2007 INFINITI M35 Factory Service Manual

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Page 2513 of 4647

INFINITI M35 2007 Factory Service Manual EC-984
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DTC P0133, P0153 A/F SENSOR 1
Revision: 2007 April2007 M35/M45
6. CHECK A/F SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect A/F sensor 1 harness connector.
2. Turn ignition switch ON.
3. C

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INFINITI M35 2007 Factory Service Manual DTC P0133, P0153 A/F SENSOR 1
EC-985
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Revision: 2007 April2007 M35/M45
8. CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. D

Page 2515 of 4647

INFINITI M35 2007 Factory Service Manual EC-986
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DTC P0133, P0153 A/F SENSOR 1
Revision: 2007 April2007 M35/M45
11 . CHECK PCV VALVE
Refer to EC-753, "
Component Inspection" .
OK or NG
OK >> GO TO 12.
NG >> Repair or replace PCV val

Page 2516 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0137, P0157 HO2S2
EC-987
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Revision: 2007 April2007 M35/M45
DTC P0137, P0157 HO2S2PFP:226A0
Component DescriptionNBS005EI
The heated oxygen sensor 2, after three

Page 2517 of 4647

INFINITI M35 2007 Factory Service Manual EC-988
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DTC P0137, P0157 HO2S2
Revision: 2007 April2007 M35/M45
DTC Confirmation ProcedureNBS005EL
NOTE:
If DTC confirmation Procedure has been previously conducted, always turn ignition switc

EC-988
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DTC P0137, P0157 HO2S2
Revision: 2007 April2007 M35/M45
DTC Confirmation ProcedureNBS005EL
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:
For better results, perform “DTC WORK SUPPORT” at a temperature of 0 to 30 °C (32 to 86 °F).
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 (158°F).
7. Open engine hood.
8. Select “HO2S2 (B1) P1147” (for DTC P0137) or “HO2S2 (B2) P1167” (for DTC P0157) of “HO2S2” in
“DTC WORK SUPPORT” mode with CONSULT-II.
9. Start engine and following the instruction of CONSULT-II.
NOTE:
It will take at most 10 minutes until “COMPLETED” is displayed.
10. Make sure that “OK” is displayed after touching “SELF-DIAG RESULTS”.
If “NG” is displayed, refer to EC-993, "
Diagnostic Procedure" .
If “CAN NOT BE DIAGNOSED” is displayed, perform the following.
a. Turn ignition switch OFF and leave the vehicle in a cool place (soak the vehicle).
b. Return to step 1.
Overall Function CheckNBS005EM
Use this procedure to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st
trip DTC might not be confirmed.
WITH GST
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. Set voltmeter probes between ECM terminal 55 [HO2S2 (B1) signal] or 74 [HO2S2 (B2) signal] and
ground.
SEF174Y
PBIB2373E

Page 2518 of 4647

INFINITI M35 2007 Factory Service Manual DTC P0137, P0157 HO2S2
EC-989
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Revision: 2007 April2007 M35/M45
6. Check the voltage when revving up to 4,000 rpm under no load
at least 10 times.
(Depress and releas

Page 2519 of 4647

INFINITI M35 2007 Factory Service Manual EC-990
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DTC P0137, P0157 HO2S2
Revision: 2007 April2007 M35/M45
Wiring DiagramNBS005EN
BANK 1
TBWT1020E

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INFINITI M35 2007 Factory Service Manual DTC P0137, P0157 HO2S2
EC-991
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Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do

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