247
[QR20(WITHOUT EURO-OBD)]
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DTC Confirmation ProcedureEBS00N6E
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”.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Crank engine for at least 2 seconds and run it for at least 5 sec-
onds at idle speed.
4. If 1st trip DTC is detected, go to EC-1249, "
Diagnostic Proce-
dure" .
If 1st trip DTC is not detected, go to next step.
5. Maintaining engine speed at more than 800 rpm for at least 5
seconds.
6. If 1st trip DTC is detected, go to EC-1249, "
Diagnostic Proce-
dure" .
WITHOUT CONSULT-II
1. Crank engine 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-1249, "
Diagnostic Procedure" .
If 1st trip DTC is not detected, go to next step.
5. Start engine and maintaining engine speed at more than 800 rpm for at least 5 seconds.
6. Turn ignition switch “OFF”, wait at least 10 seconds and then turn “ON”.
7. Perform “Diagnostic Test Mode II (Self-diagnostic results)” with ECM.
8. If 1st trip DTC is detected, go to EC-1249, "
Diagnostic Procedure" .
SEF013Y

DTC P0340 CMP SENSOR (PHASE)
EC-1249
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Diagnostic ProcedureEBS00N6G
1.CHECK STARTING SYSTEM
Turn ignition switch to “START” position.
Ye s o r N o
Ye s > > G O T O 2 .
No >> Check starting system. (Refer to SC-20, "
STARTING SYSTEM" .)
2.RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
>> GO TO 3.
3.CHECK CAMSHAFT POSITION (CMP) SENSOR (PHASE) POWER SUPPLY CIRCUIT
1. Disconnect camshaft position (CMP) sensor (PHASE) harness
connector.
2. Turn ignition switch “ON”.
3. Check voltage between CMP sensor (PHASE) 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 5.
NG >> GO TO 4.Does the engine turn over?
Does the starter motor operate?
PBIB0494E
PBIB0496E
Voltage: Battery voltage
PBIB0664E

EC-1250
[QR20(WITHOUT EURO-OBD)]
DTC P0340 CMP SENSOR (PHASE)
4. DETECT MALFUNCTIONING PART
Check the following.
●Harness for open or short between ECM and camshaft position sensor (PHASE)
●Harness for open or short between ECM relay and camshaft position sensor (PHASE)
>> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check harness continuity between CMP sensor (PHASE) terminal 3 and engine 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.
6. CHECK CMP SENSOR (PHASE) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 63 and CMP sensor (PHASE) terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground or short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-1251, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace camshaft position sensor (PHASE).
8. CHECK CAMSHAFT (INTAKE)
Check the following.
●Accumulation of debris to the signal plate of camshaft rear end
●Chipping signal plate of camshaft rear end
OK or NG
OK >> GO TO 9.
NG >> Remove debris and clean the signal plate of camshaft
rear end or replace camshaft.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-1192, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
Continuity should exist.
PBIB0565E

EC-1252
[QR20(WITHOUT EURO-OBD)]
DTC P0500 VSS
DTC P0500 VSS
PFP:32702
Component DescriptionEBS00N6J
The vehicle speed signal is sent to the combination meter from the ESP/TCS/ABS control unit (with ESP mod-
els), 4WD/ABS control unit (without ESP models). The combination meter then sends a signal to the ECM.
ECM Terminals and Reference ValueEBS00N6K
Specification data are reference values and are measured between each terminal and body 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.)
On Board Diagnosis LogicEBS00N6L
DTC Confirmation ProcedureEBS00N6M
CAUTION:
Always drive vehicle at a safe speed.
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:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a
road test is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Start engine.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
81 L/B Vehicle speed sensor[Engine is running]
●Lift up the vehicle
●Vehicle speed is 40 km/h (25MPH)Approximately 2.3V
PBIB0531E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0500
0500Vehicle speed sensorThe almost 0 km/h (0 MPH) signal from
combination meter is sent to ECM even
when vehicle is being driven.
●Harness or connectors
(The sensor circuit is open or shorted)
●Wheel sensor
●ESP/TCS/ABS control unit (with ESP models)
●4WD/ABS control unit (without ESP models)
●Combination meter