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EC-296
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DTC P0327, P0328 KS
Revision: 2005 July 2005 FX
Wiring DiagramABS006PY
TBWM0296E
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![INFINITI FX35 2005 Service Manual DTC P0327, P0328 KS EC-297
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Specification data are reference values and are measured between each terminal and ground.
CAUT INFINITI FX35 2005 Service Manual DTC P0327, P0328 KS EC-297
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Specification data are reference values and are measured between each terminal and ground.
CAUT](/manual-img/42/57020/w960_57020-1689.png)
DTC P0327, P0328 KS EC-297
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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.
Diagnostic ProcedureABS006PZ
1. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check resistance between ECM terminal 15 and ground. Refer to Wiring Diagram. NOTE:
It is necessary to use an ohmmeter which can measure more than 10 M Ω.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 15 and knock sensor terminal 1.
Refer to Wiring Diagram.
3. 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.
Harness connectors F20, F252
Harness for open or short between ECM and knock sensor
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK KNOCK SENSOR
Refer to EC-298, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace knock sensor.
TER-
MINAL NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
15 W Knock sensor [Engine is running]
Idle speedApproximately 2.5V
Resistance: Approximately 532 - 588 k
Ω [at 20 °C (68 °F)]
Continuity should exist.
PBIB1564E
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![INFINITI FX35 2005 Service Manual EC-298
[VQ35DE]
DTC P0327, P0328 KS
Revision: 2005 July 2005 FX
5. CHECK GROUND CONNECTIONS
Loosen and retighten ground three screws on the body. Refer to EC-170, "
Ground Inspection" .
OK or NG
O INFINITI FX35 2005 Service Manual EC-298
[VQ35DE]
DTC P0327, P0328 KS
Revision: 2005 July 2005 FX
5. CHECK GROUND CONNECTIONS
Loosen and retighten ground three screws on the body. Refer to EC-170, "
Ground Inspection" .
OK or NG
O](/manual-img/42/57020/w960_57020-1690.png)
EC-298
[VQ35DE]
DTC P0327, P0328 KS
Revision: 2005 July 2005 FX
5. CHECK GROUND CONNECTIONS
Loosen and retighten ground three screws on the body. Refer to EC-170, "
Ground Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace ground connections.
6. CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Disconnect knock sensor harness connector.
2. Check harness continuity between knock sensor terminal 2 and ground. Refer to Wiring Diagram.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F20, F252
Harness connectors F102, M82
Harness for open or short between knock sensor terminal 2 and ground
>> Repair open circuit or short power in harness or connectors.
8. CHECK INTERMITTENT INCIDENT
Refer to EC-163, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component InspectionABS006Q0
KNOCK SENSOR
Check resistance between knock sensor terminal 1 and ground.
NOTE:
It is necessary to use an ohmmeter which can measure more
than 10 M Ω.
CAUTION:
Do not use any knock sensors that have been dropped or phys-
ically damaged. Use only new ones.
PBIB2625E
Continuity should exist.
Resistance: Approximately 532 - 588 k Ω [at 20 °C (68 °F)]
SEF111Y
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DTC P0327, P0328 KS EC-299
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Removal and InstallationABS006Q1
KNOCK SENSOR
Refer to EM-245, "CYLINDER BLOCK" .
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![INFINITI FX35 2005 Service Manual EC-300
[VQ35DE]
DTC P0335 CKP SENSOR (POS)
Revision: 2005 July 2005 FX
DTC P0335 CKP SENSOR (POS)PFP:23731
Component DescriptionABS006Q2
The crankshaft position sensor (POS) is located on the oil pan INFINITI FX35 2005 Service Manual EC-300
[VQ35DE]
DTC P0335 CKP SENSOR (POS)
Revision: 2005 July 2005 FX
DTC P0335 CKP SENSOR (POS)PFP:23731
Component DescriptionABS006Q2
The crankshaft position sensor (POS) is located on the oil pan](/manual-img/42/57020/w960_57020-1692.png)
EC-300
[VQ35DE]
DTC P0335 CKP SENSOR (POS)
Revision: 2005 July 2005 FX
DTC P0335 CKP SENSOR (POS)PFP:23731
Component DescriptionABS006Q2
The crankshaft position sensor (POS) is located on the oil pan facing
the gear teeth (cogs) of the signal plate. It detects the fluctuation of
the engine revolution.
The sensor consists of a permanent magnet and Hall IC.
When the 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.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
ECM receives the signals as shown in the figure.
CONSULT-II Reference Value in Data Monitor ModeABS006Q3
Specification data are reference values.
On Board Diagnosis LogicABS006Q4
DTC Confirmation ProcedureABS006Q5
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.
PBIB0562E
PBIB2326E
MONITOR ITEM CONDITION SPECIFICATION
ENG SPEED
Run engine and compare CONSULT-II value with the tachometer
indication. Almost the same speed as the tachometer
indication.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0335
0335 Crankshaft position
sensor (POS) circuit
The crankshaft position sensor (POS) signal
is not detected by the ECM during the first
few seconds of engine cranking.
The proper pulse signal from the crankshaft
position sensor (POS) is not sent to ECM
while the engine is running.
The crankshaft position sensor (POS) signal
is not in the normal pattern during engine
running.
Harness or connectors
(The sensor circuit is open or shorted)
Crankshaft position sensor (POS)
Signal plate
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DTC P0335 CKP SENSOR (POS) EC-301
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WITH CONSULT-II
1. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2. Crank engine for at least 2 seconds and run it for at least 5 sec- onds at idle speed.
3. If 1st trip DTC is detected, go to EC-303, "
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. If 1st trip DTC is detected, go to EC-303, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
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EC-302
[VQ35DE]
DTC P0335 CKP SENSOR (POS)
Revision: 2005 July 2005 FX
Wiring DiagramABS006Q6
TBWM0395E
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Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each terminal and ground INFINITI FX35 2005 Service Manual DTC P0335 CKP SENSOR (POS) EC-303
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Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each terminal and ground](/manual-img/42/57020/w960_57020-1695.png)
DTC P0335 CKP SENSOR (POS) EC-303
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Revision: 2005 July 2005 FX
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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 ProcedureABS006Q7
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground three screws on the body. Refer to EC-170, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)
13 Y Crankshaft position sensor
(POS) [Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle Approximately 1.6V
[Engine is running]
Engine speed is 2,000 rpm Approximately 1.4V
PBIB1041E
PBIB1042E
PBIB2625E