AutoCodesInfiniti – P0650 2004 Infiniti G35

P0650 2004 Infiniti G35 Code - Malfunction Indicator Lamp Control Circuit Malfunction

Quick Answer

Malfunction Indicator Lamp (MIL) is located on the instrument panel. Common causes include Faulty Malfunction Indicator Lamp Bulb, Malfunction Indicator Lamp Bulb harness is open or shorted, Malfunction Indicator Lamp Bulb circuit poor electrical connection. 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
P0650 2004 Infiniti G35 indicates Malfunction Indicator Lamp Control Circuit Malfunction.
Common causes
Common causes include Faulty Malfunction Indicator Lamp Bulb, Malfunction Indicator Lamp Bulb harness is open or shorted, Malfunction Indicator Lamp Bulb circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,903
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0650 2004 Infiniti G35 Description

Malfunction Indicator Lamp (MIL) is located on the instrument panel. When the ignition switch is turned ON without engine running, MIL will light up. This is a bulb check. When the engine is started, MIL should go off. If MIL remains on, the on board diagnostic system has detected an engine system malfunction.
OBDII Code P0650 2004 Infiniti G35 - Malfunction Indicator Lamp Control Circuit Malfunction - AutoCodes.com
P0650 2004 Infiniti G35 Code - Malfunction Indicator Lamp Control Circuit Malfunction

What are the Possible Causes of the DTC P0650 2004 Infiniti G35?

  • Faulty Malfunction Indicator Lamp Bulb
  • Malfunction Indicator Lamp Bulb harness is open or shorted
  • Malfunction Indicator Lamp Bulb circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0650 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0650 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 P0650 2004 Infiniti G35 code?

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Need Help with the 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 P0650 2004 Infiniti G35 Code

1. What does OBDII code P0650 mean on a 2004 Infiniti G35?

P0650 indicates a malfunction in the Malfunction Indicator Lamp (MIL) control circuit, meaning the circuit responsible for illuminating the check engine light may not be functioning properly.

2. What are the common symptoms of code P0650 on a 2004 Infiniti G35?

Typical symptoms include the check engine light not turning on when there’s an issue, or the light staying on when it shouldn’t. You may also notice other unrelated engine performance issues.

3. What causes the P0650 code to trigger on a 2004 Infiniti G35?

Common causes include a faulty MIL bulb, damaged wiring or connectors in the MIL circuit, a blown fuse, or a malfunctioning engine control module (ECM).

4. Can a P0650 code affect the performance of my 2004 Infiniti G35?

The P0650 code itself doesn't directly affect engine performance, but it can prevent you from being alerted to other engine issues, which could lead to long-term damage if left unchecked.

5. How do I diagnose the P0650 code on my 2004 Infiniti G35?

Start by checking the MIL bulb for proper operation. Inspect the wiring and connectors for damage or corrosion, and test the circuit for continuity. If no issues are found, the ECM may need to be evaluated.

6. Can I drive my 2004 Infiniti G35 with a P0650 code?

Yes, you can drive the car, but it's not recommended to ignore the issue. The check engine light may not function correctly, which could prevent you from identifying other critical problems.

7. How do I fix the P0650 code on my 2004 Infiniti G35?

Repairs may involve replacing the MIL bulb, repairing or replacing damaged wiring or connectors, replacing a blown fuse, or, in rare cases, replacing the ECM.

8. How much does it cost to fix a P0650 code on a 2004 Infiniti G35?

The cost depends on the root cause. Replacing a MIL bulb or fixing wiring typically costs $50–$200, while ECM replacement can cost $500–$1,500.

9. Can a faulty ECM cause the P0650 code on a 2004 Infiniti G35?

Yes, a faulty ECM can cause this code, although it's less common. The ECM controls the MIL circuit, so a malfunctioning ECM might fail to properly operate the check engine light.

10. Is the P0650 code specific to Infiniti G35s?

No, the P0650 code is a generic OBDII code applicable to many vehicles, but the troubleshooting process and repairs can vary based on the car’s make and model.

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