DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
EC-785
< SERVICE INFORMATION > [MR18DE]
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Yes >> GO TO 4.
No >> GO TO 9.
4.CHECK FUEL INJECTOR
Does each fuel injector make an operating sound at idle?
Ye s o r N o
Yes >> GO TO 5.
No >> Check fuel injector(s) and circuit(s). Refer to EC-1009
.
5.CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump fuse (1) in IPDM E/R (2) to release fuel pres-
sure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
- : Vehicle front
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri- cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spark plug and the ignition coil
within 50 cm. Be careful not to get an electrical shock
while checking, because the el ectrical discharge voltage
becomes 20 kV or more.
• It might cause to damage the igni tion coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the sp ark might be generated even if the coil is mal-
functioning.
OK or NG
OK >> GO TO 9.
NG >> GO TO 6.
6.CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
PBIB3332E
Spark should be generated.
PBIB2958E
PBIB2325E
Revision: May 2010 2011 Versa
DTC P0327, P0328 KSEC-789
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DTC P0327, P0328 KS
Component DescriptionINFOID:0000000006341948
The knock sensor (1) is attached
to the cylinder block. It senses
engine knocking using a piezoelectric element. A knocking vibration
from the cylinder block is sensed as vibrational pressure. This pres-
sure is converted into a voltage signal and sent to the ECM.
• : Vehicle front
On Board Diagnosis LogicINFOID:0000000006341949
The MIL will not light up for these self-diagnoses.
DTC Confirmation ProcedureINFOID:0000000006341950
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 V at idle.
1. Start engine 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-791, "
Diagnosis Procedure".
PBIB3264E
DTC No. Trouble Diagnosis NameDTC Detected Condition Possible Cause
P0327
0327 Knock sensor circuit low
input An excessively low voltage from the sensor is
sent to ECM.
• Harness or connectors
(Knock sensor circuit is open or shorted.)
• Knock sensor
P0328
0328 Knock sensor circuit high
input An excessively high voltage from the sensor is
sent to ECM.
Revision: May 2010
2011 Versa
DTC P0327, P0328 KSEC-791
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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
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
EC-802
< SERVICE INFORMATION >[MR18DE]
DTC P0340 CMP SENSOR (PHASE)
OK or NG
OK >> GO TO 3.
NG >> Repair or replace ground connections.
3.CHECK CAMSHAFT POSITION (CMP) SENS
OR (PHASE) POWER SUPPLY CIRCUIT
1. Disconnect camshaft position (CMP) sensor (PHASE) (1) har- ness connector.
- : Vehicle front
2. Turn ignition switch ON.
3. Check voltage between CMP sensor (PHASE) terminal 1 and ground with CONSULT-III 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 (PHASE) GRO UND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between CMP sensor (PHASE) terminal 2 and ECM terminal 63.
Refer to Wiring Diagram.
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 (PHASE) INPUT SI GNAL CIRCUIT FOR OPEN AND SHORT
:Vehicle front
1. Body ground E24 2. Engine ground F93. Engine ground F16
4. Body ground E15
BBIA0698E
PBIB3327E
Voltage: Approximately 5 V
PBIB3312E
Continuity should exist.
Revision: May 2010 2011 Versa
DTC P0420 THREE WAY CATALYST FUNCTIONEC-807
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OK or NG
OK >> GO TO 5.
NG >> Follow the
EC-574, "
Basic Inspection".
5.CHECK FUEL INJECTOR
1. Stop engine and turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check voltage between ECM terminals 25, 29, 30, 31 and ground with CONSULT-III or tester. Refer to Wiring Diagram for fuel injectors, EC-1010, "
Wiring Diagram".
OK or NG
OK >> GO TO 6.
NG >> Perform EC-1011, "
Diagnosis Procedure".
6.CHECK FUNCTION OF IGNITION COIL-I
CAUTION:
Do the following procedure in the place where ventilation is good without the combustible.
1. Turn ignition switch OFF.
2. Remove fuel pump (1) fuse in IPDM E/R (2) to release fuel pres- sure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
- : Vehicle front
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel pressure.
5. Turn ignition switch OFF.
6. Remove all ignition coil harness connectors to avoid the electri- cal discharge from the ignition coils.
7. Remove ignition coil and spark plug of the cylinder to be checked.
8. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
9. Connect spark plug and harness connector to ignition coil.
10. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 - 0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.
11. Crank engine for about 3 seconds, and check whether spark is
generated between the spark plug and the grounded metal por-
tion.
CAUTION:
• Do not approach to the spark plug and the ignition coilwithin 50 cm. Be careful not to get an electrical shock
while checking, because the el ectrical discharge voltage
becomes 20 kV or more.
Items Specifications
Target idle speed A/T: 700 ±
50 rpm (in P or N position)
CVT: 700 ± 50 rpm (in P or N position)
M/T: 700 ± 50 rpm (in Neutral position)
Ignition timing A/T: 13 ±
5° BTDC (in P or N position)
CVT: 13 ± 5 ° BTDC (in P or N position)
M/T: 13 ± 5 ° BTDC (in Neutral position)
Voltage: Battery voltage
Spark should be generated.
PBIB2958E
PBIB2325E
Revision: May 2010 2011 Versa
DTC P0442 EVAP CONTROL SYSTEMEC-817
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OK or NG
OK >> GO TO 3.
NG >> 1. Open fuel filler cap, then clean cap and fuel filler neck threads using air blower.
2. Retighten until reteaching sound is heard.
3.CHECK FUEL FILLER CAP FUNCTION
Check for air releasing sound while opening the fuel filler cap.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.CHECK FUEL TANK VACUUM RELIEF VALVE
Refer to EC-528, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace fuel filler cap with a genuine one.
5.INSTALL THE PRESSURE PUMP
To locate the EVAP leak, install EVAP service port adapter and pressure pump to EVAP service port securely.
For the location of EVAP service port (2), refer to EC-526, "
Descrip-
tion".
• EVAP canister purge volume control solenoid valve (1)
• : Vehicle front
NOTE:
Improper installation of the EV AP service port adapter to the
EVAP service port may cause leaking.
With CONSULT-III>>GO TO 6.
Without CONSULT-III>>GO TO 7.
6.CHECK FOR EVAP LEAK With CONSULT-III
1. Turn ignition switch ON.
2. Select “EVAP SYSTEM CLOSE” of “WORK SUPPORT” mode with CONSULT-III.
3. Touch “START” and apply pressure into the EVAP line until the pressure indicator reaches the middle of the bar graph.
CAUTION:
• Never use compressed air or a high pressure pump.
• Do not exceed 4.12 kPa (0.042 kg/cm
2, 0.6 psi) of pressure in the system.
BBIA0703E
SEF916U
Revision: May 2010 2011 Versa