AutoCodes – Nissan – P0605 2009 Nissan Sentra

P0605 2009 Nissan Sentra 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 2009 Nissan Sentra 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.

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Code Popularity 3,489

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 Sep 02, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0605 2009 Nissan Sentra 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 2009 Nissan Sentra - Engine Control Module Fault - AutoCodes.com — P0605 2009 Nissan Sentra Code - Engine Control Module Fault

What does this mean?

What are the Possible Causes of the DTC P0605 2009 Nissan Sentra?

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 2009 Nissan Sentra?

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 does this mean?

Code Tech Notes

Try erasing the code first, if the light comes back 'ON' you may have to replace the Engine Control Module (ECM) to repair the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0605 2009 Nissan Sentra 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 2009 Nissan Sentra code?

Need more information on how to fix the P0605 2009 Nissan Sentra code? Get Access to Factory Service Manuals

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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 2009 Nissan Sentra Code

1. What does the OBDII code P0605 mean for a 2009 Nissan Sentra?

The OBDII code P0605 for a 2009 Nissan Sentra signifies a fault in the Engine Control Module (ECM), also known as the Powertrain Control Module (PCM).

2. What are the common symptoms of an ECM fault indicated by code P0605?

Common symptoms of an ECM fault triggered by code P0605 in a 2009 Nissan Sentra include engine performance issues, stalling, rough idling, and problems with starting the vehicle.

3. What are the potential causes of the ECM fault leading to code P0605 in a 2009 Nissan Sentra?

The ECM fault indicated by code P0605 in a 2009 Nissan Sentra can be caused by a damaged or faulty ECM, wiring issues, a software malfunction, or a disrupted communication between the ECM and other control modules.

4. How can I diagnose an ECM fault associated with code P0605 in my 2009 Nissan Sentra?

To diagnose an ECM fault related to code P0605 in a 2009 Nissan Sentra, it is recommended to use an OBDII scanner to retrieve the trouble code, inspect the ECM for physical damage, check the wiring connections, and perform a software update if necessary.

5. What are the repair options for fixing an ECM fault with code P0605 in a 2009 Nissan Sentra?

Repair options for addressing an ECM fault flagged by code P0605 in a 2009 Nissan Sentra may include repairing or replacing the ECM, repairing any damaged wiring, updating the ECM software, or seeking assistance from a professional mechanic for further diagnosis and repair.

6. Can driving with an ECM fault indicated by code P0605 in a 2009 Nissan Sentra cause further damage?

Continuing to drive with an ECM fault identified by code P0605 in a 2009 Nissan Sentra can potentially lead to further engine performance issues, reduced fuel efficiency, and possible damage to other engine components over time.

7. How much does it typically cost to repair an ECM fault associated with code P0605 in a 2009 Nissan Sentra?

The cost of repairing an ECM fault linked to code P0605 in a 2009 Nissan Sentra can vary depending on the extent of the damage, the need for ECM replacement, and labor costs, with estimates ranging from a few hundred to over a thousand dollars.

8. Is it safe to continue driving my 2009 Nissan Sentra with a persistent code P0605 indicating an ECM fault?

It is not recommended to continue driving a 2009 Nissan Sentra with a persistent code P0605 indicating an ECM fault, as this can lead to potential engine performance issues, safety concerns, and further damage to the vehicle.

9. Can I reset the ECM to clear the P0605 trouble code on my 2009 Nissan Sentra?

While resetting the ECM may temporarily clear the P0605 trouble code on a 2009 Nissan Sentra, it is crucial to address the underlying cause of the fault to prevent the code from reoccurring and potentially causing more significant issues.

10. How long does it take to repair an ECM fault associated with code P0605 in a 2009 Nissan Sentra?

The time required to repair an ECM fault linked to code P0605 in a 2009 Nissan Sentra can vary based on the specific issue, the availability of replacement parts, and the expertise of the mechanic, with repairs typically taking several hours to complete.