2003 NISSAN X-TRAIL check engine

EC-220
[QR (WITH EURO-OBD)]
DTC P0335 CKP SENSOR (POS)
Diagnostic Procedure
EBS00B5Z
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.
lHarness for open or short between ECM and crankshaft position sensor (POS)
lHarness 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

DTC P0335 CKP SENSOR (POS)
EC-221
[QR (WITH EURO-OBD)]
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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 ground and 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 ground and 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 toEC-221, "
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 toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00B60
CRANKSHAFT POSITION SENSOR (POS)
1. Loosen the fixing bolt of the sensor.Continuity should exist.
Continuity should exist.

EC-226
[QR (WITH EURO-OBD)]
DTC P0340 CMP SENSOR (PHASE)
Diagnostic Procedure
EBS00B67
1.CHECK STARTING SYSTEM
Turn ignition switch to “START” position.
Ye s o r N o
Yes >>GOTO2.
No >> Check starting system. (Refer toSC-21, "
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

DTC P0340 CMP SENSOR (PHASE)
EC-227
[QR (WITH EURO-OBD)]
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4.DETECT MALFUNCTIONING PART
Check the following.
lHarness for open or short between ECM and camshaft position sensor (PHASE)
lHarness 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 toEC-228, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> Replace camshaft position sensor (PHASE).
8.CHECK CAMSHAFT (INTAKE)
Check the following.
lAccumulation of debris to the signal plate of camshaft rear end
lChipping 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. Continuity should exist.
Continuity should exist.
PBIB0565E

EC-230
[QR (WITH EURO-OBD)]
DTC P0420 THREE WAY CATALYST FUNCTION
6. Rev engine up to 2,000 to 3,000 rpm and maintain it until
“INCMP” of "CATALYST" changes to “CMPLT” (It will take
approximately 5 minutes).
If not “CMPLT”, stop engine and cool it down to less than 70°C
(158°F) and then retest from step 1.
7. Select “SELF-DIAG RESULTS” mode with CONSULT-II.
8. Confirm that the 1st trip DTC is not detected.
If the 1st trip DTC is detected, go toEC-231, "
Diagnostic Proce-
dure".
Overall Function CheckEBS00B6C
Use this procedure to check the overall function of the three way catalyst (Manifold). During this check, a 1st
trip DTC might not be confirmed.
CAUTION:
Always drive vehicle at a safe speed.
WITH GST
1. Start engine and drive vehicle at a speed of more than 70 km/h (43 MPH) for 2 consecutive minutes.
2. Stop vehicle with engine running.
3. Set voltmeters probes between ECM terminal 92 [HO2S1 signal]
and engine ground, and ECM terminal 95 [HO2S2 signal] and
engine ground.
4. Keep engine speed at 2,000 rpm constant under no load.
5. Make sure that the voltage switching frequency (high & low)
between ECM terminal 95 and engine ground is very less than
that of ECM terminal 92 and engine ground.
Switching frequency ratio = A/B
A: Heated oxygen sensor 2 voltage switching frequency
B: Heated oxygen sensor 1 voltage switching frequency
This ratio should be less than 0.75.
If the ratio is greater than above, it means three way catalyst
does not operate properly. Go toEC-231, "
Diagnostic Proce-
dure".
NOTE:
If the voltage at terminal 92 does not switch periodically more than 5
times within 10 seconds at step 5, perform trouble diagnosis for “DTC P0133” first. (SeeEC-166
.)
PBIB0567E
SEF535Z
PBIB0543E
PBIB0550E

DTC P0420 THREE WAY CATALYST FUNCTION
EC-231
[QR (WITH EURO-OBD)]
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Diagnostic ProcedureEBS00B6D
1.CHECK EXHAUST SYSTEM
Visually check exhaust tubes and muffler for dent.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2.CHECK EXHAUST AIR LEAK
1. Start engine and run it at idle.
2. Listen for an exhaust air leak before the three way catalyst
(Manifold).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3.CHECK INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace.
4.CHECK IGNITION TIMING
Check the following items. Refer toEC-64, "
Basic Inspection".
OK or NG
OK >> GO TO 5.
NG >> Follow the “Basic Inspection”.
SEF099P
Items Specifications
Ignition timingA/T 16°±5°BTDC (in “P” or “N” position)
M/T 14°±5°BTDC
Target idle speedA/T 700±50 rpm (in "P" or "N" position)
M/T 650±50 rpm

EC-232
[QR (WITH EURO-OBD)]
DTC P0420 THREE WAY CATALYST FUNCTION
5.CHECK INJECTORS
1. Refer to Wiring Diagram for Injectors,EC-344
.
2. Stop engine and then turn ignition switch “ON”.
3. Check voltage between ECM terminals 101, 102, 103, 104 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> PerformEC-345, "
Diagnostic Procedure".
6.CHECK IGNITION SPARK
1. Turn ignition switch “OFF”.
2. Disconnect ignition coil assembly from rocker cover.
3. Connect a known good spark plug to the ignition coil assembly.
4. Place end of spark plug against a suitable ground and crank engine.
5. Check for spark.
OK or NG
OK >> GO TO 7.
NG >> Check ignition coil with power transistor and their circuit.
Refer toEC-334, "
IGNITION SIGNAL".
7.CHECK INJECTOR
1. Turn ignition switch “OFF”.
2. Remove injector assembly.
Refer toEM-29, "
FUEL INJECTOR AND FUEL TUBE".
Keep fuel hose and all injectors connected to injector gallery.
3. Disconnect all ignition coil harness connectors.
4. Turn ignition switch “ON”.
Make sure fuel does not drip from injector.
OK or NG
OK (Does not drip.)>>GO TO 8.
NG (Drips.)>>Replace the injector(s) from which fuel is dripping.
8.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
Trouble is fixed.>>INSPECTION END
Trouble is not fixed.>>Replace three way catalyst (Manifold).Battery voltage should exist.
PBIB0568E
SEF575Q

DTC P0444, P0445 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID
VALVE
EC-237
[QR (WITH EURO-OBD)]
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4.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OPERATION
With CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Start engine.
3. Perform “PURG VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT-II. Check that engine speed varies according to the
valve opening.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer toEC-237, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace EVAP canister purge volume control solenoid valve.
6.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00B6L
EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT-II
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
Without CONSULT-II
Check air passage continuity of EVAP canister purge volume control
solenoid valve under the following conditions.
PBIB0569E
Condition
(PURG VOL CONT/V value)Air passage continuity
between A and B
100.0% Yes
0.0% No
PBIB0149E
ConditionAir passage continuity
between A and B
12V direct current supply between
terminals 1 and 2Ye s
No supply No
PBIB0150E