Nissan Juke Service and Repair Manual : P0131 A/F sensor 1

DTC Logic

DTC DETECTION LOGIC

To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately low.

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.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 10.5 V at idle.

>> GO TO 2.

2.CHECK A/F SENSOR FUNCTION

1. Start engine and warm it up to normal operating temperature.With CONSULT-III


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

2. Select A/F SEN1 (B1) in DATA MONITOR mode of ENGINE using CONSULT-III.

3. Check A/F SEN1 (B1) indication.

Follow the procedure With CONSULT-III above.With GST


Follow the procedure With CONSULT-III above.

Is the indication constantly approx. 0 V? YES >> Proceed to EC-210, "Diagnosis Procedure".

NO >> GO TO 3.

3.PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT-III

1. Turn ignition switch OFF, wait at least 10 seconds and then restart engine.

2. Drive and accelerate vehicle to more than 40 km/h (25 MPH) within 20 seconds after restarting engine.

CAUTION:
Always drive vehicle at a safe speed

.

3. Maintain the following conditions for about 20 consecutive seconds.

NOTE:


NOTE:
Keep the accelerator pedal as steady as possible during the cruising.

If this procedure is not completed within 1 minute after restarting engine at step 1, return to step 1.

4. Check 1st trip DTC.

Follow the procedure With CONSULT-III above.With GST


Follow the procedure With CONSULT-III above.

Is 1st trip DTC detected? YES >> Proceed to EC-210, "Diagnosis Procedure".

NO >> INSPECTION END

Component Inspection

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

1. Turn ignition switch OFF.

2. Disconnect A/F sensor 1 harness connector.

3. Turn ignition switch ON.

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

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

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

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector.

4. Also check harness for short to ground.


4. Also check harness for short to ground.

Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.

NO >> Repair or replace error-detected parts.

3.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT

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.

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


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.


5. Also check harness for short to power.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair or replace error-detected parts.

4.CHECK INTERMITTENT INCIDENT

Perform GI-42, "Intermittent Incident".

Is the inspection result normal? YES >> GO TO 5.

NO >> Repair or replace error-detected parts.

5.REPLACE AIR FUEL RATIO (A/F) SENSOR 1

Replace air fuel ratio (A/F) sensor 1. Refer to EM-38, "Exploded View".

CAUTION:
Discard any 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 sensor, clean exhaust system threads using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial service tool).

>> INSPECTION END

    P0130 A/F sensor 1
    DTC Logic DTC DETECTION LOGIC To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal fluctuates according to fuel feedback control. DTC ...

    P0132 A/F sensor 1
    DTC Logic DTC DETECTION LOGIC To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1 signal is not inordinately high. DTC CONFIRMATION PROCEDU ...

    Other materials:

    HR16DE : Inspection and Adjust
    INSPECTION Magnetic Switch Check Before starting to check, disconnect the battery cable from the negative terminal. Disconnect M terminal of starter motor. 1. Continuity test [between S terminal (A) and switch body] B : B terminal C : M terminal Replace magnetic switch if co ...

    Basic inspection
    DIAGNOSIS AND REPAIR WORK FLOW Work Flow OVERALL SEQUENCE DETAILED FLOW 1.GET INFORMATION FOR SYMPTOM 1. Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred). 2. Check operation condition of the function th ...

    Front drive shaft
    Exploded View LEFT SIDE 1. Circular clip 2. Dust shield 3. Housing assembly 4. Boot band 5. Boot 6. Damper band 7. Dynamic damper 8. Circular clip 9. Joint sub-assembly : Wheel side : Fill NISSAN Genuine grease or equivalent. : Always replace after every disassembly. RIGHT ...