Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSNISSAN-DATSUN2012SENTRA SE-RREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - DTCS U0101 TO P0159 (QR25DE)DTC P0132, P0152: A/F SENSOR 1DTC CONFIRMATION PROCEDURE

2012 Nissan-Datsun Sentra SE-R

DTC Confirmation Procedure

2012 Nissan-Datsun Sentra SE-RSECTION DTC Confirmation Procedure

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 10.5 V at idle .

WITH CONSULT

Start engine and warm it up to normal operating temperature.
Select "A/F SEN1 (B1)" or "A/F SEN 1 (B2)" in "DATA MONITOR" mode with CONSULT.
Check "A/F SEN1 (B1)" or "A/F SEN 1 (B2)" indication.
If the indication is constantly approx. 5 V, go to "DIAGNOSIS PROCEDURE ".

If the indication is not constantly approx. 5 V, go to next step.
Turn ignition switch OFF, wait at least 10 seconds and then restart engine.
Drive and accelerate vehicle to more than 40 km/h (25 MPH) within 20 seconds after restarting engine.

Maintain the following conditions for approximately 20 consecutive seconds.

ENG SPEED	1, 000 - 3, 200 rpm
VHCL SPEED SE	More than 40 km/h (25 MPH)
B/FUEL SCHDL	1.5 - 9.0 msec
Selector lever	Suitable position

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 4, return to step 4.

Check 1st trip DTC.
If 1st trip DTC is displayed, go to "DIAGNOSIS PROCEDURE ".
WITH GST

Follow the procedure "WITH CONSULT" above.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.