Nissan Almera Tino V10 (2001 year). Manual - part 73

SEF463R

SEF288D

Component Description

NLEC1438

The heated oxygen sensor 1 (front) is placed into the exhaust
manifold. It detects the amount of oxygen in the exhaust gas com-
pared to the outside air. The heated oxygen sensor 1 (front) 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 (front) 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 1V to 0V.

CONSULT-II Reference Value in Data Monitor
Mode

NLEC1439

Specification data are reference values.

MONITOR ITEM

CONDITION

SPECIFICATION

HO2S1 (B1)

Engine: After warming up

Maintaining engine speed at 2,000
rpm

0 - 0.3V

←→

Approx. 0.6 - 1.0V

HO2S1 MNTR
(B1)

LEAN

←→

RICH

Changes more than 5 times during
10 seconds.

ECM Terminals and Reference Value

NLEC1440

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.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Heated oxygen sensor
1 (front)

[Engine is running]

After warming up to normal operating temperature
and engine speed is 2,000 rpm

0 - Approximately 1.0V

SEF008W

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Component Description

EC-729

SEF010V

On Board Diagnosis Logic

NLEC1441

To judge the malfunction of heated oxygen sensor 1 (front), this
diagnosis measures response time of heated oxygen sensor 1
(front) signal. The time is compensated by engine operating (speed
and load), fuel feedback control constant, and heated oxygen sen-
sor 1 (front) temperature index. Judgment is based on whether the
compensated time [heated oxygen sensor 1 (front) cycling time
index] is inordinately long or not.

DTC No.

Malfunction is detected when ...

Check Items (Possible Cause)

P0133

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 (front)

Heated oxygen sensor 1 heater (front)

Fuel pressure

Injectors

Intake air leaks

Exhaust gas leaks

PCV

Mass air flow sensor

SEF831Y

SEF832Y

SEF658Y

DTC Confirmation Procedure

NLEC1442

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

Start engine and warm it up to normal operating temperature.

Stop engine and wait at least 10 seconds.

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

Touch “START”.

Start engine and let it idle for at least 3.5 minutes.

NOTE:
Never raise engine speed above 3,200 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
continuously until “TESTING” changes to “COMPLETED”. (It
will take approximately 50 seconds.)

ENG SPEED

1,400 - 3,200 rpm

Vehicle speed

80 - 120 km/h (50 - 75 MPH)

B/FUEL SCHDL

3.5 - 14.0 msec

Selector lever

Suitable position

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

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

On Board Diagnosis Logic

EC-730

Make sure that “OK” is displayed after touching “SELF-DIAG
RESULTS”.

“NG”

displayed,

refer

“Diagnostic

Procedure”, EC-734.

SEF011X

Overall Function Check

NLEC1443

Use this procedure to check the overall function of the heated oxy-
gen sensor 1 (front) circuit. During this check, a 1st trip DTC might
not be confirmed.

With GST

Start engine and warm it up to normal operating temperature.

Set voltmeter probes between ECM terminal 62 (HO2S1 sig-
nal) and engine ground.

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

Malfunction indicator goes on more than five times within 10
seconds in Diagnostic Test Mode II [HEATED OXYGEN SEN-
SOR 1 MONITOR (FRONT).]

If NG, go to “Diagnostic Procedure”, EC-734.

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

DTC Confirmation Procedure (Cont’d)

EC-731

Wiring Diagram

NLEC1444

MODELS WITH ECM IN ENGINE COMPARTMENT

NLEC1444S03

YEC691

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Wiring Diagram

EC-732

MODELS WITH ECM IN CABIN

NLEC1444S04

YEC916

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Wiring Diagram (Cont’d)

EC-733

Diagnostic Procedure

NLEC1445

RETIGHTEN GROUND SCREWS

1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.

SEF202X

GO TO 2.

RETIGHTEN HEATED OXYGEN SENSOR 1 (FRONT)

Loosen and retighten heated oxygen sensor 1 (front).

Tightening torque:

40 - 60 N·m (4.1 - 6.1 kg-m, 30 - 44 ft-lb)

GO TO 3.

CHECK EXHAUST AIR LEAK

1. Start engine and run it at idle.
2. Listen for an exhaust air leak before three way catalyst.

SEF099P

OK or NG

GO TO 4.

Repair or replace.

CHECK FOR INTAKE AIR LEAK

Listen for an intake air leak after the mass air flow sensor.

OK or NG

GO TO 5.

Repair or replace.

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Diagnostic Procedure

EC-734

CLEAR THE SELF-LEARNING DATA

With CONSULT-II

1. Start engine and warm it up to normal operating temperature.
2. Select “SELF-LEARN CONTROL” in “WORK SUPPORT” mode with CONSULT-II.
3. Clear the self-learning control coefficient by touching “CLEAR”.

SEF215Z

4. Run engine for at least 10 minutes at idle speed.

Is the 1st trip DTC P0171 or P0172 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 3 seconds at idle speed.

SEF772Z

4. Stop engine and reconnect mass air flow sensor harness connector.
5. Make sure 1st trip DTC P0100 is displayed.
6. Erase the 1st trip DTC memory. Refer to “How to Erase Emission-related Diagnostic Information”, EC-594.
7. Make sure DTC P0000 is displayed.
8. Run engine for at least 10 minutes at idle speed.

Is the 1st trip DTC P0171 or P0172 detected? Is it difficult to start engine?

Yes or No

Yes

Perform trouble diagnosis for DTC P0171, P0172. Refer to EC-792, 800.

GO TO 6.

CHECK INPUT SIGNAL CIRCUIT

1. Disconnect heated oxygen sensor 1 (front) harness connector and ECM harness connector.
2. Check harness continuity between ECM terminal 62 and HO2S1 terminal 2.

Refer to wiring diagram.

Continuity should exist.

3. Check harness continuity between ECM terminal 62 (or HO2S1 terminal 2) and ground.

Continuity should not exist.

4. Also check harness for short to power.

OK or NG

GO TO 7.

Repair open circuit or short to ground or short to power in harness or connectors.

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Diagnostic Procedure (Cont’d)

EC-735

CHECK HEATED OXYGEN SENSOR 1 HEATER (FRONT)

Refer to “Component Inspection”, EC-751.

OK or NG

GO TO 8.

Replace heated oxygen sensor 1 (front).

CHECK HEATED OXYGEN SENSOR 1 (FRONT)

Refer to “Component Inspection”, EC-737.

OK or NG

GO TO 9.

Replace heated oxygen sensor 1 (front).

CHECK MASS AIR FLOW SENSOR

Refer to “Component Inspection”, EC-686.

OK or NG

GO TO 10.

Replace mass air flow sensor.

CHECK PCV VALVE

Refer to “Positive Crankcase Ventilation”, EC-576.

OK or NG

GO TO 11.

Repair or replace PCV valve.

CHECK INTERMITTENT INCIDENT

Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-670.

INSPECTION END

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Diagnostic Procedure (Cont’d)

EC-736

SEF646Y

SEF217YA

Component Inspection

NLEC1446

HEATED OXYGEN SENSOR 1 (FRONT)

NLEC1446S01

With CONSULT-II

Start engine and warm it up to normal operating temperature.

Select “MANU TRIG” in “DATA MONITOR” mode, and select
“HO2S1 (B1)” and “HO2S1 MNTR (B1)”.

Hold engine speed at 2,000 rpm under no load during the fol-
lowing steps.

Touch “RECORD” on CONSULT-II screen.

Check the following.

“HO2S1 MNTR (B1)” in “DATA MONITOR” mode changes from
“RICH” to “LEAN” to “RICH” five times in 10 seconds.
5 times (cycles) are counted as shown below:
R = “HO2S1 MNTR (B1)”, “RICH”
L = “HO2S1 MNTR (B1)”, “LEAN”

“HO2S1 (B1)” voltage goes above 0.6V at least once.

“HO2S1 (B1)” voltage goes below 0.3V at least once.

“HO2S1 (B1)” 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 sys-
tem threads using Oxygen Sensor Thread Cleaner tool
and approved anti-seize lubricant.

SEF648Y

SEF011X

Without CONSULT-II

Start engine and warm it up to normal operating temperature.

Set voltmeter probes between ECM terminal 62 (HO2S1 sig-
nal) and engine ground.

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 five times within 10 seconds.
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

→

- 0.3V

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Component Inspection

EC-737

The maximum voltage is over 0.6V at least one time.

The minimum voltage is below 0.3V at least one time.

The 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 sys-
tem threads using Oxygen Sensor Thread Cleaner tool
and approved anti-seize lubricant.

DTC P0133 HEATED OXYGEN SENSOR 1 (FRONT)

(RESPONSE MONITORING)

SR20DE

Component Inspection (Cont’d)

EC-738

SEF463R

SEF288D

Component Description

NLEC1447

CONSULT-II Reference Value in Data Monitor
Mode

NLEC1448

Specification data are reference values.

MONITOR ITEM

CONDITION

SPECIFICATION

HO2S1 (B1)

Engine: After warming up

Maintaining engine speed at 2,000
rpm

0 - 0.3V

←→

Approx. 0.6 - 1.0V

HO2S1 MNTR
(B1)

LEAN

←→

RICH

Changes more than 5 times during
10 seconds.

ECM Terminals and Reference Value

NLEC1449

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.

TERMI-

NAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

Heated oxygen sensor
1 (front)

[Engine is running]

After warming up to normal operating temperature
and engine speed is 2,000 rpm

0 - Approximately 1.0V

SEF008W

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)

(HIGH VOLTAGE)

SR20DE

Component Description

EC-739

SEF301U

On Board Diagnosis Logic

NLEC1450

To judge the malfunction, the diagnosis checks that the heated
oxygen sensor 1 (front) output is not inordinately high.

DTC No.

Malfunction is detected when ...

Check Items (Possible Cause)

P0134

An excessively high voltage from the sensor is sent to
ECM.

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

Heated oxygen sensor 1 (front)

SEF174Y

DTC Confirmation Procedure

NLEC1451

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

Start engine and warm it up to normal operating temperature.

Turn ignition switch “OFF” and wait at least 10 seconds.

Turn ignition switch “ON”.

Select “DATA MONITOR” mode with CONSULT-II.

Restart engine and let it idle for 2 minutes.

If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-743.

With GST

Start engine and warm it up to normal operating temperature.

Turn ignition switch “OFF” and wait at least 10 seconds.

Restart engine and let it idle for 2 minutes.

Turn ignition switch “OFF” and wait at least 10 seconds.

Restart engine and let it idle for 2 minutes.

Select “MODE 3” with GST.

If DTC is detected, go to “Diagnostic Procedure”, EC-743.

When using GST, “DTC Confirmation Procedure” should
be performed twice as much as when using CONSULT-II
because GST cannot display MODE 7 (1st trip DTC) con-
cerning this diagnosis. Therefore, using CONSULT-II is
recommended.

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)

(HIGH VOLTAGE)

SR20DE

On Board Diagnosis Logic

EC-740

Wiring Diagram

NLEC1452

MODELS WITH ECM IN ENGINE COMPARTMENT

NLEC1452S03

YEC691

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)

(HIGH VOLTAGE)

SR20DE

Wiring Diagram

EC-741

MODELS WITH ECM IN CABIN

NLEC1452S04

YEC916

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)

(HIGH VOLTAGE)

SR20DE

Wiring Diagram (Cont’d)

EC-742

Diagnostic Procedure

NLEC1453

RETIGHTEN HEATED OXYGEN SENSOR 1 (FRONT)

Loosen and retighten heated oxygen sensor 1 (front).

Tightening torque:

40 - 60 N·m (4.1 - 6.1 kg-m, 30 - 44 ft-lb)

GO TO 2.

CHECK INPUT SIGNAL CIRCUIT

1. Disconnect heated oxygen sensor 1 (front) harness connector and ECM harness connector.

SEF774Z

2. Check harness continuity between ECM terminal 62 and HO2S1 terminal 2.

Refer to wiring diagram.

Continuity should exist.

3. Check harness continuity between ECM terminal 62 (or HO2S1 terminal 2) and ground.

Continuity should not exist.

4. Also check harness for short to power.

OK or NG

GO TO 3.

Repair open circuit or short to ground or short to power in harness or connectors.

CHECK HARNESS CONNECTOR

Check heated oxygen sensor 1 (front) harness connector for water.
Water should not exist.

OK or NG

GO TO 4.

Repair or replace harness connector.

CHECK HEATED OXYGEN SENSOR 1 (FRONT)

Refer to “Component Inspection”, EC-744.

OK or NG

GO TO 5.

Replace heated oxygen sensor 1 (front).

CHECK INTERMITTENT INCIDENT

Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-670.

INSPECTION END

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)

(HIGH VOLTAGE)

SR20DE

Diagnostic Procedure

EC-743

SEF646Y

SEF217YA

Component Inspection

NLEC1454

HEATED OXYGEN SENSOR 1 (FRONT)

NLEC1454S01

With CONSULT-II

Start engine and warm it up to normal operating temperature.

Select “MANU TRIG” in “DATA MONITOR” mode, and select
“HO2S1 (B1)” and “HO2S1 MNTR (B1)”.

Hold engine speed at 2,000 rpm under no load during the fol-
lowing steps.

Touch “RECORD” on CONSULT-II screen.

Check the following.

“HO2S1 (B1)” voltage goes above 0.6V at least once.

“HO2S1 (B1)” voltage goes below 0.3V at least once.

“HO2S1 (B1)” 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 sys-
tem threads using Oxygen Sensor Thread Cleaner tool
and approved anti-seize lubricant.

SEF648Y

SEF011X

Without CONSULT-II

Start engine and warm it up to normal operating temperature.

Set voltmeter probes between ECM terminal 62 (HO2S1 sig-
nal) and engine ground.

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 five times within 10 seconds.
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

→

- 0.3V

DTC P0134 HEATED OXYGEN SENSOR 1 (FRONT)

(HIGH VOLTAGE)

SR20DE

Component Inspection

EC-744

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