AutoCodes – Infiniti – P0605 2004 Infiniti G35

P0605 2004 Infiniti G35 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 Infiniti G35 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 3,859

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0605 2004 Infiniti G35 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 Infiniti G35 - Engine Control Module Fault - AutoCodes.com — P0605 2004 Infiniti G35 Code - Engine Control Module Fault

What does this mean?

What are the Possible Causes of the DTC P0605 2004 Infiniti G35?

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 Infiniti G35?

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 ECM to repair the problem.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0605 2004 Infiniti G35 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 Infiniti G35 code?

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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 2004 Infiniti G35 Code

1. What does the OBDII code P0605 on a 2004 Infiniti G35 indicate?

The code P0605 for a 2004 Infiniti G35 signifies a malfunction in the Engine Control Module (ECM), also known as the vehicle's computer.

2. What are the common symptoms of an Engine Control Module fault (P0605) in a 2004 Infiniti G35?

Common symptoms of an ECM fault (P0605) in a 2004 Infiniti G35 include stalling, rough idling, poor acceleration, and potential issues with starting the vehicle.

3. What are the possible causes of the P0605 code in a 2004 Infiniti G35?

The P0605 code in a 2004 Infiniti G35 can be triggered by issues such as a faulty ECM, wiring problems, corrosion in connectors, or a software malfunction.

4. How can I diagnose an Engine Control Module fault (P0605) in my 2004 Infiniti G35?

Diagnosing a P0605 code in a 2004 Infiniti G35 typically involves using an OBDII scanner to read the code, checking the ECM connections, inspecting wiring for damage, and performing a thorough visual inspection.

5. Is it safe to continue driving my 2004 Infiniti G35 with the P0605 code present?

It is not recommended to drive your 2004 Infiniti G35 with the P0605 code active, as it can lead to potential performance issues and further damage to the vehicle.

6. How can I repair the Engine Control Module fault (P0605) in my 2004 Infiniti G35?

Repairing a P0605 code in a 2004 Infiniti G35 may involve replacing the ECM, repairing damaged wiring or connectors, or reprogramming the ECM with updated software.

7. Can a DIY enthusiast fix the P0605 code in a 2004 Infiniti G35?

While some aspects of diagnosing and repairing the P0605 code can be done by a DIY enthusiast, dealing with the ECM itself may require specialized equipment and expertise best handled by a professional mechanic.

8. How much does it cost to repair the P0605 code in a 2004 Infiniti G35?

The cost of repairing a P0605 code in a 2004 Infiniti G35 can vary depending on the specific issue causing the fault, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Are there any preventive measures to avoid encountering the P0605 code in a 2004 Infiniti G35?

Regular maintenance, including checking and cleaning ECM connections, inspecting wiring harnesses, and keeping software up-to-date, can help prevent issues that may trigger the P0605 code.

10. Can a disconnected or dead battery cause the P0605 code in a 2004 Infiniti G35 to appear?

Yes, a disconnected or dead battery in a 2004 Infiniti G35 can sometimes cause the P0605 code to appear due to a loss of power to the ECM. Reconnecting or replacing the battery and clearing the code may resolve the issue.