Nissan Juke Service and Repair Manual : P1078 EVT control position sensor
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-313, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect exhaust valve timing (EVT) control position sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between EVT control position sensor harness connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness connector for short to power and short to ground, between the following terminals.
*1: LHD models or RHD with CVT models *2: RHD with M/T models
Is inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK EVT CONTROL POSITION SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVT control position sensor harness connector and ECM harness connector.
4. Also check harness for short to power.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK EVT CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check the continuity between EVT control position sensor harness connector and ECM harness connector.
3. Also check harness for short to ground and to power.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace error-detected parts.
5.CHECK EVT CONTROL POSITION SENSOR
Check the EVT control position sensor. Refer to EC-315, "Component Inspection".
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace EVT control position sensor. Refer to EM-79, "Removal and Installation".
6.CHECK CAMSHAFT (EXT)
Check the following.
• Accumulation of debris to the signal plate of camshaft rear end • Chipping signal plate of camshaft rear end
s the inspection result normal? YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Remove debris and clean the signal plate of camshaft rear end or replace camshaft. Refer to EM-79, "Removal and Installation".
Component Inspection
1.EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR-I
1. Turn ignition switch OFF.
2. Disconnect EVT control position sensor harness connector.
3. Loosen the fixing bolt of the sensor.
4. Remove the sensor.
5. Visually check the sensor for chipping.
Is the inspection result normal? YES >> GO TO 2.
NO >> Replace EVT control position sensor. Refer to EM-67, "Exploded View".
2.EVT CONTROL POSITION SENSOR-II
Check resistance EVT control position sensor terminals as shown below.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVT control position sensor. Refer to EM-67, "Exploded View".
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REMOVAL OF LIQUID GASKET
• After removing mounting nuts and bolts, separate the mating surface
using the seal cutter [SST: KV10111100] (A) and remove old
liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap the seal cutter [SST: KV10111100] to insert it (B), an ...
Assembly and Installation
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several
different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the
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DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAG RESULT
With CONSULT-III
1. Turn ignition switch ON.
2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1. Turn ignition switch ON.
2. Check the air bag warning lamp statu ...