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Nissan Note E12. Instruction - part 210

P0133 A/F SENSOR 1

EC-179

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0133 A/F SENSOR 1

DTC Logic

INFOID:0000000009022539

DTC DETECTION LOGIC

To judge the malfunction of A/F sensor 1, this diagnosis measures response time of the A/F signal computed

by ECM from the A/F sensor 1 signal. The time is compensated by engine operating (speed and load), fuel

feedback control constant, and the A/F sensor 1 temperature index. Judgment is based on whether the com-

pensated time (the A/F signal cycling time index) is inordinately long or not.

DTC CONFIRMATION PROCEDURE

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
Do you have CONSULT?

YES

>> GO TO 2.

>> GO TO 5.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT

1. Start engine and warm it up to normal operating temperature.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Restart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1minute under no

load.

4. Let engine idle for 1 minute.

5. Select “ENGINE” using CONSULT.

6. Select “A/F SEN1(B1) P1278/P1279” (for DTC P0133) of “A/F SEN1” in “DTC WORK SUPPORT” mode.

7. Touch “START”.
Is “COMPLETED” displayed on CONSULT screen?

YES

>> GO TO 3.

>> GO TO 4.

PERFORM DTC CONFIRMATION PROCEDURE-II

Touch “SELF-DIAG RESULT”.
Which is displayed on CONSULT screen?

>> INSPECTION END

>> Proceed to

EC-180, "Diagnosis Procedure"

PERFORM DTC CONFIRMATION PROCEDURE-II

1. After perform the following procedure, “TESTING” will be displayed on the CONSULT screen.

Increase the engine speed up to between 4,000 and 5,000 rpm and maintain that speed for 10 seconds.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible Cause

P0133

Air fuel ratio (A/F) sensor 1
circuit slow response

The response of the A/F signal computed
by ECM from A/F sensor 1 signal takes
more than the specified time.

• Harness or connectors

(The A/F sensor 1 circuit is open or shorted.)

• A/F sensor 1
• A/F sensor 1 heater
• Fuel pressure
• Fuel injector
• Intake air leaks
• Exhaust gas leaks
• PCV
• Mass air flow sensor

EC-180

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0133 A/F SENSOR 1

Fully release accelerator pedal and then let engine idle for about 10 seconds.

If “TESTING” is not displayed after 10 seconds, refer to

EC-129, "Component Function Check"

2. Wait for about 20 seconds at idle under the condition that “TESTING” is displayed on the CONSULT

screen.

3. Make sure that “TESTING” changes to “COMPLETED”.

If “TESTING” changed to “OUT OF CONDITION”, refer to

EC-129, "Component Function Check"

4. Touch “SELF-DIAG RESULT”.
Which is displayed on CONSULT screen?

>> INSPECTION END

>> Proceed to

EC-180, "Diagnosis Procedure"

CHECK AIR-FUEL RATIO SELF-LEARNING VALUE

With GST

1. Start engine and warm it up to normal operating temperature.

2. Select Service $01 with GST.

3. Calculate the total value of “Short term fuel trim” and “Long term fuel trim” indications.
Is the total percentage within

±15%?

YES

>> GO TO 7.

>> GO TO 6.

DETECT MALFUNCTIONING PART

Check the following.

• Intake air leaks

• Exhaust gas leaks

• Incorrect fuel pressure

• Lack of fuel

• Fuel injector

• Incorrect PCV hose connection

• PCV valve

• Mass air flow sensor

>> Repair or replace malfunctioning part.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Restart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1minute under no

load.

3. Let engine idle for 1 minute.

4. Increase the engine speed up to between 4,000 and 5,000 rpm and maintain that speed for 10 seconds.

5. Fully release accelerator pedal and then let engine idle for about 1 minute.

6. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-180, "Diagnosis Procedure"

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009022540

CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E15. Refer to Ground Inspection in

GI-44, "Circuit Inspection"

Is the inspection result normal?

YES

>> GO TO 2.

>> Repair or replace ground connection.

RETIGHTEN A/F SENSOR 1

Loosen and retighten the A/F sensor 1. Refer to

EM-31, "Exploded View"

>> GO TO 3.

P0133 A/F SENSOR 1

EC-181

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

CHECK EXHAUST GAS LEAK

1. Start engine and run it at idle.

2. Listen for an exhaust gas leak before three way catalyst 1.

Is exhaust gas leak detected?

YES

>> Repair or replace.

>> GO TO 4.

CHECK FOR INTAKE AIR LEAK

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

YES

>> Repair or replace.

>> GO TO 5.

CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE

1. Clear the mixture ratio self-learning value. Refer to

EC-117, "Work Procedure"

2. 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

>> Perform trouble diagnosis for DTC P0171 or P0172. Refer to

EC-201, "DTC Logic"

EC-205,

"DTC Logic"

>> GO TO 6.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

1. Disconnect A/F sensor 1 harness connector.

2. Turn ignition switch ON.

3. Check the voltage between A/F sensor 1 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 8.

>> GO TO 7.

DETECT MALFUNCTIONING PART

Check the following.

• IPDM E/R harness connector F42

• 20A fuse (No. 53)

• Harness for open or short between A/F sensor 1 and fuse

>> Repair or replace harness or connectors.

CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.

PBIB1216E

A/F sensor 1

Ground

Voltage

Connector

Terminal

F12

Ground

Battery voltage

EC-182

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0133 A/F SENSOR 1

4. Check the continuity between A/F sensor 1 harness connector and ground or ECM harness connector

and ground.

5. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 9.

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

CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER

Refer to

EC-150, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 10.

>> GO TO 12.

10.

CHECK MASS AIR FLOW SENSOR

Check both mass air flow sensor.

Refer to

EC-160, "Component Inspection"

Is the inspection result normal?

YES

>> GO TO 11.

>> Replace malfunctioning mass air flow sensor. Refer to

EM-26, "Exploded View"

11.

CHECK PCV VALVE

Refer to

EC-337, "Inspection"

Is the inspection result normal?

YES

>> GO TO 12.

>> Repair or replace PCV valve. Refer to

EM-48, "Exploded View"

12.

CHECK INTERMITTENT INCIDENT

Perform

GI-41, "Intermittent Incident"

Is the inspection result normal?

YES

>> Replace malfunctioning air fuel ratio (A/F) sensor 1. Refer to

EM-31, "Exploded View"

>> Repair or replace.

A/F sensor 1

ECM

Continuity

Connector

Terminal

Connector

Terminal

F12

F11

Existed

A/F sensor 1

Ground

Continuity

Connector

Terminal

F12

Ground

Not existed

ECM

Ground

Continuity

Connector

Terminal

F11

Ground

Not existed

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