DTC DETECTION LOGIC
NOTE: If DTC P0340 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to EC, "DTC Logic".
DTC No. | Trouble diagnosis (Trouble diagnosis content) | DTC detecting condition | Possible cause |
P1078 |
EXH TIM SEN/CIRC-B1 (Exhaust camshaft position sensor circuit) | An excessively high or low voltage from the sensor is sent to ECM. |
|
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V with ignition switch ON.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected?
YES >> Proceed to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK GROUND CONNECTION
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK EXHAUST CAMSHAFT POSITION SENSOR POWER SUPPLY CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK EXHAUST CAMSHAFT POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK EXHAUST CAMSHAFT POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK EXHAUST CAMSHAFT POSITION SENSOR
Refer to EC, "Component Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace exhaust camshaft position sensor. Refer to EM, "Exploded View".
6.CHECK CAMSHAFT (EXT)
Check the following.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Remove debris and clean the signal plate of camshaft rear end or replace camshaft. Refer to EM, "Removal and Installation".
7.CHECK INTERMITTENT INCIDENT
Refer to GI, "Intermittent Incident".
>> INSPECTION END
1.CHECK EXHAUST CAMSHAFT POSITION SENSOR-I
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace exhaust camshaft position sensor. Refer to EM, "Exploded View".
2.CHECK EXHAUST CAMSHAFT POSITION SENSOR-II
Check resistance exhaust camshaft position sensor terminals as follows.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace exhaust camshaft position sensor. Refer to EM, "Exploded View".
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Engine cooling system
The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Long Life Antifreeze/Coolant (blue) and
50% water to provide year-round antifreeze and
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Description
Perform the following work after the transaxle assembly is replaced.
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