Nissan Altima L32. Instruction — part 289
P0327, P0328 KS
EC-277
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
C
D
E
F
G
H
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J
K
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A
EC
N
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3.
CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between knock sensor harness connector and ECM harness connector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK KNOCK SENSOR
EC-277, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace knock sensor.
5.
CHECK INTERMITTENT INCIDENT
GI-42, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000004349315
1.
CHECK KNOCK SENSOR
1. Turn ignition switch OFF.
2. Disconnect knock sensor harness connector.
3. Check resistance between knock sensor terminals as follows.
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.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace knock sensor.
Knock sensor
ECM
Continuity
Connector Terminal Connector Terminal
F45
1
F13
61
Existed
Terminals
Resistance
1 and 2
Approx. 532 - 588 k
Ω [at 20°C (68°F)]
JMBIA1630ZZ
EC-278
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
P0335 CKP SENSOR (POS)
P0335 CKP SENSOR (POS)
Description
INFOID:0000000004349316
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.
DTC Logic
INFOID:0000000004349317
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
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.
>> GO TO 2.
JMBIA0062ZZ
JMBIA0714GB
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0335
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 run-
ning.
• Harness or connectors
[Crankshaft position sensor (POS) circuit
is open or shorted.]
(Refrigerant pressure sensor circuit is
shorted.)
(Accelerator pedal position sensor circuit
is shorted.)
(EVAP control system pressure sensor
circuit is shorted.)
(Tumble control valve position sensor cir-
cuit is shorted.)
• Crankshaft position sensor (POS)
• Refrigerant pressure sensor
• Accelerator pedal position sensor
• EVAP control system pressure sensor
• Tumble control valve position sensor
• Signal plate
P0335 CKP SENSOR (POS)
EC-279
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for at least 5 seconds.
If engine does not start, crank engine for at least 2 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000004349318
1.
CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E9. Refer to Ground Inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-I
1. Disconnect crankshaft position (CKP) sensor (POS) harness connector.
2. Turn ignition switch ON.
3. Check the voltage between CKP sensor (POS) harness connec-
tor and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 3.
3.
CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-II
1. Turn ignition switch ON.
2. Disconnect ECM harness connector.
3. Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit.
4.
CHECK CRANKSHAFT POSITION (CKP) SENSOR (POS) POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following terminals.
CKP sensor (POS)
Ground
Voltage
Connector Terminal
F30
1
Ground Approx. 5 V
PBIB3312E
CKP sensor (POS)
ECM
Continuity
Connector Terminal Connector Terminal
F30
1
F13
76
Existed
ECM
Sensor
Connector Terminal
Name
Connector Terminal
F13
72
Tumble control valve position sensor
F43
1
Refrigerant pressure sensor
E219
1
76
CKP sensor (POS)
F30
1
E10
87
APP sensor
E40
6
91
EVAP control system pressure sensor
B41
3
EC-280
< COMPONENT DIAGNOSIS >
[QR25DE FOR CALIFORNIA]
P0335 CKP SENSOR (POS)
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair short to ground or short to power in harness or connectors.
5.
CHECK COMPONENTS
Check the following.
• Refrigerant pressure sensor (Refer to
.)
• EVAP control system pressure sensor (Refer to
EC-318, "Component Inspection"
.)
• Tumble control valve position sensor (Refer to
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace malfunctioning components.
6.
CHECK APP SENSOR
EC-441, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 7.
7.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Go to
EC-29, "ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Require-
>> INSPECTION END
8.
CHECK CKP SENSOR (POS) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK CKP SENSOR (POS) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between CKP sensor (POS) harness connector and ECM harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
10.
CHECK CRANKSHAFT POSITION SENSOR (POS)
EC-281, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Replace crankshaft position sensor (POS).
CKP sensor (POS)
ECM
Continuity
Connector Terminal Connector Terminal
F30
2
F13
60
Existed
CKP sensor (POS)
ECM
Continuity
Connector Terminal Connector Terminal
F30
3
F13
65
Existed
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