2007 NISSAN TIIDA p0420

EC-3
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P0171 FUEL INJECTION SYSTEM FUNC-
TION .................................................................
179
DTC Logic .............................................................179
Diagnosis Procedure .............................................180
P0172 FUEL INJECTION SYSTEM FUNC-
TION .................................................................
183
DTC Logic .............................................................183
Diagnosis Procedure .............................................184
P0222, P0223 TP SENSOR .............................187
Description ............................................................187
DTC Logic .............................................................187
Diagnosis Procedure .............................................187
Component Inspection ..........................................189
Special Repair Requirement .................................189
P0300, P0301, P0302, P0303, P0304 MIS-
FIRE ..................................................................
190
DTC Logic .............................................................190
Diagnosis Procedure .............................................191
P0327, P0328 KS .............................................195
Description ............................................................195
DTC Logic .............................................................195
Diagnosis Procedure .............................................195
Component Inspection ..........................................196
P0335 CKP SENSOR (POS) ............................197
Description ............................................................197
DTC Logic .............................................................197
Diagnosis Procedure .............................................198
Component Inspection ..........................................200
P0340 CMP SENSOR (PHASE) .......................201
Description ............................................................201
DTC Logic .............................................................201
Diagnosis Procedure .............................................202
Component Inspection ..........................................203
P0420 THREE WAY CATALYST FUNCTION ..205
DTC Logic .............................................................205
Component Function Check ..................................206
Diagnosis Procedure .............................................207
P0444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE .......................
210
Description ............................................................210
DTC Logic .............................................................210
Diagnosis Procedure .............................................210
Component Inspection ..........................................211
P0500 VSS .......................................................213
Description ............................................................213
DTC Logic .............................................................213
Component Function Check ..................................214
Diagnosis Procedure .............................................214
P0605 ECM .......................................................215
Description ............................................................215
DTC Logic .............................................................215
Diagnosis Procedure .............................................216
P1065 ECM .....................................................217
Description .............................................................217
DTC Logic ..............................................................217
Diagnosis Procedure .............................................217
P1111 IVT CONTROL SOLENOID VALVE ....219
Description .............................................................219
DTC Logic ..............................................................219
Diagnosis Procedure .............................................219
Component Inspection ...........................................220
P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .....................................................
222
Description .............................................................222
DTC Logic ..............................................................222
Diagnosis Procedure .............................................222
Special Repair Requirement ..................................223
P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ......................................................
224
Description .............................................................224
DTC Logic ..............................................................224
Diagnosis Procedure .............................................224
Component Inspection ...........................................227
Special Repair Requirement ..................................227
P1124, P1126 THROTTLE CONTROL MO-
TOR RELAY ....................................................
228
Description .............................................................228
DTC Logic ..............................................................228
Diagnosis Procedure .............................................228
P1128 THROTTLE CONTROL MOTOR .........231
Description .............................................................231
DTC Logic ..............................................................231
Diagnosis Procedure .............................................231
Component Inspection ...........................................232
Special Repair Requirement ..................................232
P1143 HO2S1 ..................................................233
Description .............................................................233
DTC Logic ..............................................................233
Diagnosis Procedure .............................................234
Component Inspection ...........................................235
P1144 HO2S1 ..................................................238
Description .............................................................238
DTC Logic ..............................................................238
Diagnosis Procedure .............................................239
Component Inspection ...........................................240
P1146 HO2S2 ..................................................243
Description .............................................................243
DTC Logic ..............................................................243
Component Function Check ..................................245
Diagnosis Procedure .............................................246
Component Inspection ...........................................247
P1147 HO2S2 ..................................................250

EC-11
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P0134 HO2S1 ...................................................823
Description ............................................................823
DTC Logic .............................................................823
Diagnosis Procedure .............................................824
Component Inspection ..........................................825
P0135 HO2S1 HEATER ...................................828
Description ............................................................828
DTC Logic .............................................................828
Diagnosis Procedure .............................................828
Component Inspection ..........................................829
P0138 HO2S2 ...................................................831
Description ............................................................831
DTC Logic .............................................................831
Diagnosis Procedure .............................................832
Component Inspection ..........................................833
P0139 HO2S2 ...................................................835
Description ............................................................835
DTC Logic .............................................................835
Component Function Check ..................................837
Diagnosis Procedure .............................................838
Component Inspection ..........................................839
P0141 HO2S2 HEATER ...................................841
Description ............................................................841
DTC Logic .............................................................841
Diagnosis Procedure .............................................841
Component Inspection ..........................................843
P0171 FUEL INJECTION SYSTEM FUNC-
TION .................................................................
844
DTC Logic .............................................................844
Diagnosis Procedure .............................................845
P0172 FUEL INJECTION SYSTEM FUNC-
TION .................................................................
848
DTC Logic .............................................................848
Diagnosis Procedure .............................................849
P0222, P0223 TP SENSOR .............................852
Description ............................................................852
DTC Logic .............................................................852
Diagnosis Procedure .............................................852
Component Inspection ..........................................854
Special Repair Requirement .................................854
P0300, P0301, P0302, P0303, P0304 MIS-
FIRE ..................................................................
855
DTC Logic .............................................................855
Diagnosis Procedure .............................................856
P0327, P0328 KS .............................................860
Description ............................................................860
DTC Logic .............................................................860
Diagnosis Procedure .............................................860
Component Inspection ..........................................861
P0335 CKP SENSOR (POS) ............................862
Description ............................................................862
DTC Logic ..............................................................862
Diagnosis Procedure .............................................863
Component Inspection ...........................................865
P0340 CMP SENSOR (PHASE) .....................866
Description .............................................................866
DTC Logic ..............................................................866
Diagnosis Procedure .............................................867
Component Inspection ...........................................868
P0420 THREE WAY CATALYST FUNCTION .870
DTC Logic ..............................................................870
Component Function Check ..................................871
Diagnosis Procedure .............................................872
P0444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ......................
875
Description .............................................................875
DTC Logic ..............................................................875
Diagnosis Procedure .............................................875
Component Inspection ...........................................876
P0500 VSS ......................................................878
Description .............................................................878
DTC Logic ..............................................................878
Component Function Check ..................................879
Diagnosis Procedure .............................................879
P0605 ECM .....................................................880
Description .............................................................880
DTC Logic ..............................................................880
Diagnosis Procedure .............................................881
P1111 IVT CONTROL SOLENOID VALVE ....882
Description .............................................................882
DTC Logic ..............................................................882
Diagnosis Procedure .............................................882
Component Inspection ...........................................883
P1121 ELECTRIC THROTTLE CONTROL
ACTUATOR .....................................................
885
Description .............................................................885
DTC Logic ..............................................................885
Diagnosis Procedure .............................................885
Special Repair Requirement ..................................886
P1122 ELECTRIC THROTTLE CONTROL
FUNCTION ......................................................
887
Description .............................................................887
DTC Logic ..............................................................887
Diagnosis Procedure .............................................887
Component Inspection ...........................................890
Special Repair Requirement ..................................890
P1124, P1126 THROTTLE CONTROL MO-
TOR RELAY ....................................................
891
Description .............................................................891
DTC Logic ..............................................................891
Diagnosis Procedure .............................................891
P1128 THROTTLE CONTROL MOTOR .........894

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-97
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If, during the state emissions inspection, the SRT indicates “CMPLT” for all test items, the inspector will con-
tinue with the emissions test. However, if the SRT indicates “INCMP” for one or more of the SRT items the
vehicle is returned to the customer untested.
NOTE:
If MI is ON during the state emissions inspection, the vehicle is also returned to the customer untested even
though the SRT indicates “CMPLT” for all test items. Therefore, it is important to check SRT (“CMPLT”) and
DTC (No DTCs) before the inspection.
SRT Item
The table below shows required self-diagnostic items to set the SRT to “CMPLT”.
*: If completion of several SRTs is required, perform driving patterns (DTC CONFIRMATION PROCEDURE), one by one based on the
priority for models with CONSULT-III.
SRT Set Timing
SRT is set as “CMPLT” after self-diagnosis has been performed one or more times. Completion of SRT is
done regardless of whether the result is OK or NG. The set timing is different between OK and NG results and
is shown in the table below.
OK: Self-diagnosis is carried out and the result is OK.
NG: Self-diagnosis is carried out and the result is NG.
—: Self-diagnosis is not carried out.
When all SRT related self-diagnoses showed OK results in a single cycle (Ignition OFF-ON-OFF), the SRT will
indicate “CMPLT”. → Case 1 above
SRT item
(CONSULT-III indication)Performance
Priority*Required self-diagnostic items to set the SRT to “CMPLT”Corresponding
DTC No.
CATALYST 2 Three way catalyst function P0420
HO2S 1 Heated oxygen sensor 1 P0133
Heated oxygen sensor 1 P1143
Heated oxygen sensor 1 P1144
Heated oxygen sensor 2 P0139
Heated oxygen sensor 2 P1146
HO2S HTR 1Heated oxygen sensor 1 heater P0135
Heated oxygen sensor 2 heater P0141
Self-diagnosis resultExample
DiagnosisIgnition cycle
← ON →OFF← ON →OFF← ON →OFF← ON →
All OK Case 1 P0400 OK (1) — (1) OK (2) — (2)
P0402 OK (1) — (1) — (1) OK (2)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “CMPLT” “CMPLT” “CMPLT” “CMPLT”
Case 2 P0400 OK (1) — (1) — (1) — (1)
P0402 — (0) — (0) OK (1) — (1)
P1402 OK (1) OK (2) — (2) — (2)
SRT of EGR “INCMP” “INCMP” “CMPLT” “CMPLT”
NG exists Case 3 P0400 OK OK — —
P0402 — — — —
P1402 NG — NGNG
(Consecutive
NG)
(1st trip)
DTC1st trip DTC — 1st trip DTCDTC
(= MI ON)
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”

P0420 THREE WAY CATALYST FUNCTION
EC-205
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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P0420 THREE WAY CATALYST FUNCTION
DTC LogicINFOID:0000000001670968
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

EC-206
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P0420 THREE WAY CATALYST FUNCTION
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-207, "Diagnosis Procedure".
NO >> INSPECTION END
7.PERFORM COMPONENT FUNCTION CHECK
Perform component function check. Refer to EC-206, "
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-207, "
Diagnosis Procedure".
Component Function CheckINFOID:0000000001670969
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-152, "
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.

P0420 THREE WAY CATALYST FUNCTION
EC-207
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
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Is the inspection result normal?
YES >> INSPECTION END
NO >> If the ratio is greater than above (0.75), it means three way catalyst does not operate properly. Go
to EC-207, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000001670970
1.CHECK EXHAUST SYSTEM
Visually check exhaust tubes and muffler for dent.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace.
2.CHECK EXHAUST GAS LEAK
1. Start engine and run it at idle.
2. Listen for an exhaust gas leak before the three way catalyst (manifold).
Is exhaust gas leak detected?
YES >> Repair or replace.
NO >> GO TO 3.
3.CHECK INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
Is intake air leak detected?
YES >> Repair or replace.
NO >> GO TO 4.
4.CHECK IGNITION TIMING AND IDLE SPEED
Check the following items. Refer to EC-26, "
IGNITION TIMING : Special Repair Requirement"
For specification, refer to EC-380, "Idle Speed", EC-380, "Ignition Timing".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Follow the EC-26, "
IGNITION TIMING : Special Repair Requirement".
5.CHECK FUEL INJECTOR
1. Stop engine and then turn ignition switch OFF.
2. Check the voltage between ECM harness connector terminals as follows.
(+) (–)
Condition Specification
Connector Terminal Connector Terminal
F1149
(HO2S1 signal)
F1156
Keeping engine speed at
2,000 rpm constant under
no loadSwitching freqency ratio ( A/B) : Less than 0.75
A : Heated oxygen sensor 2 voltage switching
frequency
B : Heated oxygen sensor 1 voltage switching
frequency 50
(HO2S2 signal)59
SEC502D

EC-208
< COMPONENT DIAGNOSIS >[HR16DE (WITH EURO-OBD)]
P0420 THREE WAY CATALYST FUNCTION
Is the inspection result normal?
YES >> GO TO 6.
NO >> Perform EC-313, "
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.
(+) (–)
Vo l ta g e
Connector Terminal Connector Terminal
F1025
E16 108 Battery voltage 29
30
31
Spark should be generated.
JMBIA0066GB
Spark should be generated.

P0420 THREE WAY CATALYST FUNCTION
EC-209
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NO >> Check ignition coil, power transistor and their circuits. Refer to EC-319, "Diagnosis Procedure".
8.CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to EM-47, "
Removal and Installa-
tion".
NO >> Repair or clean spark plug. Then GO TO 9.
9.CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug
and the grounded portion.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-47, "
Removal
and Installation".
10.CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove fuel injector assembly.
Refer to EM-35, "
Removal and Installation".
Keep fuel hose and all fuel injectors connected to fuel tube.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON.
Does fuel drip from fuel injector?
YES >> GO TO 11.
NO >> Replace the fuel injector(s) from which fuel is dripping.
11 .CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the trouble fixed?
YES >> INSPECTION END
NO >> Replace three way catalyst assembly.
SEF156I
Spark should be generated.