NISSAN X-TRAIL 2003 Service Repair Manual

DTC P0340 CMP SENSOR
EC-1363
[YD (WITHOUT EURO-OBD)]
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DTC P0340 CMP SENSORPFP:23731
DescriptionEBS0121L
The camshaft position sensor identifies a particular cylinder by
means of signals from the sensing plate (with five protrusions)
installed to the camshaft. The datum signal output is detected 90°
signal and sent to the ECM.
ECM Terminals and Reference ValueEBS0121M
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS0121N
MBIB0618E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
45 G/ORCamshaft position sensor
power supply[Ignition switch ON]Approximately 5.3V
47 G/R Camshaft position sensor[Engine is running]

Warm-up condition

Idle speed0 - 6V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm0 - 6V
66 G/YCamshaft position sensor
ground[Ignition switch ON]Approximately 0.3V
67 —Sensor ground
(Sensors shield circuit)[Ignition switch ON]Approximately 0.3V
MBIB0877E
MBIB0878E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0340Camshaft position sensor
circuitCamshaft position sensor signal is not detect by
the ECM when engine is running.

Harness or connectors
(The sensor circuit is open or
shorted.)

Camshaft position sensor

EC-1364
[YD (WITHOUT EURO-OBD)]
DTC P0340 CMP SENSOR

DTC Confirmation ProcedureEBS0121O
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
If engine could not start, keep ignition switch at START position
for 5 seconds.
4. If 1st trip DTC is detected, go to EC-1366, "
Diagnostic Proce-
dure" .
SEF817Y

DTC P0340 CMP SENSOR
EC-1365
[YD (WITHOUT EURO-OBD)]
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Wiring DiagramEBS0121P
TBWA0571E

EC-1366
[YD (WITHOUT EURO-OBD)]
DTC P0340 CMP SENSOR

Diagnostic ProcedureEBS0121Q
1. CHECK STARTING SYSTEM
Turn ignition switch to START position.
Ye s o r N o
Yes >> GO TO 2.
No >> Check starting system. (Refer to SC-21, "
STARTING SYSTEM" .)
2. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten engine ground screws. Refer to EC-1267, "
Ground Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.Does the engine turn over?
Does the starter motor operate?
PBIB2020E

DTC P0340 CMP SENSOR
EC-1367
[YD (WITHOUT EURO-OBD)]
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3. CHECK CMP SENSOR POWER SUPPLY CIRCUIT
1. Disconnect camshaft position (CMP) sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between CMP sensor terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK CMP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 66 and CMP sensor terminal 2.
4. 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 CMP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 47 and CMP sensor terminal 1.
Refer to Wiring Diagram.
2. Also check harness for short to ground or 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 CAMSHAFT POSITION SENSOR
Refer to EC-1368, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace camshaft position sensor.
PBIB1890E
Voltage: Approximately 5.3V
MBIB1010E
Continuity should exist.
Continuity should exist.

EC-1368
[YD (WITHOUT EURO-OBD)]
DTC P0340 CMP SENSOR

7. CHECK INTERMITTENT INCIDENT
Refer to EC-1260, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS0121R
CAMSHAFT POSITION SENSOR
1. Loosen the fixing bolt of the sensor.
2. Disconnect camshaft position sensor harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown in the figure.
6. If NG, replace camshaft position sensor.
Removal and InstallationEBS0121S
CAMSHAFT POSITION SENSOR
Refer to EM-153, "VACUUM PUMP" .
MBIB0647E
Terminal No. (Polarity) Resistance Ω [at 25°C (77°F)]
1 (+) - 2 (-)
Except 0
1 (+) - 3 (-)
2 (+) - 3 (-) Except 0 or ∞
MBIB1009E

DTC P0341 CMP SENSOR
EC-1369
[YD (WITHOUT EURO-OBD)]
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EC

DTC P0341 CMP SENSORPFP:23731
DescriptionEBS0121T
The camshaft position sensor identifies a particular cylinder by
means of signals from the sensing plate (with five protrusions)
installed to the camshaft. The datum signal output is detected 90°
signal and sent to the ECM.
ECM Terminals and Reference ValueEBS0121U
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS0121V
MBIB0618E
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
45 G/ORCamshaft position sensor
power supply[Ignition switch ON]Approximately 5.3V
47 G/R Camshaft position sensor[Engine is running]

Warm-up condition

Idle speed0 - 6V
[Engine is running]

Warm-up condition

Engine speed is 2,000 rpm0 - 6V
66 G/YCamshaft position sensor
ground[Ignition switch ON]Approximately 0.3V
67 —Sensor ground
(Sensors shield circuit)[Ignition switch ON]Approximately 0.3V
MBIB0877E
MBIB0878E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0341Camshaft position sensor
circuit range/performanceCamshaft position sensor signal is not in the nor-
mal pattern when engine is running.

Harness connectors
(The sensor circuit is opener
shorted.)

Camshaft position sensor

Signal plate

EC-1370
[YD (WITHOUT EURO-OBD)]
DTC P0341 CMP SENSOR

DTC Confirmation ProcedureEBS0121W
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
If engine could not start, keep ignition switch at START position
for 5 seconds.
4. If 1st trip DTC is detected, go to EC-1372, "
Diagnostic Proce-
dure" .
SEF817Y

DTC P0341 CMP SENSOR
EC-1371
[YD (WITHOUT EURO-OBD)]
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EC

Wiring DiagramEBS0121X
TBWA0571E

EC-1372
[YD (WITHOUT EURO-OBD)]
DTC P0341 CMP SENSOR

Diagnostic ProcedureEBS0121Y
1. CHECK STARTING SYSTEM
Turn ignition switch to START position.
Ye s o r N o
Yes >> GO TO 2.
No >> Check starting system. (Refer to SC-21, "
STARTING SYSTEM" .)
2. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten engine ground screws. Refer to EC-1267, "
Ground Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.Does the engine turn over?
Does the starter motor operate?
PBIB2020E