Nissan Quest V42 Factory  Error Codes List (DTC)

This page provides a comprehensive list of error codes for the Nissan Quest V42 (2003–2010). It explains common dashboard warning lights, including check engine, ABS, airbag, and battery indicators. Each code is accompanied by a description of the issue, possible causes, and troubleshooting steps. Whether it's an engine malfunction, sensor failure, or electrical issue, this guide helps owners diagnose and resolve problems effectively, ensuring the vehicle runs smoothly and safely.

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

• Cause: This error indicates that the catalytic converter is not performing efficiently, often due to a faulty oxygen sensor or a failing catalytic converter.
• Solution: Inspect and, if necessary, replace the oxygen sensors. If the problem persists, check the catalytic converter for damage and consider replacing it.

2. P0171 - System Too Lean (Bank 1)

• Cause: This code usually means there is too much air and not enough fuel in the combustion process. Common causes include vacuum leaks, dirty mass air flow (MAF) sensor, or fuel injector issues.
• Solution: Check for vacuum leaks, clean the MAF sensor, and inspect fuel injectors. Repair or replace faulty components as needed.

3. P0300 - Random/Multiple Cylinder Misfire Detected

• Cause: A misfire can be caused by bad spark plugs, ignition coils, or fuel delivery issues.
• Solution: Inspect and replace spark plugs or ignition coils if necessary. Check the fuel injectors for clogging and clean or replace them if needed.

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

• Cause: This code points to a small leak in the evaporative emissions system, often caused by a loose or faulty gas cap or a leak in the EVAP system.
• Solution: Ensure the gas cap is tightened properly or replace it if worn. If the issue continues, inspect the EVAP system for leaks or damaged hoses.

5. P0507 - Idle Control System RPM Higher Than Expected

• Cause: This error occurs when the idle speed is higher than normal, which could be caused by vacuum leaks, a faulty idle air control valve (IACV), or issues with the throttle body.
• Solution: Check for vacuum leaks and clean the throttle body and IACV. Replace faulty components if needed.

6. P0340 - Camshaft Position Sensor Circuit Malfunction

• Cause: This code indicates an issue with the camshaft position sensor, which helps the engine control module (ECM) manage the timing of fuel injection and ignition.
• Solution: Inspect the camshaft position sensor and its wiring for damage. Replace the sensor if it is faulty.

7. C1145 - ABS Sensor Circuit Failure

• Cause: This error is related to the anti-lock braking system (ABS) sensor, usually caused by a damaged sensor or wiring.
• Solution: Check the ABS sensor and its wiring for any damage or dirt. Clean or replace the sensor if necessary.

8. P0720 - Output Speed Sensor Circuit Malfunction

• Cause: This error is related to the output speed sensor in the transmission, which monitors the speed of the vehicle and assists with shifting.
• Solution: Inspect the output speed sensor and its wiring for damage. Replace the sensor if it is faulty.

9. B1049 - Airbag Sensor Failure

• Cause: This code indicates a problem with the airbag sensor, which could be caused by a faulty sensor or wiring issue.
• Solution: Inspect the airbag sensor and wiring for faults. Replace the sensor if necessary and reset the airbag system.

10. P0113 - Intake Air Temperature Sensor Circuit High Input

• Cause: This code signals that the intake air temperature (IAT) sensor is reading higher than expected, possibly due to a faulty sensor or wiring.
• Solution: Inspect and clean the IAT sensor and check the wiring for damage. Replace the sensor if necessary.