AutoCodes – Nissan – P0605 2008 Nissan Sentra

P0605 2008 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 2008 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 3,501

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 2008 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 2008 Nissan Sentra - Engine Control Module Fault - AutoCodes.com — P0605 2008 Nissan Sentra Code - Engine Control Module Fault

What does this mean?

What are the Possible Causes of the DTC P0605 2008 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 2008 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 2008 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 2008 Nissan Sentra code?

Need more information on how to fix the P0605 2008 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 2008 Nissan Sentra Code

What does OBDII code P0605 mean for a 2008 Nissan Sentra?

OBDII code P0605 indicates a fault with the Engine Control Module (ECM), which may suggest internal issues within the module itself.

What are the common symptoms of P0605 in a 2008 Nissan Sentra?

Common symptoms include engine misfires, poor fuel economy, stalling, or the engine not starting, along with the check engine light being illuminated.

What could cause the P0605 code to trigger in a 2008 Nissan Sentra?

Possible causes include a faulty ECM, poor electrical connections or wiring issues, or a short circuit within the ECM.

How can I diagnose the P0605 code in my 2008 Nissan Sentra?

To diagnose, start by checking for other trouble codes, inspect wiring and connectors for damage, and perform a visual inspection on the ECM before considering replacement.

Is it safe to drive a 2008 Nissan Sentra with a P0605 code?

While it may be safe to drive short distances, it is advisable to address the issue as it can lead to more severe engine problems and affect drivability.

What are some common repair solutions for a P0605 code?

Repairs may include reprogramming or replacing the ECM, fixing wiring issues, or securing poor connections to the module.

Can I clear the P0605 code without fixing the problem?

You can clear the code, but if the underlying issue is not resolved, the code will likely reappear after driving for a short time.

How much does it typically cost to repair a P0605 code in a 2008 Nissan Sentra?

Repair costs can vary widely, but replacing an ECM can range from $500 to $1,500, including parts and labor, depending on the service provider.

Are there any DIY steps I can take to troubleshoot P0605 on my own?

You can start by checking the battery voltage, inspecting all related wiring and connectors for damage, and ensuring that the ECM is properly mounted and grounded.