2007 NISSAN 350Z Engine Control Workshop Manual

DTC P0335 CKP SENSOR (POS)
EC-393
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Revision: 2006 November2007 350Z
10. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-393, "
Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> Replace CKP sensor (POS).
11 . CHECK GEAR TOOTH
Visually check for chipping signal plate gear tooth.
OK or NG
OK >> GO TO 12.
NG >> Replace the signal plate.
12. CHECK INTERMITTENT INCIDENT
Refer to EC-141, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS0008A
CRANKSHAFT POSITION SENSOR (POS)
1. Loosen the fixing bolt of the sensor.
2. Disconnect CKP sensor (POS) harness connector.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown in the figure.
Removal and InstallationNBS0008B
CRANKSHAFT POSITION SENSOR (POS)
Refer to EM-26, "OIL PAN AND OIL STRAINER" .
PBIB3564E
Terminal No. (Polarity) Resistance Ω [at 25°C (77°F)]
1 (+) - 2 (-)
Except 0 or ∞ 1 (+) - 3 (-)
2 (+) - 3 (-)
PBIA9584J

EC-394
DTC P0340, P0345 CMP SENSOR (PHASE)
Revision: 2006 November2007 350Z
DTC P0340, P0345 CMP SENSOR (PHASE)PFP:23731
Component DescriptionNBS0008C
The camshaft position sensor (PHASE) senses the retraction of
camshaft (INT) to identify a particular cylinder. The camshaft position
sensor (PHASE) senses the piston position.
When the crankshaft position sensor (POS) system becomes inoper-
ative, the camshaft position sensor (PHASE) provides various con-
trols of engine parts instead, utilizing timing of cylinder identification
signals.
The sensor consists of a permanent magnet and Hall IC.
When engine is running, the high and low parts of the teeth cause
the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor changes.
ECM receives the signals as shown in the figure.
CONSULT-III Reference Value in Data Monitor ModeNBS0008D
Specification data are reference values.
On Board Diagnosis LogicNBS0008E
NOTE:
If DTC P0340 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-514, "
DTC P0643 SENSOR POWER SUPPLY" .
PBIB3565E
PBIB3572E
MONITOR ITEM CONDITION SPECIFICATION
ENG SPEED

Run engine and compare CONSULT-III value with the tachometer indica-
tion.Almost the same speed as the
tachometer indication.

DTC P0340, P0345 CMP SENSOR (PHASE)
EC-395
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Revision: 2006 November2007 350Z
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0340
0340
(Bank 1)
Camshaft position sen-
sor (PHASE) circuit

The cylinder No. signal is not sent to ECM
for the first few seconds during engine
cranking.

The cylinder No. signal is not sent to ECM
during engine running.

The cylinder No. signal is not in the normal
pattern during engine running.

Harness or connectors
[CMP sensor (PHASE) (bank 1) circuit is
open or shorted.]

Camshaft position sensor (PHASE)
(bank 1)

Camshaft (INT)

Starter motor (Refer to SC-8, "START-
ING SYSTEM" .)

Starting system circuit (Refer to SC-8,
"STARTING SYSTEM" .)

Dead (Weak) battery
P0345
0345
(Bank 2)

Harness or connectors
[CMP sensor (PHASE) (bank 2) circuit is
open or shorted.]
[CKP sensor (POS) circuit is shorted.]
[EVT control position sensor (bank 2) cir-
cuit is shorted.]
(APP sensor 2 circuit is shorted.)
(EVAP control system pressure sensor
circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)

Camshaft position sensor (PHASE)
(bank 2)

Crankshaft position sensor (POS)

Exhaust valve timing control position
sensor (bank 2)

Accelerator pedal position sensor

EVAP control system pressure sensor

Refrigerant pressure sensor

Camshaft (INT)

Starter motor (Refer to SC-8, "START-
ING SYSTEM" .)

Starting system circuit (Refer to SC-8,
"STARTING SYSTEM" .)

Dead (Weak) battery

EC-396
DTC P0340, P0345 CMP SENSOR (PHASE)
Revision: 2006 November2007 350Z
DTC Confirmation ProcedureNBS0008F
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-III
1. Crank engine for at least 2 seconds and run it for at least 5 seconds at idle speed.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-400, "
Diagnostic Procedure" .
If 1st trip DTC is not detected, go to next step.
4. Maintaining engine speed at more than 800 rpm for at least 5 seconds.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-400, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III” above.

DTC P0340, P0345 CMP SENSOR (PHASE)
EC-397
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Revision: 2006 November2007 350Z
Wiring DiagramNBS0008G
BANK 1
TBWT1646E

EC-398
DTC P0340, P0345 CMP SENSOR (PHASE)
Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
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.)TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
59 BR/YCamshaft position sensor
(PHASE) (bank 1)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.3.0 - 5.0V
[Engine is running]

Engine speed: 2,000 rpm3.0 - 5.0V
60 R/LSensor power supply
[Camshaft position sensor
(PHASE) (bank 1), Exhaust
valve timing control position
sensor (bank 1), Power
steering pressure sensor][Ignition switch: ON]5V
96 P/LSensor ground
[Camshaft position sensor
(PHASE) (bank 1), Power
steering pressure sensor][Engine is running]

Warm-up condition

Idle speed0V
PBIB3553E
PBIB3554E

DTC P0340, P0345 CMP SENSOR (PHASE)
EC-399
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Revision: 2006 November2007 350Z
BANK 2
TBWT1647E

EC-400
DTC P0340, P0345 CMP SENSOR (PHASE)
Revision: 2006 November2007 350Z
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-III.
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.)
Diagnostic ProcedureNBS0008H
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-8, "
STARTING SYSTEM" .)
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
46 R/BSensor power supply
[Crankshaft position sensor
(POS)][Ignition switch: ON]5V
63 SBCamshaft position sensor
(PHASE) (bank 2)[Engine is running]

Warm-up condition

Idle speed
NOTE:
The pulse cycle changes depending on rpm at
idle.3.0 - 5.0V
[Engine is running]

Engine speed: 2,000 rpm1.0 - 4.0V
64 W/GSensor power supply
[Camshaft position sensor
(PHASE) (bank 2), Exhaust
valve timing control position
sensor (bank 2)][Ignition switch: ON]5V
92 B/PSensor ground
[Camshaft position sensor
(PHASE) (bank 2)][Engine is running]

Warm-up condition

Idle speed0V
103 GSensor power supply
(Accelerator pedal position
sensor 2)[Ignition switch: ON]5V
107 BRSensor power supply
(EVAP control system pres-
sure sensor)[Ignition switch: ON]5V
111 O RSensor power supply
(Refrigerant pressure sen-
sor)[Ignition switch: ON]5V
PBIB3553E
PBIB3554E
Does the engine turn over?
Does the starter motor operate?