Nissan Navara D40 Error Codes List

This guide provides a detailed overview of common error codes for the Nissan Navara D40, helping you identify and troubleshoot issues efficiently. Each code is explained with possible causes and step-by-step diagnostic procedures, covering key systems like the engine, transmission, and ABS. Whether you're a professional mechanic or a DIY enthusiast, this resource is essential for keeping your Navara D40 in optimal working condition by addressing issues promptly and accurately.

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• 1. P0400 - Exhaust Gas Recirculation (EGR) Low Flow

Reason: This code indicates a problem with the exhaust gas recirculation (EGR) system, which can be caused by a clogged EGR valve, a faulty sensor, a vacuum leak, or wiring problems.

Solutions:

Check and clean the EGR valve.

Check the vacuum hoses for leaks.

Replace faulty sensors or the EGR valve if cleaning does not help.

Check the EGR system wiring and connections.

• 2. P0340 - Camshaft Position (CMP) Sensor Circuit Malfunction

Reason: This code indicates a problem with the camshaft position sensor or its circuit. This can be caused by a faulty sensor, an open or short in the wiring, or problems with the camshaft itself.

Solutions:

Check the sensor wiring and connections.

Replace the camshaft position sensor if the wiring is OK.

Check the condition and alignment of the camshaft.

• 3. P0500 - Vehicle Speed Sensor (VSS) Circuit Malfunction

Reason: This code means that the engine control unit (ECU) is not receiving a correct signal from the vehicle speed sensor (VSS). Possible causes include a faulty sensor, damaged wiring, or problems with the ECU itself.

Solutions:

Check the wiring and connections of the speed sensor.

Replace the speed sensor if the wiring is OK.

As a last resort, check the operation of the ECU and replace it if necessary.

• 4. P0420 - Catalyst System Low Efficiency (Bank 1)

Reason: This code indicates a problem with the catalytic converter on the first side of the engine. This can be caused by a worn catalytic converter, faulty oxygen sensors, or problems with the fuel system.

Solutions:

Check and replace faulty oxygen sensors.

Check the operation of the catalytic converter and replace it if it is worn.

Check the fuel delivery system for problems.

• 5. P0101 - Mass Air Flow (MAF) Sensor Circuit Range/Performance

Reason: This code means that the signal from the MAF sensor is out of acceptable limits. This can be caused by a dirty sensor, an air leak after the sensor, faulty wiring, or problems with the ECU.

Solution:

Clean the MAF sensor with a special cleaner.

Check the intake system for air leaks.

Check the sensor wiring and replace it if necessary.

• 6. P0335 - Crankshaft Position (CKP) Sensor Circuit Malfunction

Reason: This code indicates a problem with the crankshaft position sensor. Possible causes include a faulty sensor, open wiring, or problems with the crankshaft itself.

Solution:

Check and replace the crankshaft position sensor.

Check the wiring and connections of the sensor.

Make sure the sensor is installed correctly after replacement.

• 7. P0705 - Transmission Range Sensor Malfunction

Reason: This code is related to a malfunction of the sensor that detects the position of the gear selector. This can be caused by damaged wiring, incorrect sensor position, or sensor malfunction.

Solution methods:

Check the gear selector position sensor and its wiring.

Make sure the sensor is installed correctly.

Replace the sensor if the problem persists.