AutoCodes – Nissan – P0605 2004 Nissan Maxima

P0605 2004 Nissan Maxima 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 2004 Nissan Maxima 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 4,341

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0605 2004 Nissan Maxima 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 2004 Nissan Maxima - Engine Control Module Fault - AutoCodes.com — P0605 2004 Nissan Maxima Code - Engine Control Module Fault

What does this mean?

What are the Possible Causes of the DTC P0605 2004 Nissan Maxima?

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 2004 Nissan Maxima?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0605 2004 Nissan Maxima 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.

Need more information about the P0605 2004 Nissan Maxima code?

Need more information on how to fix the P0605 2004 Nissan Maxima code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0605 2004 Nissan Maxima code diagnosed by a professional: Find a repair shop in your area

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 2004 Nissan Maxima Code

1. What is OBDII code P0605 for a 2004 Nissan Maxima?

The P0605 code indicates a malfunction in the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM).

2. What are the common symptoms of a P0605 ECM fault in a 2004 Nissan Maxima?

Common symptoms include engine stalling, rough idling, decreased fuel efficiency, and issues with acceleration.

3. What are the possible causes of a P0605 code in a 2004 Nissan Maxima?

Causes can include a faulty ECM, damaged wiring or connectors, low vehicle battery voltage, or issues with other control modules.

4. How can I diagnose a P0605 ECM fault in my 2004 Nissan Maxima?

Diagnosis involves using an OBDII scanner to read and interpret the code, checking for other related codes, and conducting a thorough inspection of the ECM and its connections.

5. Can a P0605 ECM fault be repaired or reset in a 2004 Nissan Maxima?

In some cases, the ECM may need to be repaired or replaced by a qualified technician. Attempting to reset the code without addressing the underlying issue is not recommended.

6. Are there any DIY tips for addressing a P0605 ECM fault in a 2004 Nissan Maxima?

DIY tips include checking for loose or damaged wiring, ensuring proper battery voltage, and consulting the vehicle's service manual for specific troubleshooting steps.

7. Is it safe to continue driving with a P0605 code on a 2004 Nissan Maxima?

It is not recommended to drive with a P0605 ECM fault, as it can lead to further damage to the vehicle and potentially unsafe driving conditions.

8. How much does it typically cost to repair a P0605 ECM fault in a 2004 Nissan Maxima?

Costs can vary depending on the extent of the issue and whether the ECM needs to be repaired or replaced. It is advisable to get a professional diagnosis for an accurate estimate.

9. Can a P0605 code clear on its own in a 2004 Nissan Maxima?

The code may clear temporarily, but if the underlying issue is not addressed, it is likely to return. It is important to diagnose and repair the problem to prevent further issues.

10. How can I prevent a P0605 ECM fault in my 2004 Nissan Maxima?

Regular maintenance, checking for proper battery voltage, and addressing any warning signs or symptoms promptly can help prevent a P0605 code from occurring.