Nissan Versa

 Sedan Service Manual

Engine » Engine control system (EC) » P0130 A/F sensor 1
DTC Logic

DTC DETECTION LOGIC

To judge malfunctions, 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 No.	Trouble diagnosis name	DTC detecting condition	Possible cause
P0130	Air fuel ratio (A/F) sensor 1 circuit	The A/F signal computed by ECM from the A/F sensor 1 signal is constantly approx. 2.2 V.	Harness or connectors (The A/F sensor 1 circuit is open or shorted.) A/F sensor 1

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 11 V at idle.

Do you have CONSULT?

YES >> GO TO 2.

NO >> GO TO 6.

2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION

1. Start engine and warm it up to normal operating temperature.
2. Select "ENGINE" using CONSULT.
3. Select "A/F SEN1 (B1)" in "DATA MONITOR" mode.
4. Check "A/F SEN1 (B1)" indication.

Does the indication fluctuate around 2.2 V?

YES >> GO TO 3.

NO >> Go to EC, "Diagnosis Procedure".

3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION I

1. Select "ENGINE" using CONSULT.
2. Select "A/F SEN1 (B1) P1276" (for DTC P0130) of "A/F SEN1" in "DTC WORK SUPPORT" mode.
3. Touch "START".
4. When the following conditions are met, "TESTING" will be displayed on the CONSULT screen.

If "TESTING" is not displayed after 20 seconds, retry from step 2.

CAUTION: Always drive vehicle at a safe speed.

Is "TESTING" displayed on CONSULT screen?

YES >> GO TO 4.

NO >> Check A/F sensor 1 function again. GO TO 2.

4.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION II

Release accelerator pedal fully.

NOTE: Never apply brake when releasing the accelerator pedal.

Which does "TESTING" change to?

COMPLETED>>GO TO 5.

OUT OF CONDITION>>Retry DTC CONFIRMATION PROCEDURE. GO TO 3.

5.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION III

Touch "SELFDIAG RESULT".

Which is displayed on CONSULT screen?

OK >> INSPECTION END

NG >> Go to EC, "Diagnosis Procedure".

6.PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION

Perform component function check. Refer to EC, "Component Function Check".

NOTE: Use component function check to check the overall function of the A/F sensor 1 circuit. During this check, a 1st trip DTC might not be confirmed.

Is the inspection result normal?

YES >> INSPECTION END

NO >> Go to EC, "Diagnosis Procedure".

DTC Logic

Component Function Check

Diagnosis Procedure