AutoCodes – Infiniti – P0605 2003 Infiniti G35

P0605 2003 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 2003 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 3,937

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 2003 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 2003 Infiniti G35 - Engine Control Module Fault - AutoCodes.com — P0605 2003 Infiniti G35 Code - Engine Control Module Fault

What does this mean?

What are the Possible Causes of the DTC P0605 2003 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 2003 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 2003 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 2003 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 2003 Infiniti G35 Code

1. What does OBDII code P0605 mean for a 2003 Infiniti G35?

The OBDII code P0605 indicates a fault in the Engine Control Module (ECM) of the 2003 Infiniti G35.

2. What are the common symptoms of a P0605 ECM fault in a 2003 Infiniti G35?

Common symptoms of a P0605 ECM fault include check engine light illumination, poor engine performance, stalling, and rough idling.

3. What are the possible causes of a P0605 ECM fault in a 2003 Infiniti G35?

Possible causes of a P0605 ECM fault include damaged ECM, faulty wiring or connections, software issues, or a malfunctioning power supply.

4. How can I diagnose a P0605 ECM fault in my 2003 Infiniti G35?

Diagnosing a P0605 ECM fault involves using an OBDII scanner to retrieve the trouble code, checking for any visible wiring issues, and performing a thorough inspection of the ECM.

5. Can a P0605 ECM fault be repaired, or does the ECM need to be replaced in a 2003 Infiniti G35?

In some cases, a P0605 ECM fault can be repaired by addressing the underlying issue, such as fixing wiring problems or updating the ECM software. However, if the ECM is severely damaged, replacement may be necessary.

6. Are there any DIY repair tips for addressing a P0605 ECM fault in a 2003 Infiniti G35?

DIY repair tips for a P0605 ECM fault include checking and cleaning ECM connections, ensuring proper voltage supply, and consulting the vehicle's service manual for specific troubleshooting steps.

7. How much does it typically cost to repair a P0605 ECM fault in a 2003 Infiniti G35?

The cost of repairing a P0605 ECM fault in a 2003 Infiniti G35 can vary depending on the underlying issue and whether the ECM needs to be repaired or replaced. It is advisable to consult a professional mechanic for an accurate repair estimate.

8. Is it safe to continue driving with a P0605 ECM fault in a 2003 Infiniti G35?

It is not recommended to continue driving with a P0605 ECM fault, as it can lead to further engine performance issues and potential safety hazards. It is best to address the problem promptly.

9. How long does it typically take to repair a P0605 ECM fault in a 2003 Infiniti G35?

The repair time for a P0605 ECM fault in a 2003 Infiniti G35 can vary depending on the extent of the issue and the repair method chosen. It is advisable to consult a professional mechanic for a more accurate time estimate.

10. Can a P0605 ECM fault in a 2003 Infiniti G35 be prevented?

While some causes of a P0605 ECM fault may be unavoidable, regular vehicle maintenance, timely software updates, and proper handling of the ECM can help prevent or minimize the risk of encountering this issue.