P0430 INFINITI FX35 2006 User Guide

DTC P0420, P0430 THREE WAY CATALYST FUNCTION EC-379
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Revision: 2006 December 2006 FX35/FX45
Diagnostic ProcedureNBS003QR
1. CHECK EXHAUST SYSTEM
Visually check exhaust tubes and muffler for dent.
OK or NG
OK >> GO TO 2.
NG >> 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 1.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace.
3. CHECK INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace.
4. CHECK IGNITION TIMING
Check the following items. Refer to EC-77, "
Basic Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Follow the EC-77, "
Basic Inspection" .
PBIB1922E
Items Specifications
Target idle speed 650 ± 50 rpm (in P or N position)
Ignition timing 15 ± 5 ° BTDC (in P or N position)

EC-380
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 December 2006 FX35/FX45
5. CHECK FUEL INJECTOR
1. Stop engine and then turn ignition switch ON.
2. Check voltage between ECM terminals 21, 22, 23, 40, 41, 42 and ground with CONSULT-II or tester.
Refer to Wiring Diagram for fuel injector, EC-629, "
Wiring Dia-
gram" .
OK or NG
OK >> GO TO 6.
NG >> Perform EC-630, "
Diagnostic 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. Reconnect ECM harness connector disconnected.
3. Remove fuel pump fuse in IPDM E/R to release fuel pressure. NOTE:
Do not use CONSULT-II to release fuel pressure, or fuel pres-
sure applies again during the following procedure.
4. Start engine.
5. After engine stalls, crank it two or three times to release all fuel pressure.
6. Turn ignition switch OFF.
7. Remove all ignition coil harness connectors to avoid the electri- cal discharge from the ignition coils.
8. Remove ignition coil and spark plug of the cylinder to be checked.
9. Crank engine for 5 seconds or more to remove combustion gas in the cylinder.
10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm between the edge of the spark plug and grounded metal portion
as shown in the figure.
12. 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 50cm. 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 is taken.
NOTE:
When the gap is less than 13 mm, the spark might be generated even if the coil is malfunctioning.
OK or NG
OK >> GO TO 10.
NG >> GO TO 7. Voltage: Battery voltage
PBIB2250E
Spark should be generated.
PBIB1603E
PBIB2325E

DTC P0420, P0430 THREE WAY CATALYST FUNCTION EC-381
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Revision: 2006 December 2006 FX35/FX45
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.
OK or NG
OK >> GO TO 8.
NG >> Check ignition coil, power transistor and their circuits. Refer to EC-649, "
IGNITION SIGNAL" .
8. CHECK SPARK PLUG
Check the spark plugs and check for fouling, etc.
OK or NG
OK >> GO TO 9.
NG >> Repair or replace spark plug (s) with standard type one
(s). For spark plug type ignition coil. Refer to MA-20,
"Changing Spark Plugs (Platinum-Tipped Type)" .
9. CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
OK or NG
OK >> INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to MA-20, "
Changing
Spark Plugs (Platinum-Tipped Type)" .
10. CHECK FUEL INJECTOR
1. Turn ignition switch OFF.
2. Remove fuel injector assembly. Refer to EM-45, "
FUEL INJECTOR AND FUEL TUBE" .
Keep fuel hose and all fuel injectors connected to fuel injector gallery.
3. Disconnect all ignition coil harness connectors.
4. Reconnect all fuel injector harness connectors disconnected.
5. Turn ignition switch ON. Make sure fuel does not drip from fuel injector.
OK or NG
OK (Does not drip.)>>GO TO 11.
NG (Drips.)>>Replace the fuel injector(s) from which fuel is dripping. Spark should be generated.
SEF156I
Spark should be generated.

EC-382
[VQ35DE]
DTC P0420, P0430 THREE WAY CATALYST FUNCTION
Revision: 2006 December 2006 FX35/FX45
11 . CHECK INTERMITTENT INCIDENT
Refer to EC-148, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
Trouble is fixed.>> INSPECTION END
Trouble is not fixed.>>Replace three way catalyst assembly.

INDEX FOR DTC EC-677
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Revision: 2006 December 2006 FX35/FX45P0139 0139 HO2S2 (B1) EC-964
P0150 0150 A/F SENSOR1 (B2)EC-900
P0151 0151 A/F SENSOR1 (B2)EC-910
P0152 0152 A/F SENSOR1 (B2)EC-919
P0153 0153 A/F SENSOR1 (B2)EC-928
P0157 0157 HO2S2 (B2)EC-940
P0158 0158 HO2S2 (B2)EC-951
P0159 0159 HO2S2 (B2)EC-964
P0171 0171 FUEL SYS-LEAN-B1EC-975
P0172 0172 FUEL SYS-RICH-B1EC-986
P0174 0174 FUEL SYS-LEAN-B2EC-975
P0175 0175 FUEL SYS-RICH-B2EC-986
P0181 0181 FTT SENSOREC-997
P0182 0182 FTT SEN/CIRCUITEC-1003
P0183 0183 FTT SEN/CIRCUITEC-1003
P0222 0222 TP SEN 1/CIRCEC-1008
P0223 0223 TP SEN 1/CIRCEC-1008
P0300 0300 MULTI CYL MISFIREEC-1015
P0301 0301 CYL 1 MISFIREEC-1015
P0302 0302 CYL 2 MISFIREEC-1015
P0303 0303 CYL 3 MISFIREEC-1015
P0304 0304 CYL 4 MISFIREEC-1015
P0305 0305 CYL 5 MISFIREEC-1015
P0306 0306 CYL 6 MISFIREEC-1015
P0307 0307 CYL 7 MISFIREEC-1015
P0308 0308 CYL 8 MISFIREEC-1015
P0327 0327 KNOCK SEN/CIRC-B1EC-1025
P0328 0328 KNOCK SEN/CIRC-B1EC-1025
P0332 0332 KNOCK SEN/CIRC-B2EC-1025
P0333 0333 KNOCK SEN/CIRC-B2EC-1025
P0335 0335 CKP SEN/CIRCUITEC-1030
P0340 0340 CMP SEN/CIRC-B1EC-1037
P0420 0420 TW CATALYST SYS-B1EC-1044
P0430 0430 TW CATALYST SYS-B2EC-1044
P0441 0441 EVAP PURG FLOW/MONEC-1049
P0442 0442 EVAP SMALL LEAKEC-1054
P0443 0443 PURG VOLUME CONT/VEC-1063
P0444 0444 PURG VOLUME CONT/VEC-1071
P0445 0445 PURG VOLUME CONT/VEC-1071
P0447 0447 VENT CONTROL VALVEEC-1078
P0448 0448 VENT CONTROL VALVEEC-1085
P0451 0451 EVAP SYS PRES SENEC-1091
DTC*1
Items
(CONSULT-II screen terms) Reference page
CONSULT-II
GST*
2ECM*3

INDEX FOR DTC EC-683
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Revision: 2006 December 2006 FX35/FX45
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by SAE J2012.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: The troubleshooting for this DTC needs CONSULT-II.
*5: When the fail-safe operations for both self-diagnoses occur at the same time, the MIL illuminates.
*6: Models with ICC. PNP SW/CIRC P0705 0705
AT- 11 2
PURG VOLUME CONT/V P0443 0443EC-1063
PURG VOLUME CONT/V P0444 0444EC-1071
PURG VOLUME CONT/V P0445 0445EC-1071
PW ST P SEN/CIRC P0550 0550 EC-1137
SENSOR POWER/CIRC P0643 0643EC-1149
TCC SOLENOID/CIRC P0740 0740 AT-125
TCM P0700 0700 AT- 111
TCS C/U FUNCTN P1211 1211EC-1169
TCS/CIRC P1212 1212EC-1170
THERMSTAT FNCTN P0128 0128 EC-898
TP SEN 1/CIRC P0222 0222EC-1008
TP SEN 1/CIRC P0223 0223EC-1008
TP SEN 2/CIRC P0122 0122 EC-885
TP SEN 2/CIRC P0123 0123EC-885
TP SENSOR P2135 2135EC-1268
TURBINE SENSOR P0717 0717 AT- 11 6
TW CATALYST SYS-B1 P0420 0420EC-1044
TW CATALYST SYS-B2 P0430 0430EC-1044
VEH SPD SEN/CIR AT*5P0720 0720AT- 11 8
VEH SPEED SEN/CIRC*5P0500 0500EC-1131
VENT CONTROL VALVE P0447 0447 EC-1078
VENT CONTROL VALVE P0448 0448EC-1085
VIAS S/V CIRC P1800 1800EC-1224
Items
(CONSULT-II screen terms) DTC*
1
Reference page
CONSULT-II
GST*
2ECM*3

EC-716
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
HO2S2 (B1) P0138 0138 ××2×EC-951
HO2S2 (B1) P0139 0139 ××2×EC-964
A/F SENSOR1 (B2) P0150 0150 — ×2 ×EC-900
A/F SENSOR1 (B2) P0151 0151 — ×2 ×EC-910
A/F SENSOR1 (B2) P0152 0152 — ×2 ×EC-919
A/F SENSOR1 (B2) P0153 0153 ××2×EC-928
HO2S2 (B2) P0157 0157 ××2×EC-940
HO2S2 (B2) P0158 0158 ××2×EC-951
HO2S2 (B2) P0159 0159 ××2×EC-964
FUEL SYS-LEAN-B1 P0171 0171 — — 2 ×EC-975
FUEL SYS-RICH-B1 P0172 0172 — — 2 ×EC-986
FUEL SYS-LEAN-B2 P0174 0174 — — 2 ×EC-975
FUEL SYS-RICH-B2 P0175 0175 — — 2 ×EC-986
FTT SENSOR P0181 0181 — — 2 ×EC-997
FTT SEN/CIRCUIT P0182 0182 — — 2 ×EC-1003
FTT SEN/CIRCUIT P0183 0183 — — 2 ×EC-1003
TP SEN 1/CIRC P0222 0222 — — 1 ×EC-1008
TP SEN 1/CIRC P0223 0223 — — 1 ×EC-1008
MULTI CYL MISFIRE P0300 0300 — — 2 ×EC-1015
CYL 1 MISFIRE P0301 0301 — — 2 ×EC-1015
CYL 2 MISFIRE P0302 0302 — — 2 ×EC-1015
CYL 3 MISFIRE P0303 0303 — — 2 ×EC-1015
CYL 4 MISFIRE P0304 0304 — — 2 ×EC-1015
CYL 5 MISFIRE P0305 0305 — — 2 ×EC-1015
CYL 6 MISFIRE P0306 0306 — — 2 ×EC-1015
CYL 7 MISFIRE P0307 0307 — — 2 ×EC-1015
CYL 8 MISFIRE P0308 0308 — — 2 ×EC-1015
KNOCK SEN/CIRC-B1 P0327 0327 — — 2 — EC-1025
KNOCK SEN/CIRC-B1 P0328 0328 — — 2 —EC-1025
KNOCK SEN/CIRC-B2 P0332 0332 — — 2 —EC-1025
KNOCK SEN/CIRC-B2 P0333 0333 — — 2 —EC-1025
CKP SEN/CIRCUIT P0335 0335 — — 2×EC-1030
CMP SEN/CIRC-B1 P0340 0340 — — 2 ×EC-1037
TW CATALYST SYS-B1 P0420 0420 ××2×EC-1044
TW CATALYST SYS-B2 P0430 0430 ××2×EC-1044
EVAP PURG FLOW/MON P0441 0441 ××2×EC-1049
EVAP SMALL LEAK P0442 0442 ××2×EC-1054
PURG VOLUME CONT/V P0443 0443 — — 2 ×EC-1063
PURG VOLUME CONT/V P0444 0444 — — 2 ×EC-1071
PURG VOLUME CONT/V P0445 0445 — — 2 ×EC-1071
VENT CONTROL VALVE P0447 0447 — — 2 ×EC-1078
VENT CONTROL VALVE P0448 0448 — — 2 ×EC-1085
Items
(CONSULT-II screen terms) DTC*
1
SRT code
Test value/
Te s t l i m i t
(GST only) Trip MIL
Reference
page
CONSULT-II
GST*
2ECM*3

ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-721
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Revision: 2006 December 2006 FX35/FX45
*: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the pr iority for
models with CONSULT-II.
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
When all SRT related self-diagnoses showed OK results through several different cycles, the SRT will indicate
“CMPLT” at the time the respective self-diagnoses have at least one OK result. → Case 2 above
If one or more SRT related self-diagnoses showed NG results in 2 consecutive cycles, the SRT will also indi-
cate “CMPLT”. → Case 3 above
The table above shows that the minimum number of cycles for setting SRT as “INCMP” is one (1) for each
self-diagnosis (Case 1 & 2) or two (2) for one of self-diagnoses (Case 3). However, in preparation for the state
emissions inspection, it is unnecessary for each self-diagnosis to be executed twice (Case 3) for the following
reasons:

The SRT will indicate “CMPLT” at the time the respective self-diagnoses have one (1) OK result.

The emissions inspection requires “CMPLT” of the SRT only with OK self-diagnosis results.
SRT item
(CONSULT-II indication) Performance
Priority* Required self-diagnostic items to set the SRT to “CMPLT” Corresponding
DTC No.
CATALYST 2 Three way catalyst function P0420, P0430
EVAP SYSTEM 2 EVAP control system purge flow monitoring P0441 1 EVAP control system P0442
2 EVAP control system P0456
HO2S 2 Air fuel ratio (A/F) sensor 1 P0133, P0153 Heated oxygen sensor 2 P0137, P0157
Heated oxygen sensor 2 P0138, P0158
Heated oxygen sensor 2 P0139, P0159
Self-diagnosis result Example
Diagnosis Ignition 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 — NG NG
(Consecutive NG)
(1st trip) DTC 1st trip DTC — 1st trip DTC DTC
(= MIL ON)
SRT of EGR “INCMP” “INCMP” “INCMP” “CMPLT”

EC-726
[VK45DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Revision: 2006 December 2006 FX35/FX45
TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)
The following is the information specified in Service $06 of SAE J1979.
The test value is a parameter used to determine whether a system/circuit diagnostic test is OK or NG while
being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the
maximum or minimum value and is compared with the test value being monitored.
These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be dis-
played on the GST screen.
Item Self-diagnostic test item DTC Test value (GST display)
Test limit Conversion
TID CID
CATALYST Three way catalyst function (Bank 1)
P0420 01H 01H Max. 1/128
P0420 02H 81H Min. 1
Three way catalyst function (Bank 2) P0430 03H 02H Max. 1/128
P0430 04H 82H Min. 1
EVAP
SYSTEM EVAP control system (Small leak) P0442 05H 03H Max.
1/128 mm
2
EVAP control system purge flow monitoring P0441 06H 83H Min. 20 mV
EVAP control system (Very small leak) P0456 07H 03H Max. 1/128 mm
2
HO2S Air fuel ratio (A/F) sensor 1 (Bank 1)
P0131 41H 8EH Min. 5mV
P0132 42H 0EH Max. 5mV
P2A00 43H 0EH Max. 0.002
P2A00 44H 8EH Min. 0.002
P0133 45H 8EH Min. 0.002
P0130 46H 0EH Max. 5mV
P0130 47H 8EH Min. 5mV
P0133 48H 8EH Min. 0.002
Air fuel ratio (A/F) sensor 1 (Bank 2) P0151 4CH 8FH Min. 5mV
P0152 4DH 0FH Max. 5mV
P2A03 4EH 0FH Max. 0.002
P2A03 4FH 8FH Min. 0.002
P0153 50H 8FH Min. 0.002
P0150 51H 0FH Max. 5mV
P0150 52H 8FH Min. 5mV
P0153 53H 8FH Min. 0.002
Heated oxygen sensor 2 (Bank 1) P0139 19H 86H Min. 10mV/500 ms
P0137 1AH 86H Min. 10 mV
P0138 1BH 06H Max. 10 mV
P0138 1CH 06H Max. 10mV
Heated oxygen sensor 2 (Bank 2) P0159 21H 87H Min. 10 mV/500 ms
P0157 22H 87H Min. 10 mV
P0158 23H 07H Max. 10 mV
P0158 24H 07H Max. 10mV

TROUBLE DIAGNOSIS EC-755
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Revision: 2006 December 2006 FX35/FX45
2
P0031 P0032 P0051 P0052 Air fuel ratio (A/F) sensor 1 heater

P0037 P0038 P0057 P0058 Heated oxygen sensor 2 heater

P0075 P0081 Intake valve timing control solenoid valve

P0130 P0131 P0132 P0133 P0150 P0151 P0152 P0153 P2A00 P2A03 Air fuel ratio (A/F) sensor 1

P0137 P0138 P0139 P0157 P0158 P0159 Heated oxygen sensor 2

P0441 EVAP control system purge flow monitoring

P0443 P0444 P0445 EVAP canister purge volume control solenoid valve

P0447 P0448 EVAP canister vent control valve

P0451 P0452 P0453 EVAP control system pressure sensor

P0550 Power steering pressure sensor

P0603 ECM power supply

P0710 P0717 P0720 P0740 P0744 P0745 P1730 P1752 P1754 P1757 P1759 P1762 P1764 P1767 P1769 P1772
P1774 A/T related sensors, solenoid valves and switches

P1140 P1145 Intake valve timing control position sensor

P1217 Engine over temperature (OVERHEAT)

P1805 Brake switch

P2100 P2103 Throttle control motor relay

P2101 Electric throttle control function

P2118 Throttle control motor
3

P0011 P0021 Intake valve timing control

P0171 P0172 P0174 P0175 Fuel injection system function

P0300 - P0308 Misfire

P0420 P0430 Three way catalyst function

P0442 P0456 EVAP control system (SMALL LEAK, VERY SMALL LEAK)

P0455 EVAP control system (GROSS LEAK)

P0506 P0507 Idle speed control system

P1148 P1168 Closed loop control

P1211 TCS control unit

P1212 TCS communication line

P1564 ICC steering switch / ASCD steering switch

P1568 ICC command value

P1572 ICC brake switch / ASCD brake switch

P1574 ICC vehicle speed sensor / ASCD vehicle speed sensor

P1715 Turbine revolution sensor

P1800 VIAS control solenoid valve

P2119 Electric throttle control actuator
Priority Detected items (DTC)