2006 INFINITI M35 Factory Service Manual

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Page 2649 of 5621

INFINITI M35 2006 Factory Service Manual EC-1106
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DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
Revision: 2006 January2006 M35/M45
DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)PFP:23731
Component DescriptionNBS005GL
The camsha

Page 2650 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
EC-1107
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Revision: 2006 January2006 M35/M45
DTC Confirmation ProcedureNBS005GN
NOTE:
If DTC Confirmation Procedure

Page 2651 of 5621

INFINITI M35 2006 Factory Service Manual EC-1108
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DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
Revision: 2006 January2006 M35/M45
Wiring DiagramNBS005GO
TBWT1028E

Page 2652 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
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Specification data are reference values and are measured between each ter

Page 2653 of 5621

INFINITI M35 2006 Factory Service Manual EC-1110
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DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
Revision: 2006 January2006 M35/M45
2. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws

Page 2654 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
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5. CHECK CMP SENSOR (PHASE) GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ign

Page 2655 of 5621

INFINITI M35 2006 Factory Service Manual EC-1112
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DTC P0340 CAMSHAFT POSITION (CMP) SENSOR (PHASE)
Revision: 2006 January2006 M35/M45
Component InspectionNBS005GQ
CAMSHAFT POSITION SENSOR (PHASE)
1. Loosen the fixing bolt of the sens

Page 2656 of 5621

INFINITI M35 2006 Factory Service Manual DTC P0420, P0430 THREE WAY CATALYST FUNCTION
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DTC P0420, P0430 THREE WAY CATALYST FUNCTIONPFP:20905
On Board Diagnosis Logi

DTC P0420, P0430 THREE WAY CATALYST FUNCTION
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DTC P0420, P0430 THREE WAY CATALYST FUNCTIONPFP:20905
On Board Diagnosis LogicNBS005GS
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
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 A/F sensor 1 and heated oxygen sensor
2 approaches a specified limit value, the three way catalyst (mani-
fold) malfunction is diagnosed.
DTC Confirmation ProcedureNBS005GT
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.
WITH CONSULT-II
TESTING CONDITION:
Do not hold engine speed for more than the specified minutes below.
1. Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2. Start engine and warm it up to the normal operating tempera-
ture.
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 (158F).
7. Open engine hood.
PBIB2055E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0420
0420
(Bank 1)
Catalyst system effi-
ciency 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 P0430
0430
(Bank 2)
SEF189Y

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