AutoCodes – Nissan – P0605 Nissan

P0605 Nissan Code - Engine Control Module Fault

Quick Answer

The Engine Control Module (ECM) continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. Common causes include Engine Control Module (ECM) may be faulty, ECM harness power supply circuit is open or shorted, ECM harness ground circuit is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0605 Nissan indicates Engine Control Module Fault.
Common causes
Common causes include Engine Control Module (ECM) may be faulty, ECM harness power supply circuit is open or shorted, ECM harness ground circuit is open or shorted.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 97,939
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Dec 25, 2022
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Code P0605 Nissan Description

The Engine Control Module (ECM) continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. This self-check insures that the ECM is functioning properly. If any malfunction is detected, the ECM sets the P0605 code and illuminates the MIL.
OBDII Code P0605 Nissan - Engine Control Module Fault - AutoCodes.com
P0605 Nissan Code - Engine Control Module Fault

What are the Possible Causes of the DTC P0605 Nissan?

  • Engine Control Module (ECM) may be faulty
  • ECM harness power supply circuit is open or shorted
  • ECM harness ground circuit is open or shorted

How to Fix the DTC P0605 Nissan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0605 Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Nissan Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0605 Nissan Code

1. What are the common symptoms of OBDII code P0605 in a Nissan vehicle?

- Common symptoms include the Check Engine light illuminating, poor engine performance, rough idling, and possible stalling.

2. What causes the OBDII code P0605, indicating an Engine Control Module fault in a Nissan?

- The P0605 code typically points to a malfunction within the Engine Control Module (ECM) itself, often due to internal failures or faulty programming.

3. How can I diagnose the OBDII code P0605 in my Nissan?

- To diagnose P0605, a professional technician will perform a comprehensive scan of the ECM to identify the specific fault and verify if the issue lies within the module itself.

4. Can a faulty battery or alternator trigger the OBDII code P0605 in a Nissan?

- Yes, a weak or failing battery, alternator, or electrical system can sometimes cause voltage fluctuations that lead to the triggering of the P0605 code.

5. What are the potential repair options for resolving the OBDII code P0605 in a Nissan?

- Repair options may include reprogramming or replacing the ECM, addressing any underlying electrical issues, or seeking assistance from a certified mechanic for a thorough diagnosis and repair.

6. Is it safe to continue driving with the OBDII code P0605 illuminated in a Nissan?

- It is not recommended to drive with the P0605 code present, as it can lead to further engine issues and potential safety hazards. It's best to address the problem promptly.

7. Can resetting the ECM clear the OBDII code P0605 in a Nissan temporarily?

- Resetting the ECM may temporarily clear the code, but if the underlying issue causing the fault is not addressed, the code is likely to reappear once the ECM detects the problem again.

8. Are there any preventive maintenance steps to avoid encountering the OBDII code P0605 in a Nissan?

- Regularly servicing your vehicle, maintaining the electrical system, and promptly addressing any Check Engine light warnings can help prevent issues that may trigger the P0605 code.

9. How much does it typically cost to repair the OBDII code P0605 in a Nissan?

- The cost of repairing the P0605 code can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can a DIY enthusiast attempt to fix the OBDII code P0605 in a Nissan, or is it best left to professionals?

- Due to the complexity of diagnosing and repairing ECM-related faults, it is generally recommended to seek the expertise of a qualified mechanic or technician for addressing the P0605 code in a Nissan.

1. What are common symptoms of OBDII code P0605 in a Nissan vehicle?

- Common symptoms include engine stalling, rough idling, poor acceleration, and illuminated Check Engine light.

2. What does OBDII code P0605 indicate in a Nissan?

- OBDII code P0605 indicates a fault with the Engine Control Module (ECM) in the vehicle.

3. What are the possible causes of OBDII code P0605 in a Nissan?

- Possible causes include a faulty ECM, damaged wiring or connectors, software issues, or a weak vehicle battery.

4. How can I diagnose OBDII code P0605 in my Nissan?

- Diagnosing OBDII code P0605 typically involves using a diagnostic scanner to retrieve the code, checking for any other related codes, and inspecting the ECM and its connections.

5. Can I still drive my Nissan with OBDII code P0605?

- It is not recommended to drive your Nissan with OBDII code P0605 as it can lead to further damage to the vehicle and potential safety hazards.

6. How can I repair OBDII code P0605 in my Nissan?

- Repairing OBDII code P0605 may involve replacing the ECM, repairing any damaged wiring or connectors, updating the ECM software, or addressing any underlying battery issues.

7. Is it possible to reset OBDII code P0605 in a Nissan?

- Resetting OBDII code P0605 without addressing the underlying issue is not recommended, as the code is likely to reappear once the ECM detects the fault again.

8. Can a DIY enthusiast fix OBDII code P0605 in a Nissan?

- While some aspects of diagnosing and repairing OBDII code P0605 can be done by a DIY enthusiast, working on the ECM and its components may require specialized knowledge and tools.

9. How much does it cost to repair OBDII code P0605 in a Nissan?

- The cost of repairing OBDII code P0605 in a Nissan can vary depending on the underlying cause, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. How can I prevent OBDII code P0605 from appearing in my Nissan in the future?

- To prevent OBDII code P0605 from reoccurring, make sure to perform regular maintenance on your vehicle, address any issues promptly, and avoid prolonged use of jumper cables or jump-starting the vehicle.

Discuss the causes and fixes for P0605 Nissan OBDII Code

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