Infiniti M45 (Y34). Manual - part 384

DTC P0133, P0153 HO2S1

EC-225

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DTC Confirmation Procedure

ABS002GX

CAUTION:

Always drive vehicle at a safe speed.

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.

TESTING CONDITION:

●

Always perform at a temperature above 

−

10

°

C (14

°

F).

●

Before performing the following procedure, confirm that battery voltage is more than 11V at idle.

 WITH CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Stop engine and wait at least 10 seconds.

3.

Turn ignition switch ON and select “HO2S1 (B1) P0133” or “HO2S1 (B2) P0153” of “HO2S1” in “DTC
WORK SUPPORT” mode with CONSULT-II.

4.

Touch “START”.

5.

Start engine and let it idle for at least 3 minutes.

NOTE:
Never raise engine speed above 3,000 rpm after this step. If
the engine speed limit is exceeded, return to step 5.

6.

When the following conditions are met, “TESTING” will be dis-
played on the CONSULT-II screen. Maintain the conditions con-
tinuously until “TESTING” changes to “COMPLETED”. (It will
take approximately 40 to 50 seconds.)

If “TESTING” is not displayed after 5 minutes, retry from
step 2.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0133
0133
(Bank 1)

Heated oxygen sensor 1 
circuit slow response

The response of the voltage signal from the 
sensor takes more than the specified time.

●

Harness or connectors
(The sensor circuit is open or shorted)

●

Heated oxygen sensor 1

●

Fuel pressure

●

Fuel injector

●

Intake air leaks

●

Exhaust gas leaks

●

PCV valve

●

Mass air flow sensor

P0153
0153
(Bank 2)

SEF338Z

ENG SPEED

1,350 - 2,400 rpm

VHCL SPEED SE

More than 80 km/h (50 MPH)

B/FUEL SCHDL

1.6 - 12.0 msec

Selector lever

Suitable position

SEF339Z

EC-226

DTC P0133, P0153 HO2S1

7.

Make sure that “OK” is displayed after touching “SELF-DIAG
RESULTS”. If “NG” is displayed, refer to 

EC-230, "Diagnostic

Procedure"

 .

Overall Function Check

ABS002GY

Use this procedure to check the overall function of the heated oxygen sensor 1 circuit. During this check, a 1st
trip DTC might not be confirmed.

 WITH GST

1.

Start engine and warm it up to normal operating temperature.

2.

Set voltmeter probes between ECM terminal 114 [HO2S1(B1) signal] or 115 [HO2S1(B2) signal] and
ground.

3.

Check the following with engine speed held at 2,000 rpm con-
stant under no load.

–

The voltage fluctuates between 0 to 0.3V and 0.6 to 1.0V more
than 5 times within 10 seconds.

4.

If NG, go to 

EC-230, "Diagnostic Procedure"

 .

SEF658Y

1 time:

0 - 0.3V 

→

 0.6 - 1.0V 

→

 0 - 0.3V

2 times:

0 - 0.3V 

→

 0.6 - 1.0V 

→

 0 - 0.3V 

→

 0.6 - 1.0V 

→

 0 - 0.3V

PBIB0063E

DTC P0133, P0153 HO2S1

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Wiring Diagram

ABS002GZ

BANK 1

TBWA0274E

EC-228

DTC P0133, P0153 HO2S1

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

114

L/R

Heated oxygen sensor 1 
(bank 1)

[Engine is running]

●

Warm-up condition

●

Engine speed: 2,000 rpm.

0 - Approximately 1.0V
(Periodically change)