2007 NISSAN TIIDA Service Repair Manual

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Page 2217 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-868
< COMPONENT DIAGNOSIS >[MR18DE]
P0340 CMP SENSOR (PHASE)
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair open circuit

Page 2218 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0340 CMP SENSOR (PHASE)
EC-869
< COMPONENT DIAGNOSIS >[MR18DE]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace camshaft position sensor (PHASE).
T

Page 2219 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-870
< COMPONENT DIAGNOSIS >[MR18DE]
P0420 THREE WAY CATALYST FUNCTION
P0420 THREE WAY CATALYST FUNCTION
DTC LogicINFOID:0000000001161837
DTC DETECTION LOGIC
The ECM monitors the switching frequency

EC-870
< COMPONENT DIAGNOSIS >[MR18DE]
P0420 THREE WAY CATALYST FUNCTION
P0420 THREE WAY CATALYST FUNCTION
DTC LogicINFOID:0000000001161837
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of heated oxygen
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen storage capacity decreases, the heated oxygen sensor 2
switching frequency will increase.
When the frequency ratio of heated oxygen sensor 1 and heated
oxygen sensor 2 approaches a specified limit value, the three way
catalyst (manifold) malfunction is diagnosed.
DTC CONFIRMATION PROCEDURE
1.INSPECTION START
Do you have CONSULT-III?
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 7.
2.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:
Do not hold engine speed for more than the specified minutes below.
>> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE-I
With CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
5. Let engine idle for 1 minute.
6. Make sure that “COOLAN TEMP/S” indicates more than 70°C (158°F).
If not, warm up engine and go to next step when “COOLAN TEMP/S” indication reaches to 70°C (158°F).
7. Open engine hood.
8. Select “DTC & SRT CONFIRMATION” then “SRT WORK SUPPORT” mode with CONSULT-III.
9. Rev engine up to 2,000 to 3,000 rpm and hold it for 3 consecutive minutes then release the accelerator
pedal completely.
10. Check the indication of “CATALYST”.
Which is displayed on CONSULT-III screen?
SEF484YF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0420Catalyst system efficien-
cy below threshold Three way catalyst (manifold) does not oper-
ate properly.
Three way catalyst (manifold) does not have
enough oxygen storage capacity. Three way catalyst (manifold)
Exhaust tube
Intake air leaks
Fuel injector
Fuel injector leaks
Spark plug
Improper ignition timing

Page 2220 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0420 THREE WAY CATALYST FUNCTION
EC-871
< COMPONENT DIAGNOSIS >[MR18DE]
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CMPLT >> GO TO 6.
INCMP >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE-II
1. Wait 5 seconds a

P0420 THREE WAY CATALYST FUNCTION
EC-871
< COMPONENT DIAGNOSIS >[MR18DE]
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CMPLT >> GO TO 6.
INCMP >> GO TO 4.
4.PERFORM DTC CONFIRMATION PROCEDURE-II
1. Wait 5 seconds at idle.
2. Rev engine up to 2,000 to 3,000 rpm and maintain it until “INCMP” of “CATALYST” changes to “CMPLT” (It
will take approximately 5 minutes).
Does the indication change to
“CMPLT”?
YES >> GO TO 6.
NO >> GO TO 5.
5.PERFORM DTC CONFIRMATION PROCEDURE AGAIN
1. Stop engine and cool it down to less than 70°C (158°F).
2. Perform DTC CONFIRMATION PROCEDURE again.
>> GO TO 3.
6.PERFORM DTC CONFIRMATION PROCEDURE-III
Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-872, "Diagnosis Procedure".
NO >> INSPECTION END
7.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-871, "
Component Function Check".
NOTE:
Use component function check to check the overall function of the three way catalyst (manifold). During this
check, a 1st trip DTC might not be confirmed.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-872, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001161838
1.PERFORM COMPONENT FUNCTION CHECK-I
Without CONSULT-III
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
4. Let engine idle for 1 minute.
5. Check the voltage between ECM harness connector terminals as follows under the following condition.
Is the inspection result normal?
YES >> GO TO 2
NO >> Go to EC-817, "
DTC Logic".
2.PERFORM COMPONENT FUNCTION CHECK-II
Without CONSULT-III
1. Set voltmeter probes between ECM harness connector terminals as follows.
2. Make sure that the voltage switching frequency (high&low) HO2S2 voltage is very less than that of
HO2S1 voltage under the following condition.
(+) (–)
Condition Specification
Connector Terminal Connector Terminal
F1149
(HO2S1 signal)F11 56Keeping engine speed at 2,000
rpm constant under no loadThe voltage switch periodically more than
5 times within 10 seconds.

Page 2221 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-872
< COMPONENT DIAGNOSIS >[MR18DE]
P0420 THREE WAY CATALYST FUNCTION
Is the inspection result normal?
YES >> INSPECTION END
NO >> If the ratio is greater than above (0.75), it means three way cata

Page 2222 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0420 THREE WAY CATALYST FUNCTION
EC-873
< COMPONENT DIAGNOSIS >[MR18DE]
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Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform EC-975, "
Diagnosis Procedure".

P0420 THREE WAY CATALYST FUNCTION
EC-873
< COMPONENT DIAGNOSIS >[MR18DE]
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Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform EC-975, "
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 fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following pro-
cedure.
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 electrical 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 (19.7 in). Be careful not to get an electrical
shock while checking, because the electrical discharge
voltage becomes 20kV or more.
It might cause to damage the ignition 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 spark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 7.
7.CHECK FUNCTION OF IGNITION COIL-II
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a known-good spark plug.
3. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and
the grounded metal portion.
Is the inspection result normal?
YES >> GO TO 8.
(+) (–)
Voltag e
Connector Terminal Connector Terminal
F1025
E16 108 Battery voltage 29
30
31
Spark should be generated.
JMBIA0066GB
Spark should be generated.

Page 2223 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-874
< COMPONENT DIAGNOSIS >[MR18DE]
P0420 THREE WAY CATALYST FUNCTION
NO >> Check ignition coil, power transistor and their circuits. Refer to EC-981, "Diagnosis Procedure".
8.CHECK SPARK PLUG
Chec

Page 2224 of 5883

NISSAN TIIDA 2007 Service Repair Manual P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
EC-875
< COMPONENT DIAGNOSIS >[MR18DE]
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P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
DescriptionINFOID

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