Nissan Quest E52 Full Error Codes List (PDF)

This diagnostic guide for the Nissan Quest E52 (2011–2017) provides step-by-step instructions for identifying and interpreting error codes using an OBD-II scanner. It explains how to read and clear trouble codes from the engine, ABS, airbags, and other systems. The manual covers common fault codes, their meanings, and recommended troubleshooting steps. Whether diagnosing engine issues, electrical problems, or sensor malfunctions, this guide helps users resolve errors efficiently and maintain optimal vehicle performance. Ideal for both DIY mechanics and professionals.

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1. P0420 - Catalyst System Efficiency Below Threshold (Bank 1)

• Cause: This code indicates that the catalytic converter is not performing efficiently. This may result from a faulty oxygen sensor, catalytic converter deterioration, or exhaust leaks.
• Solution: Inspect the oxygen sensors and replace if necessary. If sensors are working properly, the catalytic converter might need to be replaced.

2. P0171 - System Too Lean (Bank 1)

• Cause: The air-fuel mixture is too lean, which can be caused by vacuum leaks, a dirty mass air flow (MAF) sensor, or fuel injector issues.
• Solution: Inspect for vacuum leaks, clean the MAF sensor, and check the fuel injectors for clogs. Replace or repair components as needed.

3. P0300 - Random/Multiple Cylinder Misfire

• Cause: Misfires can occur due to worn spark plugs, faulty ignition coils, or fuel delivery issues.
• Solution: Check the spark plugs and ignition coils and replace any that are damaged or worn. Inspect the fuel injectors and clean or replace if needed.

4. P0456 - Evaporative Emission System Leak Detected (Small Leak)

• Cause: A small leak in the evaporative emissions system, often caused by a loose or damaged gas cap or issues with the EVAP system.
• Solution: Ensure the gas cap is tightly closed or replace it if damaged. If the issue persists, inspect the EVAP system for leaks or damaged components.

5. P0101 - Mass Air Flow Sensor Circuit Range/Performance

• Cause: This code is triggered when the mass air flow (MAF) sensor detects an abnormal air intake flow.
• Solution: Clean or replace the MAF sensor. Ensure there are no air intake leaks and that the air filter is clean.

6. P0340 - Camshaft Position Sensor Circuit Malfunction

• Cause: This code indicates an issue with the camshaft position sensor, which could cause timing issues with fuel injection and ignition.
• Solution: Inspect the camshaft position sensor and its wiring for damage. Replace the sensor if it’s faulty.

7. C1142 - ABS Pressure Sensor Circuit

• Cause: This code points to a fault in the ABS pressure sensor, which can affect braking performance.
• Solution: Inspect the ABS pressure sensor and wiring. Replace the sensor if it’s faulty and reset the ABS system.

8. P0507 - Idle Control System RPM Higher Than Expected

• Cause: A high idle speed can be caused by vacuum leaks, a faulty idle air control valve (IACV), or throttle body issues.
• Solution: Check for vacuum leaks, clean or replace the throttle body and IACV if necessary.

9. P0720 - Output Speed Sensor Circuit Malfunction

• Cause: This code is related to a fault in the output speed sensor, which monitors the vehicle’s speed and assists with gear shifts.
• Solution: Inspect the output speed sensor and its wiring. Replace the sensor if it is damaged or malfunctioning.

10. B1049 - Airbag Sensor Failure

• Cause: This error indicates a malfunction in the airbag sensor, which can prevent the system from deploying airbags during an accident.
• Solution: Inspect the airbag sensor and its wiring for damage. Replace the sensor if needed, and reset the airbag system.

Preventative Measures:

• Regularly check sensors and electrical connections for wear.
• Ensure vacuum hoses and seals are intact.
• Perform routine maintenance on the air intake system and fuel system to prevent issues.