Page 2345 of 4731
![INFINITI FX35 2005 Service Manual EC-952
[VK45DE]
DTC P0133, P0153 HO2S1
Revision: 2005 July 2005 FX
5. CLEAR THE SELF-LEARNING DATA
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “SEL INFINITI FX35 2005 Service Manual EC-952
[VK45DE]
DTC P0133, P0153 HO2S1
Revision: 2005 July 2005 FX
5. CLEAR THE SELF-LEARNING DATA
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “SEL](/manual-img/42/57020/w960_57020-2344.png)
EC-952
[VK45DE]
DTC P0133, P0153 HO2S1
Revision: 2005 July 2005 FX
5. CLEAR THE SELF-LEARNING DATA
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARNING CONT” in “WORK SUPPORT” mode with CONSULT-II.
3. Clear the self-learning control coefficient by touching “CLEAR”.
4. Run engine for at least 10 minutes at idle speed. Is the 1st trip DTC P0171, P0172, P0174 or P0175 detected?
Is it difficult to start engine?
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF.
3. Disconnect mass air flow sensor harness connector, and restart and run engine for at least 5 seconds at idle speed.
4. Stop engine and reconnect mass air flow sensor harness con- nector.
5. Make sure DTC P0102 is displayed.
6. Erase the DTC memory. Refer to EC-758, "
HOW TO ERASE
EMISSION-RELATED DIAGNOSTIC INFORMATION" .
7. Make sure DTC P0000 is displayed.
8. Run engine for at least 10 minutes at idle speed. Is the 1st trip DTC P0171, P0172, P0174 or P0175 detected?
Is it difficult to start engine?
Ye s o r N o
Yes >> Perform trouble diagnosis for DTC P0171, P0174 or P0172, P0175 (Refer to EC-986 or EC-995
).
No >> GO TO 6.
SEF968Y
PBIB1502E
Page 2346 of 4731
![INFINITI FX35 2005 Service Manual DTC P0133, P0153 HO2S1 EC-953
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
6. CHECK HO2S1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect INFINITI FX35 2005 Service Manual DTC P0133, P0153 HO2S1 EC-953
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
6. CHECK HO2S1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect](/manual-img/42/57020/w960_57020-2345.png)
DTC P0133, P0153 HO2S1 EC-953
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
6. CHECK HO2S1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 1 harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between HO2S1 terminal 4 and ECM terminal 78. Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
7. CHECK HO2S1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal and HO2S1 terminal as follows. Refer to Wiring Diagram.
2. Check harness continuity between the following terminals and ground. Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist.
PBIB1521E
DTC
Te r m i n a l s
Bank
ECM Sensor
P0133 16 1 1
P0153 35 1 2
Continuity should exist.
DTC Te r m i n a l s
Bank
ECM Sensor
P0133 16 1 1
P0153 35 1 2
Continuity should not exist.
Page 2347 of 4731
![INFINITI FX35 2005 Service Manual EC-954
[VK45DE]
DTC P0133, P0153 HO2S1
Revision: 2005 July 2005 FX
8. CHECK MASS AIR FLOW SENSOR
Refer to EC-900, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass air flow sen INFINITI FX35 2005 Service Manual EC-954
[VK45DE]
DTC P0133, P0153 HO2S1
Revision: 2005 July 2005 FX
8. CHECK MASS AIR FLOW SENSOR
Refer to EC-900, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass air flow sen](/manual-img/42/57020/w960_57020-2346.png)
EC-954
[VK45DE]
DTC P0133, P0153 HO2S1
Revision: 2005 July 2005 FX
8. CHECK MASS AIR FLOW SENSOR
Refer to EC-900, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass air flow sensor.
9. CHECK PCV VALVE
Refer to EC-742, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace PCV valve.
10. CHECK HEATED OXYGEN SENSOR 1
Refer to EC-954, "
Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> Replace malfunctioning heated oxygen sensor 1.
11 . CHECK INTERMITTENT INCIDENT
Refer to EC-854, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
Component InspectionABS007LB
HEATED OXYGEN SENSOR 1
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “MANU TRIG” and adjust “TRIGGER POINT” to 100% in “DATA MONITOR” mode with CONSULT- II.
3. Select “HO2S1 (B1)/(B2)” and “HO2S1 MNTR (B1)/(B2)”.
4. Hold engine speed at 2,000 rpm under no load during the following steps.
5. Touch “RECORD” on CONSULT-II screen.
SEF646Y
Page 2348 of 4731
![INFINITI FX35 2005 Service Manual DTC P0133, P0153 HO2S1 EC-955
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
6. Check the following.
“HO2S1 MNTR (B1)/(B2)” in “DATA MONITOR” mode
changes from INFINITI FX35 2005 Service Manual DTC P0133, P0153 HO2S1 EC-955
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
6. Check the following.
“HO2S1 MNTR (B1)/(B2)” in “DATA MONITOR” mode
changes from](/manual-img/42/57020/w960_57020-2347.png)
DTC P0133, P0153 HO2S1 EC-955
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
6. Check the following.
“HO2S1 MNTR (B1)/(B2)” in “DATA MONITOR” mode
changes from “RICH” to “LEAN” to “RICH” more than 5 times
in 10 seconds.
5 times (cycles) are counted as shown at right.
“HO2S1 (B1)/(B2)” voltage goes above 0.6V at least once.
“HO2S1 (B1)/(B2)” voltage goes below 0.3V at least once.
“HO2S1 (B1)/(B2)” voltage never exceeds 1.0V.
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
Without CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Set voltmeter probes between ECM terminal 16 [HO2S1 (B1) signal] or 35 [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.
The maximum voltage is over 0.6V at least 1 time.
The minimum voltage is below 0.3V at least 1 time.
The voltage never exceeds 1.0V.
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
CAUTION:
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
Removal and InstallationABS007LC
HEATED OXYGEN SENSOR 1
Refer to EM-182, "EXHAUST MANIFOLD AND THREE WAY CATALYST" .
SEF647Y
SEF648Y
PBIB1528E
Page 2349 of 4731
![INFINITI FX35 2005 Service Manual EC-956
[VK45DE]
DTC P0134, P0154 HO2S1
Revision: 2005 July 2005 FX
DTC P0134, P0154 HO2S1PFP:22690
Component DescriptionABS007LD
The heated oxygen sensor 1 is placed into the exhaust manifold. It
det INFINITI FX35 2005 Service Manual EC-956
[VK45DE]
DTC P0134, P0154 HO2S1
Revision: 2005 July 2005 FX
DTC P0134, P0154 HO2S1PFP:22690
Component DescriptionABS007LD
The heated oxygen sensor 1 is placed into the exhaust manifold. It
det](/manual-img/42/57020/w960_57020-2348.png)
EC-956
[VK45DE]
DTC P0134, P0154 HO2S1
Revision: 2005 July 2005 FX
DTC P0134, P0154 HO2S1PFP:22690
Component DescriptionABS007LD
The heated oxygen sensor 1 is placed into the exhaust manifold. It
detects the amount of oxygen in the exhaust gas compared to the
outside air. The heated oxygen sensor 1 has a closed-end tube
made of ceramic zirconia. The zirconia generates voltage from
approximately 1V in richer conditions to 0V in leaner conditions. The
heated oxygen sensor 1 signal is sent to the ECM. The ECM adjusts
the injection pulse duration to achieve the ideal air-fuel ratio. The
ideal air-fuel ratio occurs near the radical change from 1 to 0V.
CONSULT-II Reference Value in Data Monitor ModeABS007LE
Specification data are reference values.
On Board Diagnosis LogicABS007LF
Under the condition in which the heated oxygen sensor 1 signal is
not input, the ECM circuits will read a continuous approximately
0.3V. Therefore, for this diagnosis, the time that output voltage is
within 200 to 400 mV range is monitored, and the diagnosis checks
that this time is not inordinately long.
SEF463R
SEF288D
MONITOR ITEM CONDITION SPECIFICATION
HO2S1 (B1)
HO2S1 (B2)
Engine: After warming up Maintaining engine speed at 2,000 rpm 0 - 0.3V
←→ Approx. 0.6 -
1.0V
HO2S1 MNTR (B1)
HO2S1 MNTR (B2) LEAN
←→ RICH
Changes more than 5 times
during 10 seconds.
SEF237U
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0134
0134
(Bank 1) Heated oxygen sensor
1 circuit no activity
detected The voltage from the sensor is constantly
approx. 0.3V.
Harness or connectors
(The sensor circuit is open or shorted)
Heated oxygen sensor 1
P0154
0154
(Bank 2)
Page 2350 of 4731
![INFINITI FX35 2005 Service Manual DTC P0134, P0154 HO2S1 EC-957
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
DTC Confirmation ProcedureABS007LG
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If INFINITI FX35 2005 Service Manual DTC P0134, P0154 HO2S1 EC-957
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
DTC Confirmation ProcedureABS007LG
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If](/manual-img/42/57020/w960_57020-2349.png)
DTC P0134, P0154 HO2S1 EC-957
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
DTC Confirmation ProcedureABS007LG
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:
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. Select “HO2S1 (B1) P0134” or “HO2S1 (B2) P0154” of “HO2S1” in “DTC WORK SUPPORT” mode with CONSULT-II.
3. Touch “START”.
4. Let it idle for at least 3 minutes. NOTE:
Do not raise engine speed above 3,000 rpm after this step. If
the engine speed limit is exceeded, return to step 4.
5. 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 10 to 60 seconds.)
If “TESTING” is not displayed after 5 minutes, retry from
step 2.
6. Make sure that “OK” is displayed after touching “SELF-DIAG RESULTS”. If “NG” is displayed, refer to EC-962, "
Diagnostic
Procedure" .
PBIB0544E
ENG SPEED 1,000 - 2,300 rpm
Vehicle speed More than 64 km/h (40 MPH)
B/FUEL SCHDL 1.5 - 15.0 msec
Selector lever Suitable position
PBIB0545E
SEC750C
Page 2351 of 4731
EC-958
[VK45DE]
DTC P0134, P0154 HO2S1
Revision: 2005 July 2005 FX
Overall Function CheckABS007LH
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 16 [HO2S1 (B1) signal] or 35 [HO2S1 (B2) signal] and ground.
3. Check the following with engine speed held at 2,000 rpm con- stant under no load.
The voltage does not remain in the range of 0.2 to 0.4V.
4. If NG, go to EC-962, "
Diagnostic Procedure" .
PBIB1528E
Page 2352 of 4731
DTC P0134, P0154 HO2S1 EC-959
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2005 July 2005 FX
Wiring DiagramABS007LI
BANK 1
TBWM0228E