Nissan Sentra (B17, 2013-2019) Error Codes (PDF)

Nissan Sentra (B17, 2013-2019) Diagnostics and Fault Codes is a guide to recognizing and troubleshooting errors that occur in the vehicle's system. It details common OBD-II error codes such as engine, ABS, transmission, and emission control system errors. Includes instructions for diagnosing with a scanner, code interpretation, and troubleshooting tips. This guide helps car owners and mechanics quickly find and fix problems, keeping the vehicle in good working order.

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1. P0171 - Fuel Mixture Too Lean (Bank 1)

Description: This code means there is too little fuel or too much air in the system.

Causes: Clogged injectors, faulty mass air flow (MAF) sensor, vacuum leaks.

Solution: Check and clean the MAF sensor, diagnose fuel injectors, inspect vacuum lines for leaks.

2. P0420 - Catalyst Efficiency Low (Bank 1)

Description: This code indicates a problem with the catalytic converter, which is not reducing emissions effectively.

Causes: Worn catalytic converter, faulty oxygen sensor (O2).

Solution: Check and replace the oxygen sensors. If the problem persists, the catalytic converter may need to be replaced.

3. P0300 - Multiple Cylinder Misfire

Description: Indicates that the ignition system is having difficulty and misfires are occurring in multiple cylinders.

Causes: Defective spark plugs, ignition coils, or injectors.

Solution: Check and replace spark plugs and ignition coils, clean or replace injectors.

4. P0456 - EVAP Minor Leak

Description: This code indicates a leak in the EVAP system.

Causes: Loose fuel cap, leaking EVAP hoses, or faulty valve.

Solution: Check fuel cap for leaks, inspect EVAP hoses and valves.

5. P0340 - Camshaft Position Sensor Malfunction

Description: This code indicates a problem with the camshaft position sensor signal.

Causes: Defective camshaft position sensor, damaged wiring.

Solution: Check and replace sensor if necessary, inspect wiring for damage.

6. P0113 — Intake Air Temperature (IAT) Sensor High Input

Description: Indicates that the IAT sensor signal is too high.

Causes: Defective IAT sensor or its connector, short in the wiring.

Solution: Check the connectors and wiring of the sensor, replace the sensor if necessary.

7. P0746 — Transmission Pressure Solenoid Malfunction

Description: Problem with the solenoid valve that controls the pressure in the automatic transmission (usually on models with a CVT).

Causes: Defective pressure solenoid, wiring problems, contaminated transmission fluid.

Solution: Check the pressure solenoid and wiring, replace the transmission fluid if it is contaminated.

8. P0101 — Mass Air Flow (MAF) Sensor Malfunction

Description: This code indicates a problem with the MAF sensor.

Causes: Contamination of the MAF sensor, air leaks after the sensor.

Solution: Clean or replace the MAF sensor, check the intake system for leaks.

9. B1404 - Airbag Problems

Description: An error in the airbag system indicating a malfunction of one of the bags or an open circuit.

Causes: Incorrect connections in the airbag circuit, faulty sensor.

Solution: Diagnose the airbag system, check connections and sensors.

10. P0562 - Low Voltage

Description: This code indicates problems with the power supply to the vehicle system.

Causes: Faulty alternator, weak battery, or wiring problems.

Solution: Check the alternator, battery, and wiring for damage.

Regular diagnostics with an OBD-II scanner will help identify errors at an early stage and eliminate them before serious problems occur.

Timely maintenance, including oil changes, checking spark plugs, filters and sensors, will help avoid many errors.

Checking wiring and connectors for damage, corrosion and loose connections will help prevent failures in electrical systems.