2011 NISSAN LATIO sensor

DTC P0327, P0328 KSEC-791
< SERVICE INFORMATION > [MR18DE]
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Diagnosis ProcedureINFOID:0000000006341952
1.CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check resistance between ECM terminal 37 and ground. Refer to Wiring Diagram. NOTE:
It is necessary to use an ohmmeter which can measure more than 10 MΩ .
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-II
1. Disconnect knock sensor (1) harness connector.
- : Vehicle front
2. Check harness continuity between ECM terminal 37 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 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK KNOCK SENSOR
Refer to EC-792, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace knock sensor.
4.CHECK GROUND CONNECTIONS
Loosen and retighten ground screws on the body.
Refer to EC-638, "
Ground Inspection".
TERMI-
NAL NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)
37 W Knock sensor [Engine is running]
• Idle speed
Approximately 2.5 V
40 — Sensor ground
(Knock sensor) [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
Resistance: Approximately 532 - 588 k
Ω [at 20 °C (68° F)]
Continuity should exist.
PBIB3264E
BBIA0698E
Revision: May 2010 2011 Versa

EC-792
< SERVICE INFORMATION >[MR18DE]
DTC P0327, P0328 KS
OK or NG
OK >> GO TO 5.
NG >> Repair or replace ground connections.
5.CHECK KNOCK SENSOR SHIELD CIRCUIT FOR OPEN AND SHORT
1. Reconnect knock sensor harness connector.
2. Check harness continuity between ECM terminal 40 and knock sensor terminal 2. Refer to Wiring Diagram.
3. Also check harness for short to ground and 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 INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component InspectionINFOID:0000000006341953
KNOCK SENSOR
1. 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
physically damaged. Use only new ones.
2. If NG, replace knock sensor.
Removal and InstallationINFOID:0000000006341954
KNOCK SENSOR
Refer to EM-203, "Disassembly and Assembly".
:Vehicle front
1. Body ground E24 2. Engine ground F9 3. Engine ground F16
4. Body ground E15
Continuity should exist
Resistance: Approximately 532 - 588 k Ω [at 20° C (68°F)]
SEF227W
Revision: May 2010 2011 Versa

DTC P0335 CKP SENSOR (POS)EC-793
< SERVICE INFORMATION > [MR18DE]
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DTC P0335 CKP SENSOR (POS)
Component DescriptionINFOID:0000000006341955
The crankshaft position sensor (POS) is located on the cylinder
block rear housing facing the gear t
eeth (cogs) of the signal plate at
the end of the crankshaft. It detects the fluctuation of the engine rev-
olution. 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-III Reference Val ue in Data Monitor ModeINFOID:0000000006341956
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000006341957
DTC Confirmation ProcedureINFOID:0000000006341958
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:
PBIA9209J
PBIB2997E
Monitor item Condition Specification
ENG SPEED • Run engine and compare CONSULT-III value with the tachometer indica-
tion. Almost the same speed as the ta-
chometer indication.
DTC No. Trouble diagnosis name
DTC detecting conditionPossible cause
P0335
0335 Crankshaft position sen-
sor (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
[Crankshaft position sensor (POS)
circuit is open or shorted.]
(Accelerator pedal position sensor
circuit is shorted.)
(Refrigerant pressure sensor circuit
is shorted.)
(EVAP control system pressure
sensor circuit is shorted.)
• Crankshaft position sensor (POS)
• Accelerator pedal position sensor
• Refrigerant pressure sensor
• EVAP control system pressure sen- sor
• Signal plate
Revision: May 2010 2011 Versa

EC-794
< SERVICE INFORMATION >[MR18DE]
DTC P0335 CKP SENSOR (POS)
Before performing the following procedure, confirm
that battery voltage is more than 10.5 V with igni-
tion switch ON.
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-795, "
Diagnosis Procedure".
Wiring DiagramINFOID:0000000006341959
BBWA3071E
Revision: May 2010 2011 Versa

DTC P0335 CKP SENSOR (POS)EC-795
< SERVICE INFORMATION > [MR18DE]
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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 wh
en measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground ot her than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnosis ProcedureINFOID:0000000006341960
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body. Refer to EC-638, "
Ground Inspection".
TERMI-
NAL NO. WIRE
COLOR ITEM
CONDITION DATA (DC Voltage)
61 W Crankshaft position
sensor (POS) [Engine is running]
•
Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle Approximately 4.0 V
[Engine is running]
• Engine speed: 2,000 rpm Approximately 4.0 V
62 R Sensor ground
[Crankshaft position sensor
(POS)] [Engine is running]
•
Warm-up condition
• Idle speed Approximately 0 V
74 W Sensor power supply
(Refrigerant pressure sen-
sor) [Ignition switch: ON]
Approximately 5 V
75 BR Sensor power supply
[Crankshaft position sensor
(POS)] [Ignition switch: ON]
Approximately 5 V
76 W EVAP control system pres-
sure sensor power supply [Ignition switch: ON]
Approximately 5 V
102 SB Sensor power supply
(APP sensor 2) [Ignition switch: ON]
Approximately 5 V
PBIB2998E
PBIB2999E
BBIA0698E
Revision: May 2010 2011 Versa

EC-796
< SERVICE INFORMATION >[MR18DE]
DTC P0335 CKP SENSOR (POS)
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK CRANKSHAFT POSITION (CKP) SENS
OR (POS) POWER SUPPLY CIRCUIT-I
1. Disconnect crankshaft position (CKP) sensor (POS) (1) harness connector.
2. Turn ignition switch ON.
3. Check voltage between CKP sensor (POS) terminal 1 and ground with CONSULT-III or tester.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3.CHECK CKP SENSOR (POS) POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between CKP sens or (POS) terminal 1 and ECM terminal 75.
Refer to Wiring Diagram.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit.
4.CHECK COMPONENTS POWER SUPPLY
Check harness for short to power and short to ground, between the following terminals.
OK or NG
OK >> GO TO 5.
NG >> Repair short to ground or short to power in harness or connectors.
: Vehicle front
1. Body ground E24 2. Engine ground F93. Engine ground F16
4. Body ground E15
PBIB3326E
Voltage: Approximately 5 V
PBIB3312E
Continuity should exist.
ECM terminal Sensor terminalReference Wiring Diagram
74 Refrigerant pressure sensor terminal 3 EC-1029, "
Wiring Diagram"
75Crankshaft position sensor (POS) terminal 1 EC-794, "Wiring Diagram"
76EVAP control system pressure sensor terminal 3 EC-853, "Wiring Diagram"
102APP sensor terminal 5 EC-972, "Wiring Diagram"
Revision: May 2010 2011 Versa

DTC P0335 CKP SENSOR (POS)EC-797
< SERVICE INFORMATION > [MR18DE]
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5.CHECK COMPONENTS
Check the following.
• Refrigerant pressure sensor. (Refer to EC-1030
.)
• EVAP control system pressure sensor. (Refer to EC-850
.)
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning components.
6.CHECK APP SENSOR
Refer to EC-969, "
Component Inspection".
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-580, "
Accelerator Pedal Released Position Learning".
3. Perform EC-580, "
Throttle Valve Closed Position Learning".
4. Perform EC-580, "
Idle Air Volume Learning".
>> INSPECTION END
8.CHECK CKP SENSOR (POS) GRO UND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between CKP sens or (POS) terminal 2 and ECM terminal 62.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 9.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
9.CHECK CKP SENSOR (POS) INPUT SI GNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between CKP s ensor (POS) terminal 3 and ECM terminal 61.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 10.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
10.CHECK CRANKSHAFT POSI TION SENSOR (POS)
Refer to EC-798, "
Component Inspection".
OK or NG
OK >> GO TO 11.
NG >> Replace crankshaft position 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. Continuity should exist.
Continuity should exist.
Revision: May 2010
2011 Versa

EC-798
< SERVICE INFORMATION >[MR18DE]
DTC P0335 CKP SENSOR (POS)
12.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component InspectionINFOID:0000000006341961
CRANKSHAFT POSITION SENSOR (POS)
1. Loosen the fixing bolt of the sensor.
2. Disconnect crankshaft position sensor (POS) 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 crankshaft position sensor (POS).
Removal and InstallationINFOID:0000000006341962
CRANKSHAFT POSITION SENSOR (POS)
Refer to EM-170, "Removal and Installation".
PBIA9210J
Terminal No. (Polarity) Resistance [at 25°C (77 °F)]
1 (+) - 2 (-) Except 0 or ∞ Ω
1 (+) - 3 (-)
2 (+) - 3 (-)
PBIA9584J
Revision: May 2010 2011 Versa